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GitHub - uber/h3-js: h3-js provides a JavaScript version of H3, a hexagon-based geospatial indexing system.
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class="flex-1"> <button aria-label="Toggle navigation" aria-expanded="false" type="button" data-view-component="true" class="js-details-target js-nav-padding-recalculate js-header-menu-toggle Button--link Button--medium Button d-lg-none color-fg-inherit p-1"> <span class="Button-content"> <span class="Button-label"><div class="HeaderMenu-toggle-bar rounded my-1"></div> <div class="HeaderMenu-toggle-bar rounded my-1"></div> <div class="HeaderMenu-toggle-bar rounded my-1"></div></span> </span> </button> </div> <a class="mr-lg-3 color-fg-inherit flex-order-2 js-prevent-focus-on-mobile-nav" href="/" aria-label="Homepage" data-analytics-event="{"category":"Marketing nav","action":"click to go to homepage","label":"ref_page:Marketing;ref_cta:Logomark;ref_loc:Header"}"> <svg height="32" aria-hidden="true" viewBox="0 0 24 24" version="1.1" width="32" data-view-component="true" class="octicon octicon-mark-github"> <path d="M12 1C5.9225 1 1 5.9225 1 12C1 16.8675 4.14875 20.9787 8.52125 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pb-2 pb-lg-4 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"github_copilot","context":"product","tag":"link","label":"github_copilot_link_product_navbar"}" href="https://github.com/features/copilot"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-copilot color-fg-subtle mr-3"> <path d="M23.922 16.992c-.861 1.495-5.859 5.023-11.922 5.023-6.063 0-11.061-3.528-11.922-5.023A.641.641 0 0 1 0 16.736v-2.869a.841.841 0 0 1 .053-.22c.372-.935 1.347-2.292 2.605-2.656.167-.429.414-1.055.644-1.517a10.195 10.195 0 0 1-.052-1.086c0-1.331.282-2.499 1.132-3.368.397-.406.89-.717 1.474-.952 1.399-1.136 3.392-2.093 6.122-2.093 2.731 0 4.767.957 6.166 2.093.584.235 1.077.546 1.474.952.85.869 1.132 2.037 1.132 3.368 0 .368-.014.733-.052 1.086.23.462.477 1.088.644 1.517 1.258.364 2.233 1.721 2.605 2.656a.832.832 0 0 1 .053.22v2.869a.641.641 0 0 1-.078.256ZM12.172 11h-.344a4.323 4.323 0 0 1-.355.508C10.703 12.455 9.555 13 7.965 13c-1.725 0-2.989-.359-3.782-1.259a2.005 2.005 0 0 1-.085-.104L4 11.741v6.585c1.435.779 4.514 2.179 8 2.179 3.486 0 6.565-1.4 8-2.179v-6.585l-.098-.104s-.033.045-.085.104c-.793.9-2.057 1.259-3.782 1.259-1.59 0-2.738-.545-3.508-1.492a4.323 4.323 0 0 1-.355-.508h-.016.016Zm.641-2.935c.136 1.057.403 1.913.878 2.497.442.544 1.134.938 2.344.938 1.573 0 2.292-.337 2.657-.751.384-.435.558-1.15.558-2.361 0-1.14-.243-1.847-.705-2.319-.477-.488-1.319-.862-2.824-1.025-1.487-.161-2.192.138-2.533.529-.269.307-.437.808-.438 1.578v.021c0 .265.021.562.063.893Zm-1.626 0c.042-.331.063-.628.063-.894v-.02c-.001-.77-.169-1.271-.438-1.578-.341-.391-1.046-.69-2.533-.529-1.505.163-2.347.537-2.824 1.025-.462.472-.705 1.179-.705 2.319 0 1.211.175 1.926.558 2.361.365.414 1.084.751 2.657.751 1.21 0 1.902-.394 2.344-.938.475-.584.742-1.44.878-2.497Z"></path><path d="M14.5 14.25a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Zm-5 0a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Z"></path> </svg> <div> <div class="color-fg-default h4">GitHub Copilot</div> Write better code with AI </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"security","context":"product","tag":"link","label":"security_link_product_navbar"}" href="https://github.com/features/security"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon 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</svg> <div> <div class="color-fg-default h4">Codespaces</div> Instant dev environments </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"issues","context":"product","tag":"link","label":"issues_link_product_navbar"}" href="https://github.com/features/issues"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-issue-opened color-fg-subtle mr-3"> <path d="M12 1c6.075 0 11 4.925 11 11s-4.925 11-11 11S1 18.075 1 12 5.925 1 12 1ZM2.5 12a9.5 9.5 0 0 0 9.5 9.5 9.5 9.5 0 0 0 9.5-9.5A9.5 9.5 0 0 0 12 2.5 9.5 9.5 0 0 0 2.5 12Zm9.5 2a2 2 0 1 1-.001-3.999A2 2 0 0 1 12 14Z"></path> </svg> <div> <div class="color-fg-default h4">Issues</div> Plan and track work </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline 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data-view-component="true" class="octicon octicon-code-square color-fg-subtle mr-3"> <path d="M10.3 8.24a.75.75 0 0 1-.04 1.06L7.352 12l2.908 2.7a.75.75 0 1 1-1.02 1.1l-3.5-3.25a.75.75 0 0 1 0-1.1l3.5-3.25a.75.75 0 0 1 1.06.04Zm3.44 1.06a.75.75 0 1 1 1.02-1.1l3.5 3.25a.75.75 0 0 1 0 1.1l-3.5 3.25a.75.75 0 1 1-1.02-1.1l2.908-2.7-2.908-2.7Z"></path><path d="M2 3.75C2 2.784 2.784 2 3.75 2h16.5c.966 0 1.75.784 1.75 1.75v16.5A1.75 1.75 0 0 1 20.25 22H3.75A1.75 1.75 0 0 1 2 20.25Zm1.75-.25a.25.25 0 0 0-.25.25v16.5c0 .138.112.25.25.25h16.5a.25.25 0 0 0 .25-.25V3.75a.25.25 0 0 0-.25-.25Z"></path> </svg> <div> <div class="color-fg-default h4">Code Search</div> Find more, search less </div> </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="product-explore-heading">Explore</span> <ul class="list-style-none f5" aria-labelledby="product-explore-heading"> 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0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"github_skills","context":"product","tag":"link","label":"github_skills_link_product_navbar"}" href="https://skills.github.com"> GitHub Skills <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 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6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="custom-scopes-dialog-title"> <div data-view-component="true" class="Overlay-body"> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <div hidden class="create-custom-scope-form" data-target="custom-scopes.createCustomScopeForm"> <!-- '"` --><!-- </textarea></xmp> --></option></form><form id="custom-scopes-dialog-form" data-turbo="false" action="/search/custom_scopes" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="4Vku4nXeLLBjc9wq+K5r5Zw8s6jLYOoHP4WaJjQkHPtS60+6NBNRSyPQQ0pv1ruqNk0hiRHVUpa3zfyx9Yl88Q==" /> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <input type="hidden" 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src=\"https://camo.githubusercontent.com/9fc58d6fee1f6dcf99e2a7968f616e8935ab28e43967b75022e678da5b24ceab/68747470733a2f2f62616467652e667572792e696f2f6a732f68332d6a732e737667\" alt=\"npm version\" data-canonical-src=\"https://badge.fury.io/js/h3-js.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/uber/h3/releases/tag/v4.1.0\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/1caaad54879f4b0af503c7f0a8d6e1fb65b649e90415182813027af1a7143a41/68747470733a2f2f696d672e736869656c64732e696f2f7374617469632f76313f6c6162656c3d6833253230617069266d6573736167653d76342e312e3026636f6c6f723d626c7565\" alt=\"H3 Version\" data-canonical-src=\"https://img.shields.io/static/v1?label=h3%20api\u0026amp;message=v4.1.0\u0026amp;color=blue\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003eh3-js\u003c/code\u003e library provides a pure-JavaScript version of the \u003ca href=\"https://github.com/uber/h3\"\u003eH3 Core Library\u003c/a\u003e, a hexagon-based geographic grid system. It can be used either in Node \u0026gt;= 6 or in the browser. The core library is transpiled from C using \u003ca href=\"http://kripken.github.io/emscripten-site\" rel=\"nofollow\"\u003eemscripten\u003c/a\u003e, offering full parity with the C API and highly efficient operations.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFor more information on H3 and for the full API documentation, please see the \u003ca href=\"https://h3geo.org\" rel=\"nofollow\"\u003eH3 Documentation\u003c/a\u003e.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePost \u003cstrong\u003ebug reports or feature requests\u003c/strong\u003e to the \u003ca href=\"https://github.com/uber/h3-js/issues\"\u003eGithub Issues page\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003eAsk \u003cstrong\u003equestions\u003c/strong\u003e by posting to the \u003ca href=\"https://stackoverflow.com/questions/tagged/h3\" rel=\"nofollow\"\u003eH3 tag on StackOverflow\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eInstall\u003c/h2\u003e\u003ca id=\"user-content-install\" class=\"anchor\" aria-label=\"Permalink: Install\" href=\"#install\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"npm install h3-js\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003enpm install h3-js\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eUsage\u003c/h2\u003e\u003ca id=\"user-content-usage\" class=\"anchor\" aria-label=\"Permalink: Usage\" href=\"#usage\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e🎉 \u003cstrong\u003eNote:\u003c/strong\u003e The following usage docs apply to \u003cstrong\u003eH3 v4\u003c/strong\u003e, which was released on August 23, 2022.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eFor v3 docs, \u003ca href=\"https://github.com/uber/h3-js/blob/v3.7.2/README.md\"\u003esee the latest v3.x.x release\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eFor breaking changes in v4, \u003ca href=\"/uber/h3-js/blob/master/CHANGELOG.md\"\u003esee the CHANGELOG\u003c/a\u003e. In particular, most \u003ca href=\"https://h3geo.org/docs/library/migration-3.x/functions\" rel=\"nofollow\"\u003efunction names have changed\u003c/a\u003e.\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eThe library uses ES6 modules. Bundles for Node and the browser are built to the \u003ccode\u003edist\u003c/code\u003e folder.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eImport\u003c/h3\u003e\u003ca id=\"user-content-import\" class=\"anchor\" aria-label=\"Permalink: Import\" href=\"#import\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eES6 usage:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"import {latLngToCell} from \u0026quot;h3-js\u0026quot;;\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elatLngToCell\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"h3-js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCommonJS usage:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"const h3 = require(\u0026quot;h3-js\u0026quot;);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-en\"\u003erequire\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"h3-js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ePre-bundled script (library is available as an \u003ccode\u003eh3\u003c/code\u003e global):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-text-html-basic notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"\u0026lt;script src=\u0026quot;https://unpkg.com/h3-js\u0026quot;\u0026gt;\u0026lt;/script\u0026gt;\"\u003e\u003cpre\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-ent\"\u003escript\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003esrc\u003c/span\u003e=\"\u003cspan class=\"pl-s\"\u003ehttps://unpkg.com/h3-js\u003c/span\u003e\"\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;/\u003c/span\u003e\u003cspan class=\"pl-ent\"\u003escript\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCore functions\u003c/h3\u003e\u003ca id=\"user-content-core-functions\" class=\"anchor\" aria-label=\"Permalink: Core functions\" href=\"#core-functions\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// Convert a lat/lng point to a hexagon index at resolution 7\nconst h3Index = h3.latLngToCell(37.3615593, -122.0553238, 7);\n// -\u0026gt; '87283472bffffff'\n\n// Get the center of the hexagon\nconst hexCenterCoordinates = h3.cellToLatLng(h3Index);\n// -\u0026gt; [37.35171820183272, -122.05032565263946]\n\n// Get the vertices of the hexagon\nconst hexBoundary = h3.cellToBoundary(h3Index);\n// -\u0026gt; [ [37.341099093235684, -122.04156135164334 ], ...]\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// Convert a lat/lng point to a hexagon index at resolution 7\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3Index\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elatLngToCell\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e37.3615593\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e122.0553238\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e7\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// -\u0026gt; '87283472bffffff'\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Get the center of the hexagon\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ehexCenterCoordinates\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecellToLatLng\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eh3Index\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// -\u0026gt; [37.35171820183272, -122.05032565263946]\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Get the vertices of the hexagon\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ehexBoundary\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecellToBoundary\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eh3Index\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// -\u0026gt; [ [37.341099093235684, -122.04156135164334 ], ...]\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eUseful algorithms\u003c/h3\u003e\u003ca id=\"user-content-useful-algorithms\" class=\"anchor\" aria-label=\"Permalink: Useful algorithms\" href=\"#useful-algorithms\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// Get all neighbors within 1 step of the hexagon\nconst disk = h3.gridDisk(h3Index, 1);\n// -\u0026gt; ['87283472bffffff', '87283472affffff', ...]\n\n// Get the set of hexagons within a polygon\nconst polygon = [\n [37.813318999983238, -122.4089866999972145],\n [37.7198061999978478, -122.3544736999993603],\n [37.8151571999998453, -122.4798767000009008]\n];\nconst hexagons = h3.polygonToCells(polygon, 7);\n// -\u0026gt; ['872830828ffffff', '87283082effffff', ...]\n\n// Get the outline of a set of hexagons, as a GeoJSON-style MultiPolygon\nconst coordinates = h3.cellsToMultiPolygon(hexagons, true);\n// -\u0026gt; [[[\n// [-122.37681938644465, 37.76546768434345],\n// [-122.3856345540363,37.776004200673846],\n// ...\n// ]]]\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// Get all neighbors within 1 step of the hexagon\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edisk\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003egridDisk\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eh3Index\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// -\u0026gt; ['87283472bffffff', '87283472affffff', ...]\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Get the set of hexagons within a polygon\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003epolygon\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e37.813318999983238\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e122.4089866999972145\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e37.7198061999978478\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e122.3544736999993603\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e37.8151571999998453\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e122.4798767000009008\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ehexagons\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003epolygonToCells\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003epolygon\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e7\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// -\u0026gt; ['872830828ffffff', '87283082effffff', ...]\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Get the outline of a set of hexagons, as a GeoJSON-style MultiPolygon\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecoordinates\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eh3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecellsToMultiPolygon\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ehexagons\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// -\u0026gt; [[[\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// [-122.37681938644465, 37.76546768434345],\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// [-122.3856345540363,37.776004200673846],\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// ...\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// ]]]\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eAPI Reference\u003c/h2\u003e\u003ca id=\"user-content-api-reference\" class=\"anchor\" aria-label=\"Permalink: API Reference\" href=\"#api-reference\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3\u003c/h2\u003e\u003ca id=\"user-content-h3\" class=\"anchor\" aria-label=\"Permalink: h3\" href=\"#h3\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ca href=\"#module_h3\"\u003eh3\u003c/a\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.UNITS\"\u003e.UNITS\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.POLYGON_TO_CELLS_FLAGS\"\u003e.POLYGON_TO_CELLS_FLAGS\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.h3IndexToSplitLong\"\u003e.h3IndexToSplitLong(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eSplitLong\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.splitLongToH3Index\"\u003e.splitLongToH3Index(lower, upper)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.isValidCell\"\u003e.isValidCell(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.isPentagon\"\u003e.isPentagon(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.isResClassIII\"\u003e.isResClassIII(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getBaseCellNumber\"\u003e.getBaseCellNumber(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getIcosahedronFaces\"\u003e.getIcosahedronFaces(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getResolution\"\u003e.getResolution(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.latLngToCell\"\u003e.latLngToCell(lat, lng, res)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToLatLng\"\u003e.cellToLatLng(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eCoordPair\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToBoundary\"\u003e.cellToBoundary(h3Index, [formatAsGeoJson])\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;CoordPair\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToParent\"\u003e.cellToParent(h3Index, res)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToChildren\"\u003e.cellToChildren(h3Index, res)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToChildrenSize\"\u003e.cellToChildrenSize(h3Index, res)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToCenterChild\"\u003e.cellToCenterChild(h3Index, res)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToChildPos\"\u003e.cellToChildPos(h3Index, parentRes)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.childPosToCell\"\u003e.childPosToCell(childPos, h3Index, childRes)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.gridDisk\"\u003e.gridDisk(h3Index, ringSize)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.gridDiskDistances\"\u003e.gridDiskDistances(h3Index, ringSize)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;H3Index\u0026gt;\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.gridRingUnsafe\"\u003e.gridRingUnsafe(h3Index, ringSize)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.polygonToCells\"\u003e.polygonToCells(coordinates, res, [isGeoJson])\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.polygonToCellsExperimental\"\u003e.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson])\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellsToMultiPolygon\"\u003e.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson])\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;Array.\u0026lt;CoordPair\u0026gt;\u0026gt;\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.compactCells\"\u003e.compactCells(h3Set)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.uncompactCells\"\u003e.uncompactCells(compactedSet, res)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.areNeighborCells\"\u003e.areNeighborCells(origin, destination)\u003c/a\u003e ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellsToDirectedEdge\"\u003e.cellsToDirectedEdge(origin, destination)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getDirectedEdgeOrigin\"\u003e.getDirectedEdgeOrigin(edgeIndex)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getDirectedEdgeDestination\"\u003e.getDirectedEdgeDestination(edgeIndex)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.isValidDirectedEdge\"\u003e.isValidDirectedEdge(edgeIndex)\u003c/a\u003e ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.directedEdgeToCells\"\u003e.directedEdgeToCells(edgeIndex)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.originToDirectedEdges\"\u003e.originToDirectedEdges(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.directedEdgeToBoundary\"\u003e.directedEdgeToBoundary(edgeIndex, [formatAsGeoJson])\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;CoordPair\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.gridDistance\"\u003e.gridDistance(origin, destination)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.gridPathCells\"\u003e.gridPathCells(origin, destination)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToLocalIj\"\u003e.cellToLocalIj(origin, destination)\u003c/a\u003e ⇒ \u003ccode\u003eCoordIJ\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.localIjToCell\"\u003e.localIjToCell(origin, coords)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.greatCircleDistance\"\u003e.greatCircleDistance(latLng1, latLng2, unit)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellArea\"\u003e.cellArea(h3Index, unit)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.edgeLength\"\u003e.edgeLength(edge, unit)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getHexagonAreaAvg\"\u003e.getHexagonAreaAvg(res, unit)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getHexagonEdgeLengthAvg\"\u003e.getHexagonEdgeLengthAvg(res, unit)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToVertex\"\u003e.cellToVertex(h3Index, vertexNum)\u003c/a\u003e ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.cellToVertexes\"\u003e.cellToVertexes(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.vertexToLatLng\"\u003e.vertexToLatLng(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eCoordPair\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.isValidVertex\"\u003e.isValidVertex(h3Index)\u003c/a\u003e ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getNumCells\"\u003e.getNumCells(res)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getRes0Cells\"\u003e.getRes0Cells()\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.getPentagons\"\u003e.getPentagons(res)\u003c/a\u003e ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.degsToRads\"\u003e.degsToRads(deg)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.radsToDegs\"\u003e.radsToDegs(rad)\u003c/a\u003e ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.H3Index\"\u003e.H3Index\u003c/a\u003e : \u003ccode\u003estring\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.H3IndexInput\"\u003e.H3IndexInput\u003c/a\u003e : \u003ccode\u003estring\u003c/code\u003e | \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.CoordIJ\"\u003e.CoordIJ\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.H3Error\"\u003e.H3Error\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.CoordPair\"\u003e.CoordPair\u003c/a\u003e : \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"#module_h3.SplitLong\"\u003e.SplitLong\u003c/a\u003e : \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.units\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.UNITS\u003c/h3\u003e\u003ca id=\"user-content-h3units\" class=\"anchor\" aria-label=\"Permalink: h3.UNITS\" href=\"#h3units\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eLength/Area units\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eProperties\u003c/strong\u003e\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eName\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003em\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003em2\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ekm\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ekm2\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003erads\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003erads2\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.polygon_to_cells_flags\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.POLYGON_TO_CELLS_FLAGS\u003c/h3\u003e\u003ca id=\"user-content-h3polygon_to_cells_flags\" class=\"anchor\" aria-label=\"Permalink: h3.POLYGON_TO_CELLS_FLAGS\" href=\"#h3polygon_to_cells_flags\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eMode flags for polygonToCells\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eProperties\u003c/strong\u003e\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eName\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003econtainmentCenter\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003econtainmentFull\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003econtainmentOverlapping\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003econtainmentOverlappingBbox\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.h3indextosplitlong\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.h3IndexToSplitLong(h3Index) ⇒ \u003ccode\u003eSplitLong\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3h3indextosplitlongh3index--splitlong\" class=\"anchor\" aria-label=\"Permalink: h3.h3IndexToSplitLong(h3Index) ⇒ SplitLong\" href=\"#h3h3indextosplitlongh3index--splitlong\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eConvert an H3 index (64-bit hexidecimal string) into a \"split long\" - a pair of 32-bit ints\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eSplitLong\u003c/code\u003e - A two-element array with 32 lower bits and 32 upper bits\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to check\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.splitlongtoh3index\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.splitLongToH3Index(lower, upper) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3splitlongtoh3indexlower-upper--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.splitLongToH3Index(lower, upper) ⇒ H3Index\" href=\"#h3splitlongtoh3indexlower-upper--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet a H3 index string from a split long (pair of 32-bit ints)\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003elower\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eLower 32 bits\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eupper\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eUpper 32 bits\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.isvalidcell\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.isValidCell(h3Index) ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3isvalidcellh3index--boolean\" class=\"anchor\" aria-label=\"Permalink: h3.isValidCell(h3Index) ⇒ boolean\" href=\"#h3isvalidcellh3index--boolean\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhether a given string represents a valid H3 index\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eboolean\u003c/code\u003e - Whether the index is valid\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to check\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.ispentagon\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.isPentagon(h3Index) ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3ispentagonh3index--boolean\" class=\"anchor\" aria-label=\"Permalink: h3.isPentagon(h3Index) ⇒ boolean\" href=\"#h3ispentagonh3index--boolean\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhether the given H3 index is a pentagon\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eboolean\u003c/code\u003e - isPentagon\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to check\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.isresclassiii\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.isResClassIII(h3Index) ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3isresclassiiih3index--boolean\" class=\"anchor\" aria-label=\"Permalink: h3.isResClassIII(h3Index) ⇒ boolean\" href=\"#h3isresclassiiih3index--boolean\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhether the given H3 index is in a Class III resolution (rotated versus\nthe icosahedron and subject to shape distortion adding extra points on\nicosahedron edges, making them not true hexagons).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eboolean\u003c/code\u003e - isResClassIII\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to check\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getbasecellnumber\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getBaseCellNumber(h3Index) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getbasecellnumberh3index--number\" class=\"anchor\" aria-label=\"Permalink: h3.getBaseCellNumber(h3Index) ⇒ number\" href=\"#h3getbasecellnumberh3index--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the number of the base cell for a given H3 index\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Index of the base cell (0-121)\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get the base cell for\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.geticosahedronfaces\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getIcosahedronFaces(h3Index) ⇒ \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3geticosahedronfacesh3index--arraynumber\" class=\"anchor\" aria-label=\"Permalink: h3.getIcosahedronFaces(h3Index) ⇒ Array.\u0026lt;number\u0026gt;\" href=\"#h3geticosahedronfacesh3index--arraynumber\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the indices of all icosahedron faces intersected by a given H3 index\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e - Indices (0-19) of all intersected faces\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get faces for\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getresolution\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getResolution(h3Index) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getresolutionh3index--number\" class=\"anchor\" aria-label=\"Permalink: h3.getResolution(h3Index) ⇒ number\" href=\"#h3getresolutionh3index--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eReturns the resolution of an H3 index\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - The number (0-15) resolution, or -1 if invalid\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get resolution\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.latlngtocell\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.latLngToCell(lat, lng, res) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3latlngtocelllat-lng-res--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.latLngToCell(lat, lng, res) ⇒ H3Index\" href=\"#h3latlngtocelllat-lng-res--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the hexagon containing a lat,lon point\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003elat\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eLatitude of point\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003elng\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eLongtitude of point\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of hexagons to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltolatlng\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToLatLng(h3Index) ⇒ \u003ccode\u003eCoordPair\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltolatlngh3index--coordpair\" class=\"anchor\" aria-label=\"Permalink: h3.cellToLatLng(h3Index) ⇒ CoordPair\" href=\"#h3celltolatlngh3index--coordpair\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the lat,lon center of a given hexagon\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eCoordPair\u003c/code\u003e - Point as a [lat, lng] pair\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltoboundary\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToBoundary(h3Index, [formatAsGeoJson]) ⇒ \u003ccode\u003eArray.\u0026lt;CoordPair\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltoboundaryh3index-formatasgeojson--arraycoordpair\" class=\"anchor\" aria-label=\"Permalink: h3.cellToBoundary(h3Index, [formatAsGeoJson]) ⇒ Array.\u0026lt;CoordPair\u0026gt;\" href=\"#h3celltoboundaryh3index-formatasgeojson--arraycoordpair\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the vertices of a given hexagon (or pentagon), as an array of [lat, lng]\npoints. For pentagons and hexagons on the edge of an icosahedron face, this\nfunction may return up to 10 vertices.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;CoordPair\u0026gt;\u003c/code\u003e - Array of [lat, lng] pairs\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e[formatAsGeoJson]\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eboolean\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eWhether to provide GeoJSON output: [lng, lat], closed loops\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltoparent\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToParent(h3Index, res) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltoparenth3index-res--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.cellToParent(h3Index, res) ⇒ H3Index\" href=\"#h3celltoparenth3index-res--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the parent of the given hexagon at a particular resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index of parent, or null for invalid input\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get parent for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of hexagon to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltochildren\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToChildren(h3Index, res) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltochildrenh3index-res--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.cellToChildren(h3Index, res) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3celltochildrenh3index-res--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the children/descendents of the given hexagon at a particular resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - H3 indexes of children, or empty array for invalid input\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If resolution is invalid or output is too large for JS\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get children for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of hexagons to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltochildrensize\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToChildrenSize(h3Index, res) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltochildrensizeh3index-res--number\" class=\"anchor\" aria-label=\"Permalink: h3.cellToChildrenSize(h3Index, res) ⇒ number\" href=\"#h3celltochildrensizeh3index-res--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the number of children for a cell at a given resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Number of children at res for the given cell\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If cell or parentRes are invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get child count for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eChild resolution\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltocenterchild\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToCenterChild(h3Index, res) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltocenterchildh3index-res--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.cellToCenterChild(h3Index, res) ⇒ H3Index\" href=\"#h3celltocenterchildh3index-res--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the center child of the given hexagon at a particular resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index of child, or null for invalid input\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If resolution is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get center child for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of cell to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltochildpos\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToChildPos(h3Index, parentRes) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltochildposh3index-parentres--number\" class=\"anchor\" aria-label=\"Permalink: h3.cellToChildPos(h3Index, parentRes) ⇒ number\" href=\"#h3celltochildposh3index-parentres--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the position of the cell within an ordered list of all children of the\ncell's parent at the specified resolution.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Position of child within parent at parentRes\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If cell or parentRes are invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index to get child pos for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eparentRes\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of reference parent\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.childpostocell\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.childPosToCell(childPos, h3Index, childRes) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3childpostocellchildpos-h3index-childres--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.childPosToCell(childPos, h3Index, childRes) ⇒ H3Index\" href=\"#h3childpostocellchildpos-h3index-childres--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the child cell at a given position within an ordered list of all children\nat the specified resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index of child\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003echildPos\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003ePosition of the child cell to get\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the parent cell\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003echildRes\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of child cell to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.griddisk\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.gridDisk(h3Index, ringSize) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3griddiskh3index-ringsize--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.gridDisk(h3Index, ringSize) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3griddiskh3index-ringsize--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all hexagons in a k-ring around a given center. The order of the hexagons is undefined.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - H3 indexes for all hexagons in ring\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid or output is too large for JS\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of center hexagon\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eringSize\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eRadius of k-ring\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.griddiskdistances\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.gridDiskDistances(h3Index, ringSize) ⇒ \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;H3Index\u0026gt;\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3griddiskdistancesh3index-ringsize--arrayarrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.gridDiskDistances(h3Index, ringSize) ⇒ Array.\u0026lt;Array.\u0026lt;H3Index\u0026gt;\u0026gt;\" href=\"#h3griddiskdistancesh3index-ringsize--arrayarrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all hexagons in a k-ring around a given center, in an array of arrays\nordered by distance from the origin. The order of the hexagons within each ring is undefined.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;H3Index\u0026gt;\u0026gt;\u003c/code\u003e - Array of arrays with H3 indexes for all hexagons each ring\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid or output is too large for JS\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of center hexagon\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eringSize\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eRadius of k-ring\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.gridringunsafe\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.gridRingUnsafe(h3Index, ringSize) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3gridringunsafeh3index-ringsize--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.gridRingUnsafe(h3Index, ringSize) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3gridringunsafeh3index-ringsize--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all hexagons in a hollow hexagonal ring centered at origin with sides of a given length.\nUnlike gridDisk, this function will throw an error if there is a pentagon anywhere in the ring.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - H3 indexes for all hexagons in ring\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eError\u003c/code\u003e If the algorithm could not calculate the ring\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of center hexagon\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eringSize\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eRadius of ring\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.polygontocells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.polygonToCells(coordinates, res, [isGeoJson]) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3polygontocellscoordinates-res-isgeojson--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.polygonToCells(coordinates, res, [isGeoJson]) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3polygontocellscoordinates-res-isgeojson--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all hexagons with centers contained in a given polygon. The polygon\nis specified with GeoJson semantics as an array of loops. Each loop is\nan array of [lat, lng] pairs (or [lng, lat] if isGeoJson is specified).\nThe first loop is the perimeter of the polygon, and subsequent loops are\nexpected to be holes.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - H3 indexes for all hexagons in polygon\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid or output is too large for JS\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ecoordinates\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;Array.\u0026lt;number\u0026gt;\u0026gt;\u003c/code\u003e | \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;Array.\u0026lt;number\u0026gt;\u0026gt;\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eArray of loops, or a single loop\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of hexagons to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e[isGeoJson]\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eboolean\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eWhether to expect GeoJson-style [lng, lat] pairs instead of [lat, lng]\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.polygontocellsexperimental\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson]) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3polygontocellsexperimentalcoordinates-res-flags-isgeojson--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson]) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3polygontocellsexperimentalcoordinates-res-flags-isgeojson--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all hexagons with centers contained in a given polygon. The polygon\nis specified with GeoJson semantics as an array of loops. Each loop is\nan array of [lat, lng] pairs (or [lng, lat] if isGeoJson is specified).\nThe first loop is the perimeter of the polygon, and subsequent loops are\nexpected to be holes.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - H3 indexes for all hexagons in polygon\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid or output is too large for JS\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ecoordinates\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;Array.\u0026lt;number\u0026gt;\u0026gt;\u003c/code\u003e | \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;Array.\u0026lt;number\u0026gt;\u0026gt;\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eArray of loops, or a single loop\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eResolution of hexagons to return\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eflags\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eValue from POLYGON_TO_CELLS_FLAGS\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e[isGeoJson]\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eboolean\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eWhether to expect GeoJson-style [lng, lat] pairs instead of [lat, lng]\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.cellstomultipolygon\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson]) ⇒ \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;Array.\u0026lt;CoordPair\u0026gt;\u0026gt;\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3cellstomultipolygonh3indexes-formatasgeojson--arrayarrayarraycoordpair\" class=\"anchor\" aria-label=\"Permalink: h3.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson]) ⇒ Array.\u0026lt;Array.\u0026lt;Array.\u0026lt;CoordPair\u0026gt;\u0026gt;\u0026gt;\" href=\"#h3cellstomultipolygonh3indexes-formatasgeojson--arrayarrayarraycoordpair\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the outlines of a set of H3 hexagons, returned in GeoJSON MultiPolygon\nformat (an array of polygons, each with an array of loops, each an array of\ncoordinates). Coordinates are returned as [lat, lng] pairs unless GeoJSON\nis requested.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIt is the responsibility of the caller to ensure that all hexagons in the\nset have the same resolution and that the set contains no duplicates. Behavior\nis undefined if duplicates or multiple resolutions are present, and the\nalgorithm may produce unexpected or invalid polygons.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;Array.\u0026lt;Array.\u0026lt;CoordPair\u0026gt;\u0026gt;\u0026gt;\u003c/code\u003e - MultiPolygon-style output.\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Indexes\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;H3IndexInput\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 indexes to get outlines for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e[formatAsGeoJson]\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eboolean\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eWhether to provide GeoJSON output: [lng, lat], closed loops\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.compactcells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.compactCells(h3Set) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3compactcellsh3set--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.compactCells(h3Set) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3compactcellsh3set--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCompact a set of hexagons of the same resolution into a set of hexagons across\nmultiple levels that represents the same area.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - Compacted H3 indexes\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid (e.g. duplicate hexagons)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Set\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;H3IndexInput\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 indexes to compact\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.uncompactcells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.uncompactCells(compactedSet, res) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3uncompactcellscompactedset-res--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.uncompactCells(compactedSet, res) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3uncompactcellscompactedset-res--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eUncompact a compacted set of hexagons to hexagons of the same resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - The uncompacted H3 indexes\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid (e.g. invalid resolution)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ecompactedSet\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;H3IndexInput\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 indexes to uncompact\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eThe resolution to uncompact to\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.areneighborcells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.areNeighborCells(origin, destination) ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3areneighborcellsorigin-destination--boolean\" class=\"anchor\" aria-label=\"Permalink: h3.areNeighborCells(origin, destination) ⇒ boolean\" href=\"#h3areneighborcellsorigin-destination--boolean\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhether two H3 indexes are neighbors (share an edge)\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eboolean\u003c/code\u003e - Whether the hexagons share an edge\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eorigin\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003edestination\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDestination hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.cellstodirectededge\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellsToDirectedEdge(origin, destination) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3cellstodirectededgeorigin-destination--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.cellsToDirectedEdge(origin, destination) ⇒ H3Index\" href=\"#h3cellstodirectededgeorigin-destination--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet an H3 index representing a unidirectional edge for a given origin and destination\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index of the edge, or null if no edge is shared\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eorigin\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003edestination\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDestination hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getdirectededgeorigin\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getDirectedEdgeOrigin(edgeIndex) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getdirectededgeoriginedgeindex--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.getDirectedEdgeOrigin(edgeIndex) ⇒ H3Index\" href=\"#h3getdirectededgeoriginedgeindex--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the origin hexagon from an H3 index representing a unidirectional edge\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index of the edge origin\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eedgeIndex\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the edge\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getdirectededgedestination\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getDirectedEdgeDestination(edgeIndex) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getdirectededgedestinationedgeindex--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.getDirectedEdgeDestination(edgeIndex) ⇒ H3Index\" href=\"#h3getdirectededgedestinationedgeindex--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the destination hexagon from an H3 index representing a unidirectional edge\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index of the edge destination\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eedgeIndex\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the edge\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.isvaliddirectededge\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.isValidDirectedEdge(edgeIndex) ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3isvaliddirectededgeedgeindex--boolean\" class=\"anchor\" aria-label=\"Permalink: h3.isValidDirectedEdge(edgeIndex) ⇒ boolean\" href=\"#h3isvaliddirectededgeedgeindex--boolean\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhether the input is a valid unidirectional edge\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eboolean\u003c/code\u003e - Whether the index is valid\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eedgeIndex\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the edge\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.directededgetocells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.directedEdgeToCells(edgeIndex) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3directededgetocellsedgeindex--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.directedEdgeToCells(edgeIndex) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3directededgetocellsedgeindex--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the [origin, destination] pair represented by a unidirectional edge\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - [origin, destination] pair as H3 indexes\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eedgeIndex\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the edge\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.origintodirectededges\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.originToDirectedEdges(h3Index) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3origintodirectededgesh3index--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.originToDirectedEdges(h3Index) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3origintodirectededgesh3index--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all of the unidirectional edges with the given H3 index as the origin (i.e. an edge to\nevery neighbor)\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - List of unidirectional edges\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the origin hexagon\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.directededgetoboundary\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.directedEdgeToBoundary(edgeIndex, [formatAsGeoJson]) ⇒ \u003ccode\u003eArray.\u0026lt;CoordPair\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3directededgetoboundaryedgeindex-formatasgeojson--arraycoordpair\" class=\"anchor\" aria-label=\"Permalink: h3.directedEdgeToBoundary(edgeIndex, [formatAsGeoJson]) ⇒ Array.\u0026lt;CoordPair\u0026gt;\" href=\"#h3directededgetoboundaryedgeindex-formatasgeojson--arraycoordpair\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the vertices of a given edge as an array of [lat, lng] points. Note that for edges that\ncross the edge of an icosahedron face, this may return 3 coordinates.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;CoordPair\u0026gt;\u003c/code\u003e - Array of geo coordinate pairs\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eedgeIndex\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the edge\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e[formatAsGeoJson]\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eboolean\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eWhether to provide GeoJSON output: [lng, lat]\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.griddistance\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.gridDistance(origin, destination) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3griddistanceorigin-destination--number\" class=\"anchor\" aria-label=\"Permalink: h3.gridDistance(origin, destination) ⇒ number\" href=\"#h3griddistanceorigin-destination--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the grid distance between two hex indexes. This function may fail\nto find the distance between two indexes if they are very far apart or\non opposite sides of a pentagon.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Distance between hexagons\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid or the distance could not be calculated\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eorigin\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003edestination\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDestination hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.gridpathcells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.gridPathCells(origin, destination) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3gridpathcellsorigin-destination--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.gridPathCells(origin, destination) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3gridpathcellsorigin-destination--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGiven two H3 indexes, return the line of indexes between them (inclusive).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThis function may fail to find the line between two indexes, for\nexample if they are very far apart. It may also fail when finding\ndistances for indexes on opposite sides of a pentagon.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eNotes:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eThe specific output of this function should not be considered stable\nacross library versions. The only guarantees the library provides are\nthat the line length will be \u003ccode\u003eh3Distance(start, end) + 1\u003c/code\u003e and that\nevery index in the line will be a neighbor of the preceding index.\u003c/li\u003e\n\u003cli\u003eLines are drawn in grid space, and may not correspond exactly to either\nCartesian lines or great arcs.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - H3 indexes connecting origin and destination\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If input is invalid or the line cannot be calculated\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eorigin\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003edestination\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDestination hexagon index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltolocalij\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToLocalIj(origin, destination) ⇒ \u003ccode\u003eCoordIJ\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltolocalijorigin-destination--coordij\" class=\"anchor\" aria-label=\"Permalink: h3.cellToLocalIj(origin, destination) ⇒ CoordIJ\" href=\"#h3celltolocalijorigin-destination--coordij\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eProduces IJ coordinates for an H3 index anchored by an origin.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eThe coordinate space used by this function may have deleted\nregions or warping due to pentagonal distortion.\u003c/li\u003e\n\u003cli\u003eCoordinates are only comparable if they come from the same\norigin index.\u003c/li\u003e\n\u003cli\u003eFailure may occur if the index is too far away from the origin\nor if the index is on the other side of a pentagon.\u003c/li\u003e\n\u003cli\u003eThis function is experimental, and its output is not guaranteed\nto be compatible across different versions of H3.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eCoordIJ\u003c/code\u003e - Coordinates as an \u003ccode\u003e{i, j}\u003c/code\u003e pair\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the IJ coordinates cannot be calculated\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eorigin\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin H3 index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003edestination\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index for which to find relative coordinates\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.localijtocell\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.localIjToCell(origin, coords) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3localijtocellorigin-coords--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.localIjToCell(origin, coords) ⇒ H3Index\" href=\"#h3localijtocellorigin-coords--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eProduces an H3 index for IJ coordinates anchored by an origin.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eThe coordinate space used by this function may have deleted\nregions or warping due to pentagonal distortion.\u003c/li\u003e\n\u003cli\u003eCoordinates are only comparable if they come from the same\norigin index.\u003c/li\u003e\n\u003cli\u003eFailure may occur if the index is too far away from the origin\nor if the index is on the other side of a pentagon.\u003c/li\u003e\n\u003cli\u003eThis function is experimental, and its output is not guaranteed\nto be compatible across different versions of H3.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - H3 index at the relative coordinates\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the H3 index cannot be calculated\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eorigin\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin H3 index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ecoords\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eCoordIJ\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eCoordinates as an \u003ccode\u003e{i, j}\u003c/code\u003e pair\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.greatcircledistance\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.greatCircleDistance(latLng1, latLng2, unit) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3greatcircledistancelatlng1-latlng2-unit--number\" class=\"anchor\" aria-label=\"Permalink: h3.greatCircleDistance(latLng1, latLng2, unit) ⇒ number\" href=\"#h3greatcircledistancelatlng1-latlng2-unit--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGreat circle distance between two geo points. This is not specific to H3,\nbut is implemented in the library and provided here as a convenience.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Great circle distance\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the unit is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003elatLng1\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eOrigin coordinate as [lat, lng]\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003elatLng2\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDestination coordinate as [lat, lng]\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eunit\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDistance unit (either UNITS.m, UNITS.km, or UNITS.rads)\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.cellarea\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellArea(h3Index, unit) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3cellareah3index-unit--number\" class=\"anchor\" aria-label=\"Permalink: h3.cellArea(h3Index, unit) ⇒ number\" href=\"#h3cellareah3index-unit--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eExact area of a given cell\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Cell area\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the hexagon to measure\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eunit\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDistance unit (either UNITS.m2, UNITS.km2, or UNITS.rads2)\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.edgelength\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.edgeLength(edge, unit) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3edgelengthedge-unit--number\" class=\"anchor\" aria-label=\"Permalink: h3.edgeLength(edge, unit) ⇒ number\" href=\"#h3edgelengthedge-unit--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCalculate length of a given unidirectional edge\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Cell area\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eedge\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eH3 index of the edge to measure\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eunit\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDistance unit (either UNITS.m, UNITS.km, or UNITS.rads)\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.gethexagonareaavg\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getHexagonAreaAvg(res, unit) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3gethexagonareaavgres-unit--number\" class=\"anchor\" aria-label=\"Permalink: h3.getHexagonAreaAvg(res, unit) ⇒ number\" href=\"#h3gethexagonareaavgres-unit--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAverage hexagon area at a given resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Average area\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eHexagon resolution\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eunit\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eArea unit (either UNITS.m2, UNITS.km2, or UNITS.rads2)\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.gethexagonedgelengthavg\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getHexagonEdgeLengthAvg(res, unit) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3gethexagonedgelengthavgres-unit--number\" class=\"anchor\" aria-label=\"Permalink: h3.getHexagonEdgeLengthAvg(res, unit) ⇒ number\" href=\"#h3gethexagonedgelengthavgres-unit--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAverage hexagon edge length at a given resolution\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Average edge length\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eHexagon resolution\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eunit\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eDistance unit (either UNITS.m, UNITS.km, or UNITS.rads)\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltovertex\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToVertex(h3Index, vertexNum) ⇒ \u003ccode\u003eH3Index\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltovertexh3index-vertexnum--h3index\" class=\"anchor\" aria-label=\"Permalink: h3.cellToVertex(h3Index, vertexNum) ⇒ H3Index\" href=\"#h3celltovertexh3index-vertexnum--h3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eFind the index for a vertex of a cell.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eH3Index\u003c/code\u003e - Vertex index\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eCell to find the vertex for\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003evertexNum\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eNumber (index) of the vertex to calculate\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.celltovertexes\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.cellToVertexes(h3Index) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3celltovertexesh3index--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.cellToVertexes(h3Index) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3celltovertexesh3index--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eFind the indexes for all vertexes of a cell.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - All vertex indexes of this cell\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eCell to find all vertexes for\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.vertextolatlng\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.vertexToLatLng(h3Index) ⇒ \u003ccode\u003eCoordPair\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3vertextolatlngh3index--coordpair\" class=\"anchor\" aria-label=\"Permalink: h3.vertexToLatLng(h3Index) ⇒ CoordPair\" href=\"#h3vertextolatlngh3index--coordpair\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the lat, lng of a given vertex\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eCoordPair\u003c/code\u003e - Latitude, longitude coordinates of the vertex\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the input is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eA vertex index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.isvalidvertex\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.isValidVertex(h3Index) ⇒ \u003ccode\u003eboolean\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3isvalidvertexh3index--boolean\" class=\"anchor\" aria-label=\"Permalink: h3.isValidVertex(h3Index) ⇒ boolean\" href=\"#h3isvalidvertexh3index--boolean\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eReturns true if the input is a valid vertex index.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eboolean\u003c/code\u003e - True if the index represents a vertex\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eh3Index\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eH3IndexInput\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eAn index to test for being a vertex index\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getnumcells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getNumCells(res) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getnumcellsres--number\" class=\"anchor\" aria-label=\"Permalink: h3.getNumCells(res) ⇒ number\" href=\"#h3getnumcellsres--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe total count of hexagons in the world at a given resolution. Note that above\nresolution 8 the exact count cannot be represented in a JavaScript 32-bit number,\nso consumers should use caution when applying further operations to the output.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Count\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the resolution is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eHexagon resolution\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getres0cells\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getRes0Cells() ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getres0cells--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.getRes0Cells() ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3getres0cells--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet all H3 indexes at resolution 0. As every index at every resolution \u0026gt; 0 is\nthe descendant of a res 0 index, this can be used with h3ToChildren to iterate\nover H3 indexes at any resolution.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - All H3 indexes at res 0\u003c/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.getpentagons\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.getPentagons(res) ⇒ \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3getpentagonsres--arrayh3index\" class=\"anchor\" aria-label=\"Permalink: h3.getPentagons(res) ⇒ Array.\u0026lt;H3Index\u0026gt;\" href=\"#h3getpentagonsres--arrayh3index\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eGet the twelve pentagon indexes at a given resolution.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003eArray.\u0026lt;H3Index\u0026gt;\u003c/code\u003e - All H3 pentagon indexes at res\u003cbr\u003e\n\u003cstrong\u003eThrows\u003c/strong\u003e:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003eH3Error\u003c/code\u003e If the resolution is invalid\u003c/li\u003e\n\u003c/ul\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eres\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eHexagon resolution\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.degstorads\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.degsToRads(deg) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3degstoradsdeg--number\" class=\"anchor\" aria-label=\"Permalink: h3.degsToRads(deg) ⇒ number\" href=\"#h3degstoradsdeg--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eConvert degrees to radians\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Value in radians\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003edeg\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eValue in degrees\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.radstodegs\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.radsToDegs(rad) ⇒ \u003ccode\u003enumber\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3radstodegsrad--number\" class=\"anchor\" aria-label=\"Permalink: h3.radsToDegs(rad) ⇒ number\" href=\"#h3radstodegsrad--number\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eConvert radians to degrees\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eReturns\u003c/strong\u003e: \u003ccode\u003enumber\u003c/code\u003e - Value in degrees\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParam\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003erad\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eValue in radians\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.h3index\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.H3Index : \u003ccode\u003estring\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3h3index--string\" class=\"anchor\" aria-label=\"Permalink: h3.H3Index : string\" href=\"#h3h3index--string\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e64-bit hexidecimal string representation of an H3 index\u003c/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.h3indexinput\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.H3IndexInput : \u003ccode\u003estring\u003c/code\u003e | \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3h3indexinput--string--arraynumber\" class=\"anchor\" aria-label=\"Permalink: h3.H3IndexInput : string | Array.\u0026lt;number\u0026gt;\" href=\"#h3h3indexinput--string--arraynumber\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e64-bit hexidecimal string representation of an H3 index,\nor two 32-bit integers in little endian order in an array.\u003c/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.coordij\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.CoordIJ\u003c/h3\u003e\u003ca id=\"user-content-h3coordij\" class=\"anchor\" aria-label=\"Permalink: h3.CoordIJ\" href=\"#h3coordij\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCoordinates as an \u003ccode\u003e{i, j}\u003c/code\u003e pair\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eProperties\u003c/strong\u003e\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eName\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ei\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ej\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.h3error\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.H3Error\u003c/h3\u003e\u003ca id=\"user-content-h3h3error\" class=\"anchor\" aria-label=\"Permalink: h3.H3Error\" href=\"#h3h3error\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCustom JS Error instance with an attached error code. Error codes come from the\ncore H3 library and can be found \u003ca href=\"https://h3geo.org/docs/library/errors#table-of-error-codes\" rel=\"nofollow\"\u003ein the H3 docs\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eProperties\u003c/strong\u003e\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eName\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003emessage\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003estring\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ecode\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003enumber\u003c/code\u003e\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.coordpair\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.CoordPair : \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3coordpair--arraynumber\" class=\"anchor\" aria-label=\"Permalink: h3.CoordPair : Array.\u0026lt;number\u0026gt;\" href=\"#h3coordpair--arraynumber\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ePair of lat,lng coordinates (or lng,lat if GeoJSON output is specified)\u003c/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003ca name=\"user-content-module_h3.splitlong\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eh3.SplitLong : \u003ccode\u003eArray.\u0026lt;number\u0026gt;\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-h3splitlong--arraynumber\" class=\"anchor\" aria-label=\"Permalink: h3.SplitLong : Array.\u0026lt;number\u0026gt;\" href=\"#h3splitlong--arraynumber\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ePair of lower,upper 32-bit ints representing a 64-bit value\u003c/p\u003e\n\u003chr\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eLegacy API\u003c/h2\u003e\u003ca id=\"user-content-legacy-api\" class=\"anchor\" aria-label=\"Permalink: Legacy API\" href=\"#legacy-api\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eH3 v4 renamed the majority of the functions in the library. To help ease migration from H3 v3 to H3 v4, we offer a legacy API wrapper at \u003ccode\u003eh3-js/legacy\u003c/code\u003e, which exports the v4 functions with the v3 names. Users are welcome to use the legacy API wrapper as a transitional support, but are encouraged to upgrade to the H3 v4 API as soon as possible.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eNote that the legacy API is \u003cem\u003enot\u003c/em\u003e 100% backwards compatible - it's a thin wrapper on top of the v4 functions, so in cases where behavior has changed, the v4 behavior will be used. In particular, many of the v4 functions will throw errors for invalid input, where v3 functions would return null.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eInstallation:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"npm install h3-js\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003enpm install h3-js\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eUsage:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"import {geoToH3} from 'h3-js/legacy';\n\nconst h3Index = geoToH3(37.3615593, -122.0553238, 7);\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eimport {geoToH3} from 'h3-js/legacy';\n\nconst h3Index = geoToH3(37.3615593, -122.0553238, 7);\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eDevelopment\u003c/h2\u003e\u003ca id=\"user-content-development\" class=\"anchor\" aria-label=\"Permalink: Development\" href=\"#development\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003eh3-js\u003c/code\u003e library uses \u003ccode\u003eyarn\u003c/code\u003e as the preferred package manager. To install the dev dependencies, just run:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo lint the code:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn lint\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn lint\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo run the tests:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn test\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn test\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCode must be formatted with \u003ccode\u003eprettier\u003c/code\u003e; unformatted code will fail the build. To format all files:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn prettier\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn prettier\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eBenchmarks\u003c/h3\u003e\u003ca id=\"user-content-benchmarks\" class=\"anchor\" aria-label=\"Permalink: Benchmarks\" href=\"#benchmarks\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003eh3-js\u003c/code\u003e library includes a basic benchmark suite using \u003ca href=\"https://benchmarkjs.com/\" rel=\"nofollow\"\u003eBenchmark.js\u003c/a\u003e. Because many of the functions may be called over thousands of hexagons in a \"hot loop\", performance is an important concern. Benchmarks are run against the transpiled ES5 code by default.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eTo run the benchmarks in Node:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn benchmark-node\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn benchmark-node\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo run the benchmarks in a browser:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn benchmark-browser\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn benchmark-browser\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eSample Node output (Macbook Pro running Node 12):\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"isValidCell x 3,650,995 ops/sec ±1.67% (87 runs sampled)\nlatLngToCell x 429,982 ops/sec ±1.39% (86 runs sampled)\ncellToLatLng x 1,161,867 ops/sec ±1.11% (84 runs sampled)\ncellToLatLng - integers x 1,555,791 ops/sec ±1.29% (86 runs sampled)\ncellToBoundary x 375,938 ops/sec ±1.25% (87 runs sampled)\ncellToBoundary - integers x 377,181 ops/sec ±1.18% (85 runs sampled)\ngetIcosahedronFaces x 992,946 ops/sec ±1.13% (85 runs sampled)\ngridDisk x 194,400 ops/sec ±1.16% (85 runs sampled)\npolygonToCells_9 x 4,919 ops/sec ±0.79% (87 runs sampled)\npolygonToCells_11 x 368 ops/sec ±0.76% (86 runs sampled)\npolygonToCells_10ring x 76.88 ops/sec ±0.57% (68 runs sampled)\ncellsToMultiPolygon x 760 ops/sec ±1.06% (86 runs sampled)\ncompactCells x 2,466 ops/sec ±0.75% (86 runs sampled)\nuncompactCells x 715 ops/sec ±1.15% (85 runs sampled)\nareNeighborCells x 1,073,086 ops/sec ±1.56% (89 runs sampled)\ncellsToDirectedEdge x 692,172 ops/sec ±1.06% (86 runs sampled)\ngetDirectedEdgeOrigin x 995,390 ops/sec ±1.60% (85 runs sampled)\ngetDirectedEdgeDestination x 930,473 ops/sec ±1.11% (86 runs sampled)\nisValidDirectedEdge x 3,505,407 ops/sec ±1.05% (87 runs sampled)\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eisValidCell x 3,650,995 ops/sec ±1.67% (87 runs sampled)\nlatLngToCell x 429,982 ops/sec ±1.39% (86 runs sampled)\ncellToLatLng x 1,161,867 ops/sec ±1.11% (84 runs sampled)\ncellToLatLng - integers x 1,555,791 ops/sec ±1.29% (86 runs sampled)\ncellToBoundary x 375,938 ops/sec ±1.25% (87 runs sampled)\ncellToBoundary - integers x 377,181 ops/sec ±1.18% (85 runs sampled)\ngetIcosahedronFaces x 992,946 ops/sec ±1.13% (85 runs sampled)\ngridDisk x 194,400 ops/sec ±1.16% (85 runs sampled)\npolygonToCells_9 x 4,919 ops/sec ±0.79% (87 runs sampled)\npolygonToCells_11 x 368 ops/sec ±0.76% (86 runs sampled)\npolygonToCells_10ring x 76.88 ops/sec ±0.57% (68 runs sampled)\ncellsToMultiPolygon x 760 ops/sec ±1.06% (86 runs sampled)\ncompactCells x 2,466 ops/sec ±0.75% (86 runs sampled)\nuncompactCells x 715 ops/sec ±1.15% (85 runs sampled)\nareNeighborCells x 1,073,086 ops/sec ±1.56% (89 runs sampled)\ncellsToDirectedEdge x 692,172 ops/sec ±1.06% (86 runs sampled)\ngetDirectedEdgeOrigin x 995,390 ops/sec ±1.60% (85 runs sampled)\ngetDirectedEdgeDestination x 930,473 ops/sec ±1.11% (86 runs sampled)\nisValidDirectedEdge x 3,505,407 ops/sec ±1.05% (87 runs sampled)\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhen making code changes that may affect performance, please run benchmarks against \u003ccode\u003emaster\u003c/code\u003e and then against your branch to identify any regressions.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eTranspiling the C Source\u003c/h3\u003e\u003ca id=\"user-content-transpiling-the-c-source\" class=\"anchor\" aria-label=\"Permalink: Transpiling the C Source\" href=\"#transpiling-the-c-source\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe core library is transpiled using \u003ca href=\"http://kripken.github.io/emscripten-site\" rel=\"nofollow\"\u003eemscripten\u003c/a\u003e. The easiest way to build from source locally is by using Docker. Make sure Docker is installed, then:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"yarn docker-boot\nyarn build-emscripten\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eyarn docker-boot\nyarn build-emscripten\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe build script uses the \u003ccode\u003eH3_VERSION\u003c/code\u003e file to determine the version of the core library to build. To use a different version of the library (e.g. to test local changes), clone the desired H3 repo to \u003ccode\u003e./h3c\u003c/code\u003e and then run \u003ccode\u003eyarn docker-emscripten\u003c/code\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eContributing\u003c/h2\u003e\u003ca id=\"user-content-contributing\" class=\"anchor\" aria-label=\"Permalink: Contributing\" href=\"#contributing\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ePull requests and \u003ca href=\"https://github.com/uber/h3-js/issues\"\u003eGithub issues\u003c/a\u003e are welcome. Please include tests for new work, and keep the library test coverage at 100%. Please note that the purpose of this module is to expose the API of the \u003ca href=\"https://github.com/uber/h3\"\u003eH3 Core library\u003c/a\u003e, so we will rarely accept new features that are not part of that API. New proposed feature work is more appropriate in the core C library or in a new JS library that depends on \u003ccode\u003eh3-js\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eBefore we can merge your changes, you must agree to the \u003ca href=\"http://cla-assistant.io/uber/h3-js\" rel=\"nofollow\"\u003eUber Contributor License Agreement\u003c/a\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eVersioning\u003c/h2\u003e\u003ca id=\"user-content-versioning\" class=\"anchor\" aria-label=\"Permalink: Versioning\" href=\"#versioning\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ca href=\"https://github.com/uber/h3\"\u003eH3 core library\u003c/a\u003e adheres to \u003ca href=\"http://semver.org/\" rel=\"nofollow\"\u003eSemantic Versioning\u003c/a\u003e. The \u003ccode\u003eh3-js\u003c/code\u003e library has a \u003ccode\u003emajor.minor.patch\u003c/code\u003e version scheme. The major and minor version numbers of \u003ccode\u003eh3-js\u003c/code\u003e are the major and minor version of the bound core library, respectively. The patch version is incremented independently of the core library.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eLegal and Licensing\u003c/h2\u003e\u003ca id=\"user-content-legal-and-licensing\" class=\"anchor\" aria-label=\"Permalink: Legal and Licensing\" href=\"#legal-and-licensing\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003eh3-js\u003c/code\u003e library is licensed under the \u003ca href=\"https://github.com/uber/h3-js/blob/master/LICENSE\"\u003eApache 2.0 License\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eDGGRID Copyright (c) 2015 Southern Oregon University\u003c/p\u003e\n\u003c/article\u003e","loaded":true,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":[{"level":1,"text":"h3-js","anchor":"h3-js","htmlText":"h3-js"},{"level":2,"text":"Install","anchor":"install","htmlText":"Install"},{"level":2,"text":"Usage","anchor":"usage","htmlText":"Usage"},{"level":3,"text":"Import","anchor":"import","htmlText":"Import"},{"level":3,"text":"Core functions","anchor":"core-functions","htmlText":"Core functions"},{"level":3,"text":"Useful algorithms","anchor":"useful-algorithms","htmlText":"Useful algorithms"},{"level":2,"text":"API Reference","anchor":"api-reference","htmlText":"API Reference"},{"level":2,"text":"h3","anchor":"h3","htmlText":"h3"},{"level":3,"text":"h3.UNITS","anchor":"h3units","htmlText":"h3.UNITS"},{"level":3,"text":"h3.POLYGON_TO_CELLS_FLAGS","anchor":"h3polygon_to_cells_flags","htmlText":"h3.POLYGON_TO_CELLS_FLAGS"},{"level":3,"text":"h3.h3IndexToSplitLong(h3Index) ⇒ SplitLong","anchor":"h3h3indextosplitlongh3index--splitlong","htmlText":"h3.h3IndexToSplitLong(h3Index) ⇒ SplitLong"},{"level":3,"text":"h3.splitLongToH3Index(lower, upper) ⇒ H3Index","anchor":"h3splitlongtoh3indexlower-upper--h3index","htmlText":"h3.splitLongToH3Index(lower, upper) ⇒ H3Index"},{"level":3,"text":"h3.isValidCell(h3Index) ⇒ boolean","anchor":"h3isvalidcellh3index--boolean","htmlText":"h3.isValidCell(h3Index) ⇒ boolean"},{"level":3,"text":"h3.isPentagon(h3Index) ⇒ boolean","anchor":"h3ispentagonh3index--boolean","htmlText":"h3.isPentagon(h3Index) ⇒ boolean"},{"level":3,"text":"h3.isResClassIII(h3Index) ⇒ boolean","anchor":"h3isresclassiiih3index--boolean","htmlText":"h3.isResClassIII(h3Index) ⇒ boolean"},{"level":3,"text":"h3.getBaseCellNumber(h3Index) ⇒ number","anchor":"h3getbasecellnumberh3index--number","htmlText":"h3.getBaseCellNumber(h3Index) ⇒ number"},{"level":3,"text":"h3.getIcosahedronFaces(h3Index) ⇒ Array.\u003cnumber\u003e","anchor":"h3geticosahedronfacesh3index--arraynumber","htmlText":"h3.getIcosahedronFaces(h3Index) ⇒ Array.\u0026lt;number\u0026gt;"},{"level":3,"text":"h3.getResolution(h3Index) ⇒ number","anchor":"h3getresolutionh3index--number","htmlText":"h3.getResolution(h3Index) ⇒ number"},{"level":3,"text":"h3.latLngToCell(lat, lng, res) ⇒ H3Index","anchor":"h3latlngtocelllat-lng-res--h3index","htmlText":"h3.latLngToCell(lat, lng, res) ⇒ H3Index"},{"level":3,"text":"h3.cellToLatLng(h3Index) ⇒ CoordPair","anchor":"h3celltolatlngh3index--coordpair","htmlText":"h3.cellToLatLng(h3Index) ⇒ CoordPair"},{"level":3,"text":"h3.cellToBoundary(h3Index, [formatAsGeoJson]) ⇒ Array.\u003cCoordPair\u003e","anchor":"h3celltoboundaryh3index-formatasgeojson--arraycoordpair","htmlText":"h3.cellToBoundary(h3Index, [formatAsGeoJson]) ⇒ Array.\u0026lt;CoordPair\u0026gt;"},{"level":3,"text":"h3.cellToParent(h3Index, res) ⇒ H3Index","anchor":"h3celltoparenth3index-res--h3index","htmlText":"h3.cellToParent(h3Index, res) ⇒ H3Index"},{"level":3,"text":"h3.cellToChildren(h3Index, res) ⇒ Array.\u003cH3Index\u003e","anchor":"h3celltochildrenh3index-res--arrayh3index","htmlText":"h3.cellToChildren(h3Index, res) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.cellToChildrenSize(h3Index, res) ⇒ number","anchor":"h3celltochildrensizeh3index-res--number","htmlText":"h3.cellToChildrenSize(h3Index, res) ⇒ number"},{"level":3,"text":"h3.cellToCenterChild(h3Index, res) ⇒ H3Index","anchor":"h3celltocenterchildh3index-res--h3index","htmlText":"h3.cellToCenterChild(h3Index, res) ⇒ H3Index"},{"level":3,"text":"h3.cellToChildPos(h3Index, parentRes) ⇒ number","anchor":"h3celltochildposh3index-parentres--number","htmlText":"h3.cellToChildPos(h3Index, parentRes) ⇒ number"},{"level":3,"text":"h3.childPosToCell(childPos, h3Index, childRes) ⇒ H3Index","anchor":"h3childpostocellchildpos-h3index-childres--h3index","htmlText":"h3.childPosToCell(childPos, h3Index, childRes) ⇒ H3Index"},{"level":3,"text":"h3.gridDisk(h3Index, ringSize) ⇒ Array.\u003cH3Index\u003e","anchor":"h3griddiskh3index-ringsize--arrayh3index","htmlText":"h3.gridDisk(h3Index, ringSize) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.gridDiskDistances(h3Index, ringSize) ⇒ Array.\u003cArray.\u003cH3Index\u003e\u003e","anchor":"h3griddiskdistancesh3index-ringsize--arrayarrayh3index","htmlText":"h3.gridDiskDistances(h3Index, ringSize) ⇒ Array.\u0026lt;Array.\u0026lt;H3Index\u0026gt;\u0026gt;"},{"level":3,"text":"h3.gridRingUnsafe(h3Index, ringSize) ⇒ Array.\u003cH3Index\u003e","anchor":"h3gridringunsafeh3index-ringsize--arrayh3index","htmlText":"h3.gridRingUnsafe(h3Index, ringSize) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.polygonToCells(coordinates, res, [isGeoJson]) ⇒ Array.\u003cH3Index\u003e","anchor":"h3polygontocellscoordinates-res-isgeojson--arrayh3index","htmlText":"h3.polygonToCells(coordinates, res, [isGeoJson]) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson]) ⇒ Array.\u003cH3Index\u003e","anchor":"h3polygontocellsexperimentalcoordinates-res-flags-isgeojson--arrayh3index","htmlText":"h3.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson]) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson]) ⇒ Array.\u003cArray.\u003cArray.\u003cCoordPair\u003e\u003e\u003e","anchor":"h3cellstomultipolygonh3indexes-formatasgeojson--arrayarrayarraycoordpair","htmlText":"h3.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson]) ⇒ Array.\u0026lt;Array.\u0026lt;Array.\u0026lt;CoordPair\u0026gt;\u0026gt;\u0026gt;"},{"level":3,"text":"h3.compactCells(h3Set) ⇒ Array.\u003cH3Index\u003e","anchor":"h3compactcellsh3set--arrayh3index","htmlText":"h3.compactCells(h3Set) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.uncompactCells(compactedSet, res) ⇒ Array.\u003cH3Index\u003e","anchor":"h3uncompactcellscompactedset-res--arrayh3index","htmlText":"h3.uncompactCells(compactedSet, res) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.areNeighborCells(origin, destination) ⇒ boolean","anchor":"h3areneighborcellsorigin-destination--boolean","htmlText":"h3.areNeighborCells(origin, destination) ⇒ boolean"},{"level":3,"text":"h3.cellsToDirectedEdge(origin, destination) ⇒ H3Index","anchor":"h3cellstodirectededgeorigin-destination--h3index","htmlText":"h3.cellsToDirectedEdge(origin, destination) ⇒ H3Index"},{"level":3,"text":"h3.getDirectedEdgeOrigin(edgeIndex) ⇒ H3Index","anchor":"h3getdirectededgeoriginedgeindex--h3index","htmlText":"h3.getDirectedEdgeOrigin(edgeIndex) ⇒ H3Index"},{"level":3,"text":"h3.getDirectedEdgeDestination(edgeIndex) ⇒ H3Index","anchor":"h3getdirectededgedestinationedgeindex--h3index","htmlText":"h3.getDirectedEdgeDestination(edgeIndex) ⇒ H3Index"},{"level":3,"text":"h3.isValidDirectedEdge(edgeIndex) ⇒ boolean","anchor":"h3isvaliddirectededgeedgeindex--boolean","htmlText":"h3.isValidDirectedEdge(edgeIndex) ⇒ boolean"},{"level":3,"text":"h3.directedEdgeToCells(edgeIndex) ⇒ Array.\u003cH3Index\u003e","anchor":"h3directededgetocellsedgeindex--arrayh3index","htmlText":"h3.directedEdgeToCells(edgeIndex) ⇒ Array.\u0026lt;H3Index\u0026gt;"},{"level":3,"text":"h3.originToDirectedEdges(h3Index) ⇒ 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href="https://camo.githubusercontent.com/a600715befc0911ab9f7e92b65f00fe341bb11ccf21e74acb903e1792d500fdd/68747470733a2f2f756265722e6769746875622e696f2f696d672f68334c6f676f2d636f6c6f722e737667"><img align="right" src="https://camo.githubusercontent.com/a600715befc0911ab9f7e92b65f00fe341bb11ccf21e74acb903e1792d500fdd/68747470733a2f2f756265722e6769746875622e696f2f696d672f68334c6f676f2d636f6c6f722e737667" alt="H3 Logo" width="200" data-canonical-src="https://uber.github.io/img/h3Logo-color.svg" style="max-width: 100%;"></a></p> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">h3-js</h1><a id="user-content-h3-js" class="anchor" aria-label="Permalink: h3-js" href="#h3-js"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><a href="https://github.com/uber/h3-js/actions"><img src="https://github.com/uber/h3-js/workflows/test/badge.svg" alt="Build Status" style="max-width: 100%;"></a> <a href="https://coveralls.io/github/uber/h3-js?branch=master" rel="nofollow"><img src="https://camo.githubusercontent.com/19190d4260616f63bf233c5b0a0017030e371ad46a012ecffda397822f12f95b/68747470733a2f2f636f766572616c6c732e696f2f7265706f732f6769746875622f756265722f68332d6a732f62616467652e7376673f6272616e63683d6d6173746572" alt="Coverage Status" data-canonical-src="https://coveralls.io/repos/github/uber/h3-js/badge.svg?branch=master" style="max-width: 100%;"></a> <a href="/uber/h3-js/blob/master/LICENSE"><img src="https://camo.githubusercontent.com/859a1a0bc85ce8bbd7a730a274fec5c9e77c4726ffdf6aa762a78685e26033a4/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4c6963656e73652d417061636865253230322e302d626c75652e737667" alt="License" data-canonical-src="https://img.shields.io/badge/License-Apache%202.0-blue.svg" style="max-width: 100%;"></a> <a href="https://badge.fury.io/js/h3-js" rel="nofollow"><img src="https://camo.githubusercontent.com/9fc58d6fee1f6dcf99e2a7968f616e8935ab28e43967b75022e678da5b24ceab/68747470733a2f2f62616467652e667572792e696f2f6a732f68332d6a732e737667" alt="npm version" data-canonical-src="https://badge.fury.io/js/h3-js.svg" style="max-width: 100%;"></a> <a href="https://github.com/uber/h3/releases/tag/v4.1.0"><img src="https://camo.githubusercontent.com/1caaad54879f4b0af503c7f0a8d6e1fb65b649e90415182813027af1a7143a41/68747470733a2f2f696d672e736869656c64732e696f2f7374617469632f76313f6c6162656c3d6833253230617069266d6573736167653d76342e312e3026636f6c6f723d626c7565" alt="H3 Version" data-canonical-src="https://img.shields.io/static/v1?label=h3%20api&message=v4.1.0&color=blue" style="max-width: 100%;"></a></p> <p dir="auto">The <code>h3-js</code> library provides a pure-JavaScript version of the <a href="https://github.com/uber/h3">H3 Core Library</a>, a hexagon-based geographic grid system. It can be used either in Node >= 6 or in the browser. The core library is transpiled from C using <a href="http://kripken.github.io/emscripten-site" rel="nofollow">emscripten</a>, offering full parity with the C API and highly efficient operations.</p> <p dir="auto">For more information on H3 and for the full API documentation, please see the <a href="https://h3geo.org" rel="nofollow">H3 Documentation</a>.</p> <ul dir="auto"> <li>Post <strong>bug reports or feature requests</strong> to the <a href="https://github.com/uber/h3-js/issues">Github Issues page</a></li> <li>Ask <strong>questions</strong> by posting to the <a href="https://stackoverflow.com/questions/tagged/h3" rel="nofollow">H3 tag on StackOverflow</a></li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Install</h2><a id="user-content-install" class="anchor" aria-label="Permalink: Install" href="#install"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="npm install h3-js"><pre class="notranslate"><code>npm install h3-js </code></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Usage</h2><a id="user-content-usage" class="anchor" aria-label="Permalink: Usage" href="#usage"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <blockquote> <p dir="auto">🎉 <strong>Note:</strong> The following usage docs apply to <strong>H3 v4</strong>, which was released on August 23, 2022.</p> <ul dir="auto"> <li>For v3 docs, <a href="https://github.com/uber/h3-js/blob/v3.7.2/README.md">see the latest v3.x.x release</a>.</li> <li>For breaking changes in v4, <a href="/uber/h3-js/blob/master/CHANGELOG.md">see the CHANGELOG</a>. In particular, most <a href="https://h3geo.org/docs/library/migration-3.x/functions" rel="nofollow">function names have changed</a>.</li> </ul> </blockquote> <p dir="auto">The library uses ES6 modules. Bundles for Node and the browser are built to the <code>dist</code> folder.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Import</h3><a id="user-content-import" class="anchor" aria-label="Permalink: Import" href="#import"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">ES6 usage:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="import {latLngToCell} from "h3-js";"><pre><span class="pl-k">import</span> <span class="pl-kos">{</span><span class="pl-s1">latLngToCell</span><span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">"h3-js"</span><span class="pl-kos">;</span></pre></div> <p dir="auto">CommonJS usage:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="const h3 = require("h3-js");"><pre><span class="pl-k">const</span> <span class="pl-s1">h3</span> <span class="pl-c1">=</span> <span class="pl-en">require</span><span class="pl-kos">(</span><span class="pl-s">"h3-js"</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Pre-bundled script (library is available as an <code>h3</code> global):</p> <div class="highlight highlight-text-html-basic notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="<script src="https://unpkg.com/h3-js"></script>"><pre><span class="pl-kos"><</span><span class="pl-ent">script</span> <span class="pl-c1">src</span>="<span class="pl-s">https://unpkg.com/h3-js</span>"<span class="pl-kos">></span><span class="pl-kos"></</span><span class="pl-ent">script</span><span class="pl-kos">></span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Core functions</h3><a id="user-content-core-functions" class="anchor" aria-label="Permalink: Core functions" href="#core-functions"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// Convert a lat/lng point to a hexagon index at resolution 7 const h3Index = h3.latLngToCell(37.3615593, -122.0553238, 7); // -> '87283472bffffff' // Get the center of the hexagon const hexCenterCoordinates = h3.cellToLatLng(h3Index); // -> [37.35171820183272, -122.05032565263946] // Get the vertices of the hexagon const hexBoundary = h3.cellToBoundary(h3Index); // -> [ [37.341099093235684, -122.04156135164334 ], ...]"><pre><span class="pl-c">// Convert a lat/lng point to a hexagon index at resolution 7</span> <span class="pl-k">const</span> <span class="pl-s1">h3Index</span> <span class="pl-c1">=</span> <span class="pl-s1">h3</span><span class="pl-kos">.</span><span class="pl-en">latLngToCell</span><span class="pl-kos">(</span><span class="pl-c1">37.3615593</span><span class="pl-kos">,</span> <span class="pl-c1">-</span><span class="pl-c1">122.0553238</span><span class="pl-kos">,</span> <span class="pl-c1">7</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// -> '87283472bffffff'</span> <span class="pl-c">// Get the center of the hexagon</span> <span class="pl-k">const</span> <span class="pl-s1">hexCenterCoordinates</span> <span class="pl-c1">=</span> <span class="pl-s1">h3</span><span class="pl-kos">.</span><span class="pl-en">cellToLatLng</span><span class="pl-kos">(</span><span class="pl-s1">h3Index</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// -> [37.35171820183272, -122.05032565263946]</span> <span class="pl-c">// Get the vertices of the hexagon</span> <span class="pl-k">const</span> <span class="pl-s1">hexBoundary</span> <span class="pl-c1">=</span> <span class="pl-s1">h3</span><span class="pl-kos">.</span><span class="pl-en">cellToBoundary</span><span class="pl-kos">(</span><span class="pl-s1">h3Index</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// -> [ [37.341099093235684, -122.04156135164334 ], ...]</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Useful algorithms</h3><a id="user-content-useful-algorithms" class="anchor" aria-label="Permalink: Useful algorithms" href="#useful-algorithms"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// Get all neighbors within 1 step of the hexagon const disk = h3.gridDisk(h3Index, 1); // -> ['87283472bffffff', '87283472affffff', ...] // Get the set of hexagons within a polygon const polygon = [ [37.813318999983238, -122.4089866999972145], [37.7198061999978478, -122.3544736999993603], [37.8151571999998453, -122.4798767000009008] ]; const hexagons = h3.polygonToCells(polygon, 7); // -> ['872830828ffffff', '87283082effffff', ...] // Get the outline of a set of hexagons, as a GeoJSON-style MultiPolygon const coordinates = h3.cellsToMultiPolygon(hexagons, true); // -> [[[ // [-122.37681938644465, 37.76546768434345], // [-122.3856345540363,37.776004200673846], // ... // ]]]"><pre><span class="pl-c">// Get all neighbors within 1 step of the hexagon</span> <span class="pl-k">const</span> <span class="pl-s1">disk</span> <span class="pl-c1">=</span> <span class="pl-s1">h3</span><span class="pl-kos">.</span><span class="pl-en">gridDisk</span><span class="pl-kos">(</span><span class="pl-s1">h3Index</span><span class="pl-kos">,</span> <span class="pl-c1">1</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// -> ['87283472bffffff', '87283472affffff', ...]</span> <span class="pl-c">// Get the set of hexagons within a polygon</span> <span class="pl-k">const</span> <span class="pl-s1">polygon</span> <span class="pl-c1">=</span> <span class="pl-kos">[</span> <span class="pl-kos">[</span><span class="pl-c1">37.813318999983238</span><span class="pl-kos">,</span> <span class="pl-c1">-</span><span class="pl-c1">122.4089866999972145</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-kos">[</span><span class="pl-c1">37.7198061999978478</span><span class="pl-kos">,</span> <span class="pl-c1">-</span><span class="pl-c1">122.3544736999993603</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-kos">[</span><span class="pl-c1">37.8151571999998453</span><span class="pl-kos">,</span> <span class="pl-c1">-</span><span class="pl-c1">122.4798767000009008</span><span class="pl-kos">]</span> <span class="pl-kos">]</span><span class="pl-kos">;</span> <span class="pl-k">const</span> <span class="pl-s1">hexagons</span> <span class="pl-c1">=</span> <span class="pl-s1">h3</span><span class="pl-kos">.</span><span class="pl-en">polygonToCells</span><span class="pl-kos">(</span><span class="pl-s1">polygon</span><span class="pl-kos">,</span> <span class="pl-c1">7</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// -> ['872830828ffffff', '87283082effffff', ...]</span> <span class="pl-c">// Get the outline of a set of hexagons, as a GeoJSON-style MultiPolygon</span> <span class="pl-k">const</span> <span class="pl-s1">coordinates</span> <span class="pl-c1">=</span> <span class="pl-s1">h3</span><span class="pl-kos">.</span><span class="pl-en">cellsToMultiPolygon</span><span class="pl-kos">(</span><span class="pl-s1">hexagons</span><span class="pl-kos">,</span> <span class="pl-c1">true</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// -> [[[</span> <span class="pl-c">// [-122.37681938644465, 37.76546768434345],</span> <span class="pl-c">// [-122.3856345540363,37.776004200673846],</span> <span class="pl-c">// ...</span> <span class="pl-c">// ]]]</span></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">API Reference</h2><a id="user-content-api-reference" class="anchor" aria-label="Permalink: API Reference" href="#api-reference"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><a name="user-content-module_h3"></a></p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">h3</h2><a id="user-content-h3" class="anchor" aria-label="Permalink: h3" href="#h3"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li><a href="#module_h3">h3</a> <ul dir="auto"> <li><a href="#module_h3.UNITS">.UNITS</a></li> <li><a href="#module_h3.POLYGON_TO_CELLS_FLAGS">.POLYGON_TO_CELLS_FLAGS</a></li> <li><a href="#module_h3.h3IndexToSplitLong">.h3IndexToSplitLong(h3Index)</a> ⇒ <code>SplitLong</code></li> <li><a href="#module_h3.splitLongToH3Index">.splitLongToH3Index(lower, upper)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.isValidCell">.isValidCell(h3Index)</a> ⇒ <code>boolean</code></li> <li><a href="#module_h3.isPentagon">.isPentagon(h3Index)</a> ⇒ <code>boolean</code></li> <li><a href="#module_h3.isResClassIII">.isResClassIII(h3Index)</a> ⇒ <code>boolean</code></li> <li><a href="#module_h3.getBaseCellNumber">.getBaseCellNumber(h3Index)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.getIcosahedronFaces">.getIcosahedronFaces(h3Index)</a> ⇒ <code>Array.<number></code></li> <li><a href="#module_h3.getResolution">.getResolution(h3Index)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.latLngToCell">.latLngToCell(lat, lng, res)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.cellToLatLng">.cellToLatLng(h3Index)</a> ⇒ <code>CoordPair</code></li> <li><a href="#module_h3.cellToBoundary">.cellToBoundary(h3Index, [formatAsGeoJson])</a> ⇒ <code>Array.<CoordPair></code></li> <li><a href="#module_h3.cellToParent">.cellToParent(h3Index, res)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.cellToChildren">.cellToChildren(h3Index, res)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.cellToChildrenSize">.cellToChildrenSize(h3Index, res)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.cellToCenterChild">.cellToCenterChild(h3Index, res)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.cellToChildPos">.cellToChildPos(h3Index, parentRes)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.childPosToCell">.childPosToCell(childPos, h3Index, childRes)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.gridDisk">.gridDisk(h3Index, ringSize)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.gridDiskDistances">.gridDiskDistances(h3Index, ringSize)</a> ⇒ <code>Array.<Array.<H3Index>></code></li> <li><a href="#module_h3.gridRingUnsafe">.gridRingUnsafe(h3Index, ringSize)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.polygonToCells">.polygonToCells(coordinates, res, [isGeoJson])</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.polygonToCellsExperimental">.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson])</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.cellsToMultiPolygon">.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson])</a> ⇒ <code>Array.<Array.<Array.<CoordPair>>></code></li> <li><a href="#module_h3.compactCells">.compactCells(h3Set)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.uncompactCells">.uncompactCells(compactedSet, res)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.areNeighborCells">.areNeighborCells(origin, destination)</a> ⇒ <code>boolean</code></li> <li><a href="#module_h3.cellsToDirectedEdge">.cellsToDirectedEdge(origin, destination)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.getDirectedEdgeOrigin">.getDirectedEdgeOrigin(edgeIndex)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.getDirectedEdgeDestination">.getDirectedEdgeDestination(edgeIndex)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.isValidDirectedEdge">.isValidDirectedEdge(edgeIndex)</a> ⇒ <code>boolean</code></li> <li><a href="#module_h3.directedEdgeToCells">.directedEdgeToCells(edgeIndex)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.originToDirectedEdges">.originToDirectedEdges(h3Index)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.directedEdgeToBoundary">.directedEdgeToBoundary(edgeIndex, [formatAsGeoJson])</a> ⇒ <code>Array.<CoordPair></code></li> <li><a href="#module_h3.gridDistance">.gridDistance(origin, destination)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.gridPathCells">.gridPathCells(origin, destination)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.cellToLocalIj">.cellToLocalIj(origin, destination)</a> ⇒ <code>CoordIJ</code></li> <li><a href="#module_h3.localIjToCell">.localIjToCell(origin, coords)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.greatCircleDistance">.greatCircleDistance(latLng1, latLng2, unit)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.cellArea">.cellArea(h3Index, unit)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.edgeLength">.edgeLength(edge, unit)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.getHexagonAreaAvg">.getHexagonAreaAvg(res, unit)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.getHexagonEdgeLengthAvg">.getHexagonEdgeLengthAvg(res, unit)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.cellToVertex">.cellToVertex(h3Index, vertexNum)</a> ⇒ <code>H3Index</code></li> <li><a href="#module_h3.cellToVertexes">.cellToVertexes(h3Index)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.vertexToLatLng">.vertexToLatLng(h3Index)</a> ⇒ <code>CoordPair</code></li> <li><a href="#module_h3.isValidVertex">.isValidVertex(h3Index)</a> ⇒ <code>boolean</code></li> <li><a href="#module_h3.getNumCells">.getNumCells(res)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.getRes0Cells">.getRes0Cells()</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.getPentagons">.getPentagons(res)</a> ⇒ <code>Array.<H3Index></code></li> <li><a href="#module_h3.degsToRads">.degsToRads(deg)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.radsToDegs">.radsToDegs(rad)</a> ⇒ <code>number</code></li> <li><a href="#module_h3.H3Index">.H3Index</a> : <code>string</code></li> <li><a href="#module_h3.H3IndexInput">.H3IndexInput</a> : <code>string</code> | <code>Array.<number></code></li> <li><a href="#module_h3.CoordIJ">.CoordIJ</a></li> <li><a href="#module_h3.H3Error">.H3Error</a></li> <li><a href="#module_h3.CoordPair">.CoordPair</a> : <code>Array.<number></code></li> <li><a href="#module_h3.SplitLong">.SplitLong</a> : <code>Array.<number></code></li> </ul> </li> </ul> <hr> <p dir="auto"><a name="user-content-module_h3.units"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.UNITS</h3><a id="user-content-h3units" class="anchor" aria-label="Permalink: h3.UNITS" href="#h3units"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Length/Area units</p> <p dir="auto"><strong>Properties</strong></p> <markdown-accessiblity-table><table> <thead> <tr> <th>Name</th> <th>Type</th> </tr> </thead> <tbody> <tr> <td>m</td> <td><code>string</code></td> </tr> <tr> <td>m2</td> <td><code>string</code></td> </tr> <tr> <td>km</td> <td><code>string</code></td> </tr> <tr> <td>km2</td> <td><code>string</code></td> </tr> <tr> <td>rads</td> <td><code>string</code></td> </tr> <tr> <td>rads2</td> <td><code>string</code></td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.polygon_to_cells_flags"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.POLYGON_TO_CELLS_FLAGS</h3><a id="user-content-h3polygon_to_cells_flags" class="anchor" aria-label="Permalink: h3.POLYGON_TO_CELLS_FLAGS" href="#h3polygon_to_cells_flags"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Mode flags for polygonToCells</p> <p dir="auto"><strong>Properties</strong></p> <markdown-accessiblity-table><table> <thead> <tr> <th>Name</th> <th>Type</th> </tr> </thead> <tbody> <tr> <td>containmentCenter</td> <td><code>string</code></td> </tr> <tr> <td>containmentFull</td> <td><code>string</code></td> </tr> <tr> <td>containmentOverlapping</td> <td><code>string</code></td> </tr> <tr> <td>containmentOverlappingBbox</td> <td><code>string</code></td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.h3indextosplitlong"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.h3IndexToSplitLong(h3Index) ⇒ <code>SplitLong</code></h3><a id="user-content-h3h3indextosplitlongh3index--splitlong" class="anchor" aria-label="Permalink: h3.h3IndexToSplitLong(h3Index) ⇒ SplitLong" href="#h3h3indextosplitlongh3index--splitlong"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Convert an H3 index (64-bit hexidecimal string) into a "split long" - a pair of 32-bit ints</p> <p dir="auto"><strong>Returns</strong>: <code>SplitLong</code> - A two-element array with 32 lower bits and 32 upper bits</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to check</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.splitlongtoh3index"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.splitLongToH3Index(lower, upper) ⇒ <code>H3Index</code></h3><a id="user-content-h3splitlongtoh3indexlower-upper--h3index" class="anchor" aria-label="Permalink: h3.splitLongToH3Index(lower, upper) ⇒ H3Index" href="#h3splitlongtoh3indexlower-upper--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get a H3 index string from a split long (pair of 32-bit ints)</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>lower</td> <td><code>number</code></td> <td>Lower 32 bits</td> </tr> <tr> <td>upper</td> <td><code>number</code></td> <td>Upper 32 bits</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.isvalidcell"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.isValidCell(h3Index) ⇒ <code>boolean</code></h3><a id="user-content-h3isvalidcellh3index--boolean" class="anchor" aria-label="Permalink: h3.isValidCell(h3Index) ⇒ boolean" href="#h3isvalidcellh3index--boolean"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Whether a given string represents a valid H3 index</p> <p dir="auto"><strong>Returns</strong>: <code>boolean</code> - Whether the index is valid</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to check</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.ispentagon"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.isPentagon(h3Index) ⇒ <code>boolean</code></h3><a id="user-content-h3ispentagonh3index--boolean" class="anchor" aria-label="Permalink: h3.isPentagon(h3Index) ⇒ boolean" href="#h3ispentagonh3index--boolean"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Whether the given H3 index is a pentagon</p> <p dir="auto"><strong>Returns</strong>: <code>boolean</code> - isPentagon</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to check</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.isresclassiii"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.isResClassIII(h3Index) ⇒ <code>boolean</code></h3><a id="user-content-h3isresclassiiih3index--boolean" class="anchor" aria-label="Permalink: h3.isResClassIII(h3Index) ⇒ boolean" href="#h3isresclassiiih3index--boolean"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Whether the given H3 index is in a Class III resolution (rotated versus the icosahedron and subject to shape distortion adding extra points on icosahedron edges, making them not true hexagons).</p> <p dir="auto"><strong>Returns</strong>: <code>boolean</code> - isResClassIII</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to check</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.getbasecellnumber"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getBaseCellNumber(h3Index) ⇒ <code>number</code></h3><a id="user-content-h3getbasecellnumberh3index--number" class="anchor" aria-label="Permalink: h3.getBaseCellNumber(h3Index) ⇒ number" href="#h3getbasecellnumberh3index--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the number of the base cell for a given H3 index</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Index of the base cell (0-121)</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get the base cell for</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.geticosahedronfaces"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getIcosahedronFaces(h3Index) ⇒ <code>Array.<number></code></h3><a id="user-content-h3geticosahedronfacesh3index--arraynumber" class="anchor" aria-label="Permalink: h3.getIcosahedronFaces(h3Index) ⇒ Array.<number>" href="#h3geticosahedronfacesh3index--arraynumber"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the indices of all icosahedron faces intersected by a given H3 index</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<number></code> - Indices (0-19) of all intersected faces<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get faces for</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.getresolution"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getResolution(h3Index) ⇒ <code>number</code></h3><a id="user-content-h3getresolutionh3index--number" class="anchor" aria-label="Permalink: h3.getResolution(h3Index) ⇒ number" href="#h3getresolutionh3index--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Returns the resolution of an H3 index</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - The number (0-15) resolution, or -1 if invalid</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get resolution</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.latlngtocell"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.latLngToCell(lat, lng, res) ⇒ <code>H3Index</code></h3><a id="user-content-h3latlngtocelllat-lng-res--h3index" class="anchor" aria-label="Permalink: h3.latLngToCell(lat, lng, res) ⇒ H3Index" href="#h3latlngtocelllat-lng-res--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the hexagon containing a lat,lon point</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>lat</td> <td><code>number</code></td> <td>Latitude of point</td> </tr> <tr> <td>lng</td> <td><code>number</code></td> <td>Longtitude of point</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Resolution of hexagons to return</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltolatlng"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToLatLng(h3Index) ⇒ <code>CoordPair</code></h3><a id="user-content-h3celltolatlngh3index--coordpair" class="anchor" aria-label="Permalink: h3.cellToLatLng(h3Index) ⇒ CoordPair" href="#h3celltolatlngh3index--coordpair"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the lat,lon center of a given hexagon</p> <p dir="auto"><strong>Returns</strong>: <code>CoordPair</code> - Point as a [lat, lng] pair<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltoboundary"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToBoundary(h3Index, [formatAsGeoJson]) ⇒ <code>Array.<CoordPair></code></h3><a id="user-content-h3celltoboundaryh3index-formatasgeojson--arraycoordpair" class="anchor" aria-label="Permalink: h3.cellToBoundary(h3Index, [formatAsGeoJson]) ⇒ Array.<CoordPair>" href="#h3celltoboundaryh3index-formatasgeojson--arraycoordpair"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the vertices of a given hexagon (or pentagon), as an array of [lat, lng] points. For pentagons and hexagons on the edge of an icosahedron face, this function may return up to 10 vertices.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<CoordPair></code> - Array of [lat, lng] pairs<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index</td> </tr> <tr> <td>[formatAsGeoJson]</td> <td><code>boolean</code></td> <td>Whether to provide GeoJSON output: [lng, lat], closed loops</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltoparent"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToParent(h3Index, res) ⇒ <code>H3Index</code></h3><a id="user-content-h3celltoparenth3index-res--h3index" class="anchor" aria-label="Permalink: h3.cellToParent(h3Index, res) ⇒ H3Index" href="#h3celltoparenth3index-res--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the parent of the given hexagon at a particular resolution</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index of parent, or null for invalid input<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get parent for</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Resolution of hexagon to return</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltochildren"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToChildren(h3Index, res) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3celltochildrenh3index-res--arrayh3index" class="anchor" aria-label="Permalink: h3.cellToChildren(h3Index, res) ⇒ Array.<H3Index>" href="#h3celltochildrenh3index-res--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the children/descendents of the given hexagon at a particular resolution</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - H3 indexes of children, or empty array for invalid input<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If resolution is invalid or output is too large for JS</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get children for</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Resolution of hexagons to return</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltochildrensize"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToChildrenSize(h3Index, res) ⇒ <code>number</code></h3><a id="user-content-h3celltochildrensizeh3index-res--number" class="anchor" aria-label="Permalink: h3.cellToChildrenSize(h3Index, res) ⇒ number" href="#h3celltochildrensizeh3index-res--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the number of children for a cell at a given resolution</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Number of children at res for the given cell<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If cell or parentRes are invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get child count for</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Child resolution</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltocenterchild"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToCenterChild(h3Index, res) ⇒ <code>H3Index</code></h3><a id="user-content-h3celltocenterchildh3index-res--h3index" class="anchor" aria-label="Permalink: h3.cellToCenterChild(h3Index, res) ⇒ H3Index" href="#h3celltocenterchildh3index-res--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the center child of the given hexagon at a particular resolution</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index of child, or null for invalid input<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If resolution is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get center child for</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Resolution of cell to return</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltochildpos"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToChildPos(h3Index, parentRes) ⇒ <code>number</code></h3><a id="user-content-h3celltochildposh3index-parentres--number" class="anchor" aria-label="Permalink: h3.cellToChildPos(h3Index, parentRes) ⇒ number" href="#h3celltochildposh3index-parentres--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the position of the cell within an ordered list of all children of the cell's parent at the specified resolution.</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Position of child within parent at parentRes<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If cell or parentRes are invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index to get child pos for</td> </tr> <tr> <td>parentRes</td> <td><code>number</code></td> <td>Resolution of reference parent</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.childpostocell"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.childPosToCell(childPos, h3Index, childRes) ⇒ <code>H3Index</code></h3><a id="user-content-h3childpostocellchildpos-h3index-childres--h3index" class="anchor" aria-label="Permalink: h3.childPosToCell(childPos, h3Index, childRes) ⇒ H3Index" href="#h3childpostocellchildpos-h3index-childres--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the child cell at a given position within an ordered list of all children at the specified resolution</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index of child<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>childPos</td> <td><code>number</code></td> <td>Position of the child cell to get</td> </tr> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index of the parent cell</td> </tr> <tr> <td>childRes</td> <td><code>number</code></td> <td>Resolution of child cell to return</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.griddisk"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.gridDisk(h3Index, ringSize) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3griddiskh3index-ringsize--arrayh3index" class="anchor" aria-label="Permalink: h3.gridDisk(h3Index, ringSize) ⇒ Array.<H3Index>" href="#h3griddiskh3index-ringsize--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all hexagons in a k-ring around a given center. The order of the hexagons is undefined.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - H3 indexes for all hexagons in ring<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid or output is too large for JS</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index of center hexagon</td> </tr> <tr> <td>ringSize</td> <td><code>number</code></td> <td>Radius of k-ring</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.griddiskdistances"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.gridDiskDistances(h3Index, ringSize) ⇒ <code>Array.<Array.<H3Index>></code></h3><a id="user-content-h3griddiskdistancesh3index-ringsize--arrayarrayh3index" class="anchor" aria-label="Permalink: h3.gridDiskDistances(h3Index, ringSize) ⇒ Array.<Array.<H3Index>>" href="#h3griddiskdistancesh3index-ringsize--arrayarrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all hexagons in a k-ring around a given center, in an array of arrays ordered by distance from the origin. The order of the hexagons within each ring is undefined.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<Array.<H3Index>></code> - Array of arrays with H3 indexes for all hexagons each ring<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid or output is too large for JS</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index of center hexagon</td> </tr> <tr> <td>ringSize</td> <td><code>number</code></td> <td>Radius of k-ring</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.gridringunsafe"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.gridRingUnsafe(h3Index, ringSize) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3gridringunsafeh3index-ringsize--arrayh3index" class="anchor" aria-label="Permalink: h3.gridRingUnsafe(h3Index, ringSize) ⇒ Array.<H3Index>" href="#h3gridringunsafeh3index-ringsize--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all hexagons in a hollow hexagonal ring centered at origin with sides of a given length. Unlike gridDisk, this function will throw an error if there is a pentagon anywhere in the ring.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - H3 indexes for all hexagons in ring<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>Error</code> If the algorithm could not calculate the ring</li> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index of center hexagon</td> </tr> <tr> <td>ringSize</td> <td><code>number</code></td> <td>Radius of ring</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.polygontocells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.polygonToCells(coordinates, res, [isGeoJson]) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3polygontocellscoordinates-res-isgeojson--arrayh3index" class="anchor" aria-label="Permalink: h3.polygonToCells(coordinates, res, [isGeoJson]) ⇒ Array.<H3Index>" href="#h3polygontocellscoordinates-res-isgeojson--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all hexagons with centers contained in a given polygon. The polygon is specified with GeoJson semantics as an array of loops. Each loop is an array of [lat, lng] pairs (or [lng, lat] if isGeoJson is specified). The first loop is the perimeter of the polygon, and subsequent loops are expected to be holes.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - H3 indexes for all hexagons in polygon<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid or output is too large for JS</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>coordinates</td> <td><code>Array.<Array.<number>></code> | <code>Array.<Array.<Array.<number>>></code></td> <td>Array of loops, or a single loop</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Resolution of hexagons to return</td> </tr> <tr> <td>[isGeoJson]</td> <td><code>boolean</code></td> <td>Whether to expect GeoJson-style [lng, lat] pairs instead of [lat, lng]</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.polygontocellsexperimental"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson]) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3polygontocellsexperimentalcoordinates-res-flags-isgeojson--arrayh3index" class="anchor" aria-label="Permalink: h3.polygonToCellsExperimental(coordinates, res, flags, [isGeoJson]) ⇒ Array.<H3Index>" href="#h3polygontocellsexperimentalcoordinates-res-flags-isgeojson--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all hexagons with centers contained in a given polygon. The polygon is specified with GeoJson semantics as an array of loops. Each loop is an array of [lat, lng] pairs (or [lng, lat] if isGeoJson is specified). The first loop is the perimeter of the polygon, and subsequent loops are expected to be holes.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - H3 indexes for all hexagons in polygon<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid or output is too large for JS</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>coordinates</td> <td><code>Array.<Array.<number>></code> | <code>Array.<Array.<Array.<number>>></code></td> <td>Array of loops, or a single loop</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>Resolution of hexagons to return</td> </tr> <tr> <td>flags</td> <td><code>string</code></td> <td>Value from POLYGON_TO_CELLS_FLAGS</td> </tr> <tr> <td>[isGeoJson]</td> <td><code>boolean</code></td> <td>Whether to expect GeoJson-style [lng, lat] pairs instead of [lat, lng]</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.cellstomultipolygon"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson]) ⇒ <code>Array.<Array.<Array.<CoordPair>>></code></h3><a id="user-content-h3cellstomultipolygonh3indexes-formatasgeojson--arrayarrayarraycoordpair" class="anchor" aria-label="Permalink: h3.cellsToMultiPolygon(h3Indexes, [formatAsGeoJson]) ⇒ Array.<Array.<Array.<CoordPair>>>" href="#h3cellstomultipolygonh3indexes-formatasgeojson--arrayarrayarraycoordpair"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the outlines of a set of H3 hexagons, returned in GeoJSON MultiPolygon format (an array of polygons, each with an array of loops, each an array of coordinates). Coordinates are returned as [lat, lng] pairs unless GeoJSON is requested.</p> <p dir="auto">It is the responsibility of the caller to ensure that all hexagons in the set have the same resolution and that the set contains no duplicates. Behavior is undefined if duplicates or multiple resolutions are present, and the algorithm may produce unexpected or invalid polygons.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<Array.<Array.<CoordPair>>></code> - MultiPolygon-style output.<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Indexes</td> <td><code>Array.<H3IndexInput></code></td> <td>H3 indexes to get outlines for</td> </tr> <tr> <td>[formatAsGeoJson]</td> <td><code>boolean</code></td> <td>Whether to provide GeoJSON output: [lng, lat], closed loops</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.compactcells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.compactCells(h3Set) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3compactcellsh3set--arrayh3index" class="anchor" aria-label="Permalink: h3.compactCells(h3Set) ⇒ Array.<H3Index>" href="#h3compactcellsh3set--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Compact a set of hexagons of the same resolution into a set of hexagons across multiple levels that represents the same area.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - Compacted H3 indexes<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid (e.g. duplicate hexagons)</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Set</td> <td><code>Array.<H3IndexInput></code></td> <td>H3 indexes to compact</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.uncompactcells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.uncompactCells(compactedSet, res) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3uncompactcellscompactedset-res--arrayh3index" class="anchor" aria-label="Permalink: h3.uncompactCells(compactedSet, res) ⇒ Array.<H3Index>" href="#h3uncompactcellscompactedset-res--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Uncompact a compacted set of hexagons to hexagons of the same resolution</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - The uncompacted H3 indexes<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid (e.g. invalid resolution)</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>compactedSet</td> <td><code>Array.<H3IndexInput></code></td> <td>H3 indexes to uncompact</td> </tr> <tr> <td>res</td> <td><code>number</code></td> <td>The resolution to uncompact to</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.areneighborcells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.areNeighborCells(origin, destination) ⇒ <code>boolean</code></h3><a id="user-content-h3areneighborcellsorigin-destination--boolean" class="anchor" aria-label="Permalink: h3.areNeighborCells(origin, destination) ⇒ boolean" href="#h3areneighborcellsorigin-destination--boolean"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Whether two H3 indexes are neighbors (share an edge)</p> <p dir="auto"><strong>Returns</strong>: <code>boolean</code> - Whether the hexagons share an edge<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>origin</td> <td><code>H3IndexInput</code></td> <td>Origin hexagon index</td> </tr> <tr> <td>destination</td> <td><code>H3IndexInput</code></td> <td>Destination hexagon index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.cellstodirectededge"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellsToDirectedEdge(origin, destination) ⇒ <code>H3Index</code></h3><a id="user-content-h3cellstodirectededgeorigin-destination--h3index" class="anchor" aria-label="Permalink: h3.cellsToDirectedEdge(origin, destination) ⇒ H3Index" href="#h3cellstodirectededgeorigin-destination--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get an H3 index representing a unidirectional edge for a given origin and destination</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index of the edge, or null if no edge is shared<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>origin</td> <td><code>H3IndexInput</code></td> <td>Origin hexagon index</td> </tr> <tr> <td>destination</td> <td><code>H3IndexInput</code></td> <td>Destination hexagon index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.getdirectededgeorigin"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getDirectedEdgeOrigin(edgeIndex) ⇒ <code>H3Index</code></h3><a id="user-content-h3getdirectededgeoriginedgeindex--h3index" class="anchor" aria-label="Permalink: h3.getDirectedEdgeOrigin(edgeIndex) ⇒ H3Index" href="#h3getdirectededgeoriginedgeindex--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the origin hexagon from an H3 index representing a unidirectional edge</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index of the edge origin<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>edgeIndex</td> <td><code>H3IndexInput</code></td> <td>H3 index of the edge</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.getdirectededgedestination"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getDirectedEdgeDestination(edgeIndex) ⇒ <code>H3Index</code></h3><a id="user-content-h3getdirectededgedestinationedgeindex--h3index" class="anchor" aria-label="Permalink: h3.getDirectedEdgeDestination(edgeIndex) ⇒ H3Index" href="#h3getdirectededgedestinationedgeindex--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the destination hexagon from an H3 index representing a unidirectional edge</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index of the edge destination<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>edgeIndex</td> <td><code>H3IndexInput</code></td> <td>H3 index of the edge</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.isvaliddirectededge"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.isValidDirectedEdge(edgeIndex) ⇒ <code>boolean</code></h3><a id="user-content-h3isvaliddirectededgeedgeindex--boolean" class="anchor" aria-label="Permalink: h3.isValidDirectedEdge(edgeIndex) ⇒ boolean" href="#h3isvaliddirectededgeedgeindex--boolean"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Whether the input is a valid unidirectional edge</p> <p dir="auto"><strong>Returns</strong>: <code>boolean</code> - Whether the index is valid</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>edgeIndex</td> <td><code>H3IndexInput</code></td> <td>H3 index of the edge</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.directededgetocells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.directedEdgeToCells(edgeIndex) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3directededgetocellsedgeindex--arrayh3index" class="anchor" aria-label="Permalink: h3.directedEdgeToCells(edgeIndex) ⇒ Array.<H3Index>" href="#h3directededgetocellsedgeindex--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the [origin, destination] pair represented by a unidirectional edge</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - [origin, destination] pair as H3 indexes<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>edgeIndex</td> <td><code>H3IndexInput</code></td> <td>H3 index of the edge</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.origintodirectededges"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.originToDirectedEdges(h3Index) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3origintodirectededgesh3index--arrayh3index" class="anchor" aria-label="Permalink: h3.originToDirectedEdges(h3Index) ⇒ Array.<H3Index>" href="#h3origintodirectededgesh3index--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all of the unidirectional edges with the given H3 index as the origin (i.e. an edge to every neighbor)</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - List of unidirectional edges<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index of the origin hexagon</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.directededgetoboundary"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.directedEdgeToBoundary(edgeIndex, [formatAsGeoJson]) ⇒ <code>Array.<CoordPair></code></h3><a id="user-content-h3directededgetoboundaryedgeindex-formatasgeojson--arraycoordpair" class="anchor" aria-label="Permalink: h3.directedEdgeToBoundary(edgeIndex, [formatAsGeoJson]) ⇒ Array.<CoordPair>" href="#h3directededgetoboundaryedgeindex-formatasgeojson--arraycoordpair"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the vertices of a given edge as an array of [lat, lng] points. Note that for edges that cross the edge of an icosahedron face, this may return 3 coordinates.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<CoordPair></code> - Array of geo coordinate pairs<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>edgeIndex</td> <td><code>H3IndexInput</code></td> <td>H3 index of the edge</td> </tr> <tr> <td>[formatAsGeoJson]</td> <td><code>boolean</code></td> <td>Whether to provide GeoJSON output: [lng, lat]</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.griddistance"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.gridDistance(origin, destination) ⇒ <code>number</code></h3><a id="user-content-h3griddistanceorigin-destination--number" class="anchor" aria-label="Permalink: h3.gridDistance(origin, destination) ⇒ number" href="#h3griddistanceorigin-destination--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the grid distance between two hex indexes. This function may fail to find the distance between two indexes if they are very far apart or on opposite sides of a pentagon.</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Distance between hexagons<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid or the distance could not be calculated</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>origin</td> <td><code>H3IndexInput</code></td> <td>Origin hexagon index</td> </tr> <tr> <td>destination</td> <td><code>H3IndexInput</code></td> <td>Destination hexagon index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.gridpathcells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.gridPathCells(origin, destination) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3gridpathcellsorigin-destination--arrayh3index" class="anchor" aria-label="Permalink: h3.gridPathCells(origin, destination) ⇒ Array.<H3Index>" href="#h3gridpathcellsorigin-destination--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Given two H3 indexes, return the line of indexes between them (inclusive).</p> <p dir="auto">This function may fail to find the line between two indexes, for example if they are very far apart. It may also fail when finding distances for indexes on opposite sides of a pentagon.</p> <p dir="auto">Notes:</p> <ul dir="auto"> <li>The specific output of this function should not be considered stable across library versions. The only guarantees the library provides are that the line length will be <code>h3Distance(start, end) + 1</code> and that every index in the line will be a neighbor of the preceding index.</li> <li>Lines are drawn in grid space, and may not correspond exactly to either Cartesian lines or great arcs.</li> </ul> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - H3 indexes connecting origin and destination<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If input is invalid or the line cannot be calculated</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>origin</td> <td><code>H3IndexInput</code></td> <td>Origin hexagon index</td> </tr> <tr> <td>destination</td> <td><code>H3IndexInput</code></td> <td>Destination hexagon index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltolocalij"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToLocalIj(origin, destination) ⇒ <code>CoordIJ</code></h3><a id="user-content-h3celltolocalijorigin-destination--coordij" class="anchor" aria-label="Permalink: h3.cellToLocalIj(origin, destination) ⇒ CoordIJ" href="#h3celltolocalijorigin-destination--coordij"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Produces IJ coordinates for an H3 index anchored by an origin.</p> <ul dir="auto"> <li>The coordinate space used by this function may have deleted regions or warping due to pentagonal distortion.</li> <li>Coordinates are only comparable if they come from the same origin index.</li> <li>Failure may occur if the index is too far away from the origin or if the index is on the other side of a pentagon.</li> <li>This function is experimental, and its output is not guaranteed to be compatible across different versions of H3.</li> </ul> <p dir="auto"><strong>Returns</strong>: <code>CoordIJ</code> - Coordinates as an <code>{i, j}</code> pair<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the IJ coordinates cannot be calculated</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>origin</td> <td><code>H3IndexInput</code></td> <td>Origin H3 index</td> </tr> <tr> <td>destination</td> <td><code>H3IndexInput</code></td> <td>H3 index for which to find relative coordinates</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.localijtocell"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.localIjToCell(origin, coords) ⇒ <code>H3Index</code></h3><a id="user-content-h3localijtocellorigin-coords--h3index" class="anchor" aria-label="Permalink: h3.localIjToCell(origin, coords) ⇒ H3Index" href="#h3localijtocellorigin-coords--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Produces an H3 index for IJ coordinates anchored by an origin.</p> <ul dir="auto"> <li>The coordinate space used by this function may have deleted regions or warping due to pentagonal distortion.</li> <li>Coordinates are only comparable if they come from the same origin index.</li> <li>Failure may occur if the index is too far away from the origin or if the index is on the other side of a pentagon.</li> <li>This function is experimental, and its output is not guaranteed to be compatible across different versions of H3.</li> </ul> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - H3 index at the relative coordinates<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the H3 index cannot be calculated</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>origin</td> <td><code>H3IndexInput</code></td> <td>Origin H3 index</td> </tr> <tr> <td>coords</td> <td><code>CoordIJ</code></td> <td>Coordinates as an <code>{i, j}</code> pair</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.greatcircledistance"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.greatCircleDistance(latLng1, latLng2, unit) ⇒ <code>number</code></h3><a id="user-content-h3greatcircledistancelatlng1-latlng2-unit--number" class="anchor" aria-label="Permalink: h3.greatCircleDistance(latLng1, latLng2, unit) ⇒ number" href="#h3greatcircledistancelatlng1-latlng2-unit--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Great circle distance between two geo points. This is not specific to H3, but is implemented in the library and provided here as a convenience.</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Great circle distance<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the unit is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>latLng1</td> <td><code>Array.<number></code></td> <td>Origin coordinate as [lat, lng]</td> </tr> <tr> <td>latLng2</td> <td><code>Array.<number></code></td> <td>Destination coordinate as [lat, lng]</td> </tr> <tr> <td>unit</td> <td><code>string</code></td> <td>Distance unit (either UNITS.m, UNITS.km, or UNITS.rads)</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.cellarea"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellArea(h3Index, unit) ⇒ <code>number</code></h3><a id="user-content-h3cellareah3index-unit--number" class="anchor" aria-label="Permalink: h3.cellArea(h3Index, unit) ⇒ number" href="#h3cellareah3index-unit--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Exact area of a given cell</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Cell area<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>H3 index of the hexagon to measure</td> </tr> <tr> <td>unit</td> <td><code>string</code></td> <td>Distance unit (either UNITS.m2, UNITS.km2, or UNITS.rads2)</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.edgelength"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.edgeLength(edge, unit) ⇒ <code>number</code></h3><a id="user-content-h3edgelengthedge-unit--number" class="anchor" aria-label="Permalink: h3.edgeLength(edge, unit) ⇒ number" href="#h3edgelengthedge-unit--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Calculate length of a given unidirectional edge</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Cell area<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>edge</td> <td><code>H3IndexInput</code></td> <td>H3 index of the edge to measure</td> </tr> <tr> <td>unit</td> <td><code>string</code></td> <td>Distance unit (either UNITS.m, UNITS.km, or UNITS.rads)</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.gethexagonareaavg"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getHexagonAreaAvg(res, unit) ⇒ <code>number</code></h3><a id="user-content-h3gethexagonareaavgres-unit--number" class="anchor" aria-label="Permalink: h3.getHexagonAreaAvg(res, unit) ⇒ number" href="#h3gethexagonareaavgres-unit--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Average hexagon area at a given resolution</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Average area<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>res</td> <td><code>number</code></td> <td>Hexagon resolution</td> </tr> <tr> <td>unit</td> <td><code>string</code></td> <td>Area unit (either UNITS.m2, UNITS.km2, or UNITS.rads2)</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.gethexagonedgelengthavg"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getHexagonEdgeLengthAvg(res, unit) ⇒ <code>number</code></h3><a id="user-content-h3gethexagonedgelengthavgres-unit--number" class="anchor" aria-label="Permalink: h3.getHexagonEdgeLengthAvg(res, unit) ⇒ number" href="#h3gethexagonedgelengthavgres-unit--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Average hexagon edge length at a given resolution</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Average edge length<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>res</td> <td><code>number</code></td> <td>Hexagon resolution</td> </tr> <tr> <td>unit</td> <td><code>string</code></td> <td>Distance unit (either UNITS.m, UNITS.km, or UNITS.rads)</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltovertex"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToVertex(h3Index, vertexNum) ⇒ <code>H3Index</code></h3><a id="user-content-h3celltovertexh3index-vertexnum--h3index" class="anchor" aria-label="Permalink: h3.cellToVertex(h3Index, vertexNum) ⇒ H3Index" href="#h3celltovertexh3index-vertexnum--h3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Find the index for a vertex of a cell.</p> <p dir="auto"><strong>Returns</strong>: <code>H3Index</code> - Vertex index<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>Cell to find the vertex for</td> </tr> <tr> <td>vertexNum</td> <td><code>number</code></td> <td>Number (index) of the vertex to calculate</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.celltovertexes"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.cellToVertexes(h3Index) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3celltovertexesh3index--arrayh3index" class="anchor" aria-label="Permalink: h3.cellToVertexes(h3Index) ⇒ Array.<H3Index>" href="#h3celltovertexesh3index--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Find the indexes for all vertexes of a cell.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - All vertex indexes of this cell<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>Cell to find all vertexes for</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.vertextolatlng"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.vertexToLatLng(h3Index) ⇒ <code>CoordPair</code></h3><a id="user-content-h3vertextolatlngh3index--coordpair" class="anchor" aria-label="Permalink: h3.vertexToLatLng(h3Index) ⇒ CoordPair" href="#h3vertextolatlngh3index--coordpair"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the lat, lng of a given vertex</p> <p dir="auto"><strong>Returns</strong>: <code>CoordPair</code> - Latitude, longitude coordinates of the vertex<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the input is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>A vertex index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.isvalidvertex"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.isValidVertex(h3Index) ⇒ <code>boolean</code></h3><a id="user-content-h3isvalidvertexh3index--boolean" class="anchor" aria-label="Permalink: h3.isValidVertex(h3Index) ⇒ boolean" href="#h3isvalidvertexh3index--boolean"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Returns true if the input is a valid vertex index.</p> <p dir="auto"><strong>Returns</strong>: <code>boolean</code> - True if the index represents a vertex</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>h3Index</td> <td><code>H3IndexInput</code></td> <td>An index to test for being a vertex index</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.getnumcells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getNumCells(res) ⇒ <code>number</code></h3><a id="user-content-h3getnumcellsres--number" class="anchor" aria-label="Permalink: h3.getNumCells(res) ⇒ number" href="#h3getnumcellsres--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The total count of hexagons in the world at a given resolution. Note that above resolution 8 the exact count cannot be represented in a JavaScript 32-bit number, so consumers should use caution when applying further operations to the output.</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Count<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the resolution is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>res</td> <td><code>number</code></td> <td>Hexagon resolution</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.getres0cells"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getRes0Cells() ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3getres0cells--arrayh3index" class="anchor" aria-label="Permalink: h3.getRes0Cells() ⇒ Array.<H3Index>" href="#h3getres0cells--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get all H3 indexes at resolution 0. As every index at every resolution > 0 is the descendant of a res 0 index, this can be used with h3ToChildren to iterate over H3 indexes at any resolution.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - All H3 indexes at res 0</p> <hr> <p dir="auto"><a name="user-content-module_h3.getpentagons"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.getPentagons(res) ⇒ <code>Array.<H3Index></code></h3><a id="user-content-h3getpentagonsres--arrayh3index" class="anchor" aria-label="Permalink: h3.getPentagons(res) ⇒ Array.<H3Index>" href="#h3getpentagonsres--arrayh3index"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Get the twelve pentagon indexes at a given resolution.</p> <p dir="auto"><strong>Returns</strong>: <code>Array.<H3Index></code> - All H3 pentagon indexes at res<br> <strong>Throws</strong>:</p> <ul dir="auto"> <li><code>H3Error</code> If the resolution is invalid</li> </ul> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>res</td> <td><code>number</code></td> <td>Hexagon resolution</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.degstorads"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.degsToRads(deg) ⇒ <code>number</code></h3><a id="user-content-h3degstoradsdeg--number" class="anchor" aria-label="Permalink: h3.degsToRads(deg) ⇒ number" href="#h3degstoradsdeg--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Convert degrees to radians</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Value in radians</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>deg</td> <td><code>number</code></td> <td>Value in degrees</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.radstodegs"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.radsToDegs(rad) ⇒ <code>number</code></h3><a id="user-content-h3radstodegsrad--number" class="anchor" aria-label="Permalink: h3.radsToDegs(rad) ⇒ number" href="#h3radstodegsrad--number"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Convert radians to degrees</p> <p dir="auto"><strong>Returns</strong>: <code>number</code> - Value in degrees</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Param</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>rad</td> <td><code>number</code></td> <td>Value in radians</td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.h3index"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.H3Index : <code>string</code></h3><a id="user-content-h3h3index--string" class="anchor" aria-label="Permalink: h3.H3Index : string" href="#h3h3index--string"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">64-bit hexidecimal string representation of an H3 index</p> <hr> <p dir="auto"><a name="user-content-module_h3.h3indexinput"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.H3IndexInput : <code>string</code> | <code>Array.<number></code></h3><a id="user-content-h3h3indexinput--string--arraynumber" class="anchor" aria-label="Permalink: h3.H3IndexInput : string | Array.<number>" href="#h3h3indexinput--string--arraynumber"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">64-bit hexidecimal string representation of an H3 index, or two 32-bit integers in little endian order in an array.</p> <hr> <p dir="auto"><a name="user-content-module_h3.coordij"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.CoordIJ</h3><a id="user-content-h3coordij" class="anchor" aria-label="Permalink: h3.CoordIJ" href="#h3coordij"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Coordinates as an <code>{i, j}</code> pair</p> <p dir="auto"><strong>Properties</strong></p> <markdown-accessiblity-table><table> <thead> <tr> <th>Name</th> <th>Type</th> </tr> </thead> <tbody> <tr> <td>i</td> <td><code>number</code></td> </tr> <tr> <td>j</td> <td><code>number</code></td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.h3error"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.H3Error</h3><a id="user-content-h3h3error" class="anchor" aria-label="Permalink: h3.H3Error" href="#h3h3error"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Custom JS Error instance with an attached error code. Error codes come from the core H3 library and can be found <a href="https://h3geo.org/docs/library/errors#table-of-error-codes" rel="nofollow">in the H3 docs</a>.</p> <p dir="auto"><strong>Properties</strong></p> <markdown-accessiblity-table><table> <thead> <tr> <th>Name</th> <th>Type</th> </tr> </thead> <tbody> <tr> <td>message</td> <td><code>string</code></td> </tr> <tr> <td>code</td> <td><code>number</code></td> </tr> </tbody> </table></markdown-accessiblity-table> <hr> <p dir="auto"><a name="user-content-module_h3.coordpair"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.CoordPair : <code>Array.<number></code></h3><a id="user-content-h3coordpair--arraynumber" class="anchor" aria-label="Permalink: h3.CoordPair : Array.<number>" href="#h3coordpair--arraynumber"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Pair of lat,lng coordinates (or lng,lat if GeoJSON output is specified)</p> <hr> <p dir="auto"><a name="user-content-module_h3.splitlong"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">h3.SplitLong : <code>Array.<number></code></h3><a id="user-content-h3splitlong--arraynumber" class="anchor" aria-label="Permalink: h3.SplitLong : Array.<number>" href="#h3splitlong--arraynumber"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Pair of lower,upper 32-bit ints representing a 64-bit value</p> <hr> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Legacy API</h2><a id="user-content-legacy-api" class="anchor" aria-label="Permalink: Legacy API" href="#legacy-api"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">H3 v4 renamed the majority of the functions in the library. To help ease migration from H3 v3 to H3 v4, we offer a legacy API wrapper at <code>h3-js/legacy</code>, which exports the v4 functions with the v3 names. Users are welcome to use the legacy API wrapper as a transitional support, but are encouraged to upgrade to the H3 v4 API as soon as possible.</p> <p dir="auto">Note that the legacy API is <em>not</em> 100% backwards compatible - it's a thin wrapper on top of the v4 functions, so in cases where behavior has changed, the v4 behavior will be used. In particular, many of the v4 functions will throw errors for invalid input, where v3 functions would return null.</p> <p dir="auto">Installation:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="npm install h3-js"><pre class="notranslate"><code>npm install h3-js </code></pre></div> <p dir="auto">Usage:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="import {geoToH3} from 'h3-js/legacy'; const h3Index = geoToH3(37.3615593, -122.0553238, 7);"><pre class="notranslate"><code>import {geoToH3} from 'h3-js/legacy'; const h3Index = geoToH3(37.3615593, -122.0553238, 7); </code></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Development</h2><a id="user-content-development" class="anchor" aria-label="Permalink: Development" href="#development"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The <code>h3-js</code> library uses <code>yarn</code> as the preferred package manager. To install the dev dependencies, just run:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn"><pre class="notranslate"><code>yarn </code></pre></div> <p dir="auto">To lint the code:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn lint"><pre class="notranslate"><code>yarn lint </code></pre></div> <p dir="auto">To run the tests:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn test"><pre class="notranslate"><code>yarn test </code></pre></div> <p dir="auto">Code must be formatted with <code>prettier</code>; unformatted code will fail the build. To format all files:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn prettier"><pre class="notranslate"><code>yarn prettier </code></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Benchmarks</h3><a id="user-content-benchmarks" class="anchor" aria-label="Permalink: Benchmarks" href="#benchmarks"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The <code>h3-js</code> library includes a basic benchmark suite using <a href="https://benchmarkjs.com/" rel="nofollow">Benchmark.js</a>. Because many of the functions may be called over thousands of hexagons in a "hot loop", performance is an important concern. Benchmarks are run against the transpiled ES5 code by default.</p> <p dir="auto">To run the benchmarks in Node:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn benchmark-node"><pre class="notranslate"><code>yarn benchmark-node </code></pre></div> <p dir="auto">To run the benchmarks in a browser:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn benchmark-browser"><pre class="notranslate"><code>yarn benchmark-browser </code></pre></div> <p dir="auto">Sample Node output (Macbook Pro running Node 12):</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="isValidCell x 3,650,995 ops/sec ±1.67% (87 runs sampled) latLngToCell x 429,982 ops/sec ±1.39% (86 runs sampled) cellToLatLng x 1,161,867 ops/sec ±1.11% (84 runs sampled) cellToLatLng - integers x 1,555,791 ops/sec ±1.29% (86 runs sampled) cellToBoundary x 375,938 ops/sec ±1.25% (87 runs sampled) cellToBoundary - integers x 377,181 ops/sec ±1.18% (85 runs sampled) getIcosahedronFaces x 992,946 ops/sec ±1.13% (85 runs sampled) gridDisk x 194,400 ops/sec ±1.16% (85 runs sampled) polygonToCells_9 x 4,919 ops/sec ±0.79% (87 runs sampled) polygonToCells_11 x 368 ops/sec ±0.76% (86 runs sampled) polygonToCells_10ring x 76.88 ops/sec ±0.57% (68 runs sampled) cellsToMultiPolygon x 760 ops/sec ±1.06% (86 runs sampled) compactCells x 2,466 ops/sec ±0.75% (86 runs sampled) uncompactCells x 715 ops/sec ±1.15% (85 runs sampled) areNeighborCells x 1,073,086 ops/sec ±1.56% (89 runs sampled) cellsToDirectedEdge x 692,172 ops/sec ±1.06% (86 runs sampled) getDirectedEdgeOrigin x 995,390 ops/sec ±1.60% (85 runs sampled) getDirectedEdgeDestination x 930,473 ops/sec ±1.11% (86 runs sampled) isValidDirectedEdge x 3,505,407 ops/sec ±1.05% (87 runs sampled)"><pre class="notranslate"><code>isValidCell x 3,650,995 ops/sec ±1.67% (87 runs sampled) latLngToCell x 429,982 ops/sec ±1.39% (86 runs sampled) cellToLatLng x 1,161,867 ops/sec ±1.11% (84 runs sampled) cellToLatLng - integers x 1,555,791 ops/sec ±1.29% (86 runs sampled) cellToBoundary x 375,938 ops/sec ±1.25% (87 runs sampled) cellToBoundary - integers x 377,181 ops/sec ±1.18% (85 runs sampled) getIcosahedronFaces x 992,946 ops/sec ±1.13% (85 runs sampled) gridDisk x 194,400 ops/sec ±1.16% (85 runs sampled) polygonToCells_9 x 4,919 ops/sec ±0.79% (87 runs sampled) polygonToCells_11 x 368 ops/sec ±0.76% (86 runs sampled) polygonToCells_10ring x 76.88 ops/sec ±0.57% (68 runs sampled) cellsToMultiPolygon x 760 ops/sec ±1.06% (86 runs sampled) compactCells x 2,466 ops/sec ±0.75% (86 runs sampled) uncompactCells x 715 ops/sec ±1.15% (85 runs sampled) areNeighborCells x 1,073,086 ops/sec ±1.56% (89 runs sampled) cellsToDirectedEdge x 692,172 ops/sec ±1.06% (86 runs sampled) getDirectedEdgeOrigin x 995,390 ops/sec ±1.60% (85 runs sampled) getDirectedEdgeDestination x 930,473 ops/sec ±1.11% (86 runs sampled) isValidDirectedEdge x 3,505,407 ops/sec ±1.05% (87 runs sampled) </code></pre></div> <p dir="auto">When making code changes that may affect performance, please run benchmarks against <code>master</code> and then against your branch to identify any regressions.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Transpiling the C Source</h3><a id="user-content-transpiling-the-c-source" class="anchor" aria-label="Permalink: Transpiling the C Source" href="#transpiling-the-c-source"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The core library is transpiled using <a href="http://kripken.github.io/emscripten-site" rel="nofollow">emscripten</a>. The easiest way to build from source locally is by using Docker. Make sure Docker is installed, then:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="yarn docker-boot yarn build-emscripten"><pre class="notranslate"><code>yarn docker-boot yarn build-emscripten </code></pre></div> <p dir="auto">The build script uses the <code>H3_VERSION</code> file to determine the version of the core library to build. To use a different version of the library (e.g. to test local changes), clone the desired H3 repo to <code>./h3c</code> and then run <code>yarn docker-emscripten</code>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Contributing</h2><a id="user-content-contributing" class="anchor" aria-label="Permalink: Contributing" href="#contributing"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Pull requests and <a href="https://github.com/uber/h3-js/issues">Github issues</a> are welcome. Please include tests for new work, and keep the library test coverage at 100%. Please note that the purpose of this module is to expose the API of the <a href="https://github.com/uber/h3">H3 Core library</a>, so we will rarely accept new features that are not part of that API. New proposed feature work is more appropriate in the core C library or in a new JS library that depends on <code>h3-js</code>.</p> <p dir="auto">Before we can merge your changes, you must agree to the <a href="http://cla-assistant.io/uber/h3-js" rel="nofollow">Uber Contributor License Agreement</a>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Versioning</h2><a id="user-content-versioning" class="anchor" aria-label="Permalink: Versioning" href="#versioning"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The <a href="https://github.com/uber/h3">H3 core library</a> adheres to <a href="http://semver.org/" rel="nofollow">Semantic Versioning</a>. The <code>h3-js</code> library has a <code>major.minor.patch</code> version scheme. The major and minor version numbers of <code>h3-js</code> are the major and minor version of the bound core library, respectively. The patch version is incremented independently of the core library.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Legal and Licensing</h2><a id="user-content-legal-and-licensing" class="anchor" aria-label="Permalink: Legal and Licensing" href="#legal-and-licensing"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The <code>h3-js</code> library is licensed under the <a href="https://github.com/uber/h3-js/blob/master/LICENSE">Apache 2.0 License</a>.</p> <p dir="auto">DGGRID Copyright (c) 2015 Southern Oregon University</p> </article></div></div></div></div></div> <!-- --> <!-- --> <script type="application/json" id="__PRIMER_DATA_:R0:__">{"resolvedServerColorMode":"day"}</script></div> </react-partial> <input type="hidden" data-csrf="true" value="DGtV2ErjBCJhDMUErrg70Ns+bqzIzmuX4S4xMt7+Pjeu4QUSJBe32CpON9z4CxTD3aL+ep0o0CkigQGFmIWZGg==" /> </div> <div data-view-component="true" class="Layout-sidebar"> <div class="BorderGrid about-margin" data-pjax> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <div class="hide-sm hide-md"> <h2 class="mb-3 h4">About</h2> <p class="f4 my-3"> h3-js provides a JavaScript version of H3, a hexagon-based geospatial indexing system. </p> <div class="my-3 d-flex flex-items-center"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" 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1.75v8.5A1.75 1.75 0 0 1 14.25 14H1.75A1.75 1.75 0 0 1 0 12.25Zm1.75-.25a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25ZM3.5 6.25a.75.75 0 0 1 .75-.75h7a.75.75 0 0 1 0 1.5h-7a.75.75 0 0 1-.75-.75Zm.75 2.25h4a.75.75 0 0 1 0 1.5h-4a.75.75 0 0 1 0-1.5Z"></path> </svg> <span class="color-fg-muted">Custom properties</span></a> </div> <h3 class="sr-only">Stars</h3> <div class="mt-2"> <a href="/uber/h3-js/stargazers" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star mr-2"> <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path> </svg> <strong>909</strong> stars</a> </div> <h3 class="sr-only">Watchers</h3> <div class="mt-2"> <a href="/uber/h3-js/watchers" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-eye mr-2"> <path d="M8 2c1.981 0 3.671.992 4.933 2.078 1.27 1.091 2.187 2.345 2.637 3.023a1.62 1.62 0 0 1 0 1.798c-.45.678-1.367 1.932-2.637 3.023C11.67 13.008 9.981 14 8 14c-1.981 0-3.671-.992-4.933-2.078C1.797 10.83.88 9.576.43 8.898a1.62 1.62 0 0 1 0-1.798c.45-.677 1.367-1.931 2.637-3.022C4.33 2.992 6.019 2 8 2ZM1.679 7.932a.12.12 0 0 0 0 .136c.411.622 1.241 1.75 2.366 2.717C5.176 11.758 6.527 12.5 8 12.5c1.473 0 2.825-.742 3.955-1.715 1.124-.967 1.954-2.096 2.366-2.717a.12.12 0 0 0 0-.136c-.412-.621-1.242-1.75-2.366-2.717C10.824 4.242 9.473 3.5 8 3.5c-1.473 0-2.825.742-3.955 1.715-1.124.967-1.954 2.096-2.366 2.717ZM8 10a2 2 0 1 1-.001-3.999A2 2 0 0 1 8 10Z"></path> </svg> <strong>26</strong> watching</a> </div> <h3 class="sr-only">Forks</h3> <div class="mt-2"> <a href="/uber/h3-js/forks" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo-forked mr-2"> <path d="M5 5.372v.878c0 .414.336.75.75.75h4.5a.75.75 0 0 0 .75-.75v-.878a2.25 2.25 0 1 1 1.5 0v.878a2.25 2.25 0 0 1-2.25 2.25h-1.5v2.128a2.251 2.251 0 1 1-1.5 0V8.5h-1.5A2.25 2.25 0 0 1 3.5 6.25v-.878a2.25 2.25 0 1 1 1.5 0ZM5 3.25a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Zm6.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm-3 8.75a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Z"></path> </svg> <strong>82</strong> forks</a> </div> <div class="mt-2"> <a class="Link--muted" href="/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fuber%2Fh3-js&report=uber+%28user%29"> Report repository </a> </div> </div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame"> <a href="/uber/h3-js/releases" data-view-component="true" class="Link--primary no-underline Link">Releases <span title="26" data-view-component="true" class="Counter">26</span></a></h2> <a class="Link--primary d-flex no-underline" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/uber/h3-js/releases/tag/v4.1.0"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-tag flex-shrink-0 mt-1 color-fg-success"> <path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path> </svg> <div class="ml-2 min-width-0"> <div class="d-flex"> <span class="css-truncate css-truncate-target text-bold mr-2" style="max-width: none;">Release 4.1.0</span> <span title="Label: Latest" data-view-component="true" class="Label Label--success flex-shrink-0"> Latest </span> </div> <div class="text-small color-fg-muted"><relative-time datetime="2023-01-20T01:27:42Z" class="no-wrap">Jan 20, 2023</relative-time></div> </div> </a> <div data-view-component="true" class="mt-3"> <a text="small" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/uber/h3-js/releases" data-view-component="true" class="Link">+ 25 releases</a></div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 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0-1.06Z"></path> </svg> </button> You can’t perform that action at this time. </div> <template id="site-details-dialog"> <details class="details-reset details-overlay details-overlay-dark lh-default color-fg-default hx_rsm" open> <summary role="button" aria-label="Close dialog"></summary> <details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast hx_rsm-dialog hx_rsm-modal"> <button class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button> <div class="octocat-spinner my-6 js-details-dialog-spinner"></div> </details-dialog> </details> </template> <div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;"> <div class="Popover-message Popover-message--bottom-left Popover-message--large Box color-shadow-large" style="width:360px;"> </div> </div> <template id="snippet-clipboard-copy-button"> <div class="zeroclipboard-container position-absolute right-0 top-0"> <clipboard-copy aria-label="Copy" class="ClipboardButton btn js-clipboard-copy m-2 p-0" data-copy-feedback="Copied!" data-tooltip-direction="w"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon m-2"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none m-2"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> </div> </template> <template id="snippet-clipboard-copy-button-unpositioned"> <div class="zeroclipboard-container"> <clipboard-copy aria-label="Copy" class="ClipboardButton btn btn-invisible js-clipboard-copy m-2 p-0 d-flex flex-justify-center flex-items-center" data-copy-feedback="Copied!" data-tooltip-direction="w"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> </div> </template> </div> <div id="js-global-screen-reader-notice" class="sr-only mt-n1" aria-live="polite" aria-atomic="true" ></div> <div id="js-global-screen-reader-notice-assertive" class="sr-only mt-n1" aria-live="assertive" aria-atomic="true"></div> </body> </html>