CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Open Cascade Technology - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"f699e83b-a4e7-4726-b851-01491a9fa0e0","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Open_Cascade_Technology","wgTitle":"Open Cascade Technology","wgCurRevisionId":1251729322,"wgRevisionId":1251729322,"wgArticleId":3041667,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Webarchive template wayback links","Articles with short description","Short description is different from Wikidata","Use dmy dates from August 2017","Articles lacking reliable references from April 2007","All articles lacking reliable references","Wikipedia articles containing buzzwords from January 2022","Free computer-aided design software","Free software programmed in C++","Computer-aided design software for Linux", "Computer-aided manufacturing software for Linux","Computer-aided engineering software for Linux","3D graphics software"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Open_Cascade_Technology","wgRelevantArticleId":3041667,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":20000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage", "wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q1760165","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=[ "ext.cite.ux-enhancements","site","mediawiki.page.ready","jquery.makeCollapsible","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/c/c5/Opencascadedemo.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="900"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Opencascadedemo.jpg/800px-Opencascadedemo.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="600"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Opencascadedemo.jpg/640px-Opencascadedemo.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="480"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Open Cascade Technology - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/Open_Cascade_Technology"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=Open_Cascade_Technology&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/Open_Cascade_Technology"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Open_Cascade_Technology rootpage-Open_Cascade_Technology skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=Open+Cascade+Technology" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=Open+Cascade+Technology" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=Open+Cascade+Technology" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Open+Cascade+Technology" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>History</span> </div> </a> <button aria-controls="toc-History-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle History subsection</span> </button> <ul id="toc-History-sublist" class="vector-toc-list"> <li id="toc-Open_sourcing" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Open_sourcing"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Open sourcing</span> </div> </a> <ul id="toc-Open_sourcing-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Community_fork" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Community_fork"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Community fork</span> </div> </a> <ul id="toc-Community_fork-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collaborative_development_portal" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Collaborative_development_portal"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Collaborative development portal</span> </div> </a> <ul id="toc-Collaborative_development_portal-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-License_change" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#License_change"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>License change</span> </div> </a> <ul id="toc-License_change-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Functionality" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Functionality"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Functionality</span> </div> </a> <button aria-controls="toc-Functionality-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Functionality subsection</span> </button> <ul id="toc-Functionality-sublist" class="vector-toc-list"> <li id="toc-Object_libraries" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Object_libraries"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Object libraries</span> </div> </a> <ul id="toc-Object_libraries-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Workshop_Organization_Kit" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Workshop_Organization_Kit"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Workshop Organization Kit</span> </div> </a> <ul id="toc-Workshop_Organization_Kit-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Working_with_IFC_files" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Working_with_IFC_files"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Working with IFC files</span> </div> </a> <ul id="toc-Working_with_IFC_files-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-CAD_programs_based_on_Open_Cascade_Technology" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#CAD_programs_based_on_Open_Cascade_Technology"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>CAD programs based on Open Cascade Technology</span> </div> </a> <ul id="toc-CAD_programs_based_on_Open_Cascade_Technology-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Open Cascade Technology</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 9 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-9" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">9 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Open_Cascade_Technology" title="Open Cascade Technology – Minnan" lang="nan" hreflang="nan" data-title="Open Cascade Technology" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Open_Cascade_Technology" title="Open Cascade Technology – Catalan" lang="ca" hreflang="ca" data-title="Open Cascade Technology" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Open_CASCADE_Technology" title="Open CASCADE Technology – German" lang="de" hreflang="de" data-title="Open CASCADE Technology" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Open_CASCADE_Technology" title="Open CASCADE Technology – French" lang="fr" hreflang="fr" data-title="Open CASCADE Technology" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Open_CASCADE_Technology" title="Open CASCADE Technology – Italian" lang="it" hreflang="it" data-title="Open CASCADE Technology" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Open_Cascade_%E3%83%86%E3%82%AF%E3%83%8E%E3%83%AD%E3%82%B8%E3%83%BC" title="Open Cascade テクノロジー – Japanese" lang="ja" hreflang="ja" data-title="Open Cascade テクノロジー" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Open_CASCADE_Technology" title="Open CASCADE Technology – Portuguese" lang="pt" hreflang="pt" data-title="Open CASCADE Technology" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Open_Cascade_Technology" title="Open Cascade Technology – Russian" lang="ru" hreflang="ru" data-title="Open Cascade Technology" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/OpenCASCADE" title="OpenCASCADE – Ukrainian" lang="uk" hreflang="uk" data-title="OpenCASCADE" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1760165#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Open_Cascade_Technology" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Open_Cascade_Technology" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Open_Cascade_Technology"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Open_Cascade_Technology"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Open_Cascade_Technology" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Open_Cascade_Technology" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&oldid=1251729322" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=Open_Cascade_Technology&id=1251729322&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FOpen_Cascade_Technology"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FOpen_Cascade_Technology"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Open_Cascade_Technology&action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Open_Cascade_Technology&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1760165" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Open-source 3D modelling software</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Primary_sources plainlinks metadata ambox ambox-content ambox-Primary_sources" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>relies excessively on <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">references</a> to <a href="/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources" title="Wikipedia:No original research">primary sources</a></b>.<span class="hide-when-compact"> Please improve this article by adding <a href="/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources" title="Wikipedia:No original research">secondary or tertiary sources</a>. <br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Open+Cascade+Technology%22">"Open Cascade Technology"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Open+Cascade+Technology%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Open+Cascade+Technology%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Open+Cascade+Technology%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Open+Cascade+Technology%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Open+Cascade+Technology%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">April 2007</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Open Cascade Technology</caption><tbody><tr><td colspan="2" class="infobox-image logo"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Occtecht01sm_wiki.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/1/11/Occtecht01sm_wiki.jpg/120px-Occtecht01sm_wiki.jpg" decoding="async" width="120" height="48" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/1/11/Occtecht01sm_wiki.jpg/180px-Occtecht01sm_wiki.jpg 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/1/11/Occtecht01sm_wiki.jpg/240px-Occtecht01sm_wiki.jpg 2x" data-file-width="250" data-file-height="99" /></a></span></td></tr><tr><td colspan="2" class="infobox-image logo"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Opencascadedemo.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Opencascadedemo.jpg/220px-Opencascadedemo.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Opencascadedemo.jpg/330px-Opencascadedemo.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Opencascadedemo.jpg/440px-Opencascadedemo.jpg 2x" data-file-width="1024" data-file-height="768" /></a></span><div class="infobox-caption">OpenCASCADE Screenshot</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><a href="/wiki/Open_Cascade" title="Open Cascade">Open Cascade</a> S.A.S.U.</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">1999<span class="noprint">; 25 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1999</span>)</span></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">7.8.1<sup id="cite_ref-wikidata-a81ca6d823ed4a141152f2a4604146e44285a670-v18_1-0" class="reference"><a href="#cite_note-wikidata-a81ca6d823ed4a141152f2a4604146e44285a670-v18-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q1760165?uselang=en#P348" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span> / 1 April 2024<span class="noprint">; 7 months ago</span><span style="display:none"> (<span class="bday dtstart published updated">1 April 2024</span>)</span></div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="url"><a rel="nofollow" class="external text" href="http://git.dev.opencascade.org/gitweb/?p=occt.git">git<wbr />.dev<wbr />.opencascade<wbr />.org<wbr />/gitweb<wbr />/?p=occt<wbr />.git</a></span> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q1760165#P1324" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data"><a href="/wiki/C%2B%2B" title="C++">C++</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="/wiki/Linux" title="Linux">Linux</a>, <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a>, <a href="/wiki/Mac_OS_X" class="mw-redirect" title="Mac OS X">Mac OS X</a>, <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a>, <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a>, <a href="/wiki/IOS" title="IOS">iOS</a> and <a href="/wiki/WebAssembly" title="WebAssembly">WebAssembly</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/Computer-aided_design" title="Computer-aided design">CAD</a>, <a href="/wiki/Computer-aided_manufacturing" title="Computer-aided manufacturing">CAM</a>, <a href="/wiki/Computer-aided_engineering" title="Computer-aided engineering">CAE</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">LGPL-2.1-only</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> with exception<sup id="cite_ref-licensing_3-0" class="reference"><a href="#cite_note-licensing-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><a rel="nofollow" class="external free" href="https://dev.opencascade.org">https://dev.opencascade.org</a></td></tr></tbody></table> <p><b>Open Cascade Technology</b> (OCCT), formerly called <i>CAS.CADE</i>, is an <a href="/wiki/Open-source_software" title="Open-source software">open-source software</a> development platform for 3D <a href="/wiki/Computer-aided_design" title="Computer-aided design">CAD</a>, <a href="/wiki/Computer-aided_manufacturing" title="Computer-aided manufacturing">CAM</a>, <a href="/wiki/Computer-aided_engineering" title="Computer-aided engineering">CAE</a>, etc. that is developed and supported by <a href="/wiki/Open_Cascade" title="Open Cascade">Open Cascade SAS</a> company. </p><p>OCCT is a full-scale <a href="/wiki/Boundary_representation" title="Boundary representation">B-Rep (Boundary representation)</a> modeling toolkit. OCCT is available under the <a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">LGPL-2.1-only</a> license, which permits its usage in open source and proprietary applications. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>CAS.CADE</i> (abbreviated from Computer Aided Software for Computer Aided Design and Engineering) was originally developed in the early 1990s by <a href="/wiki/Matra" title="Matra">Matra</a> Datavision, developer of <a href="/wiki/Euclid_(computer_program)" title="Euclid (computer program)">Euclid</a> CAD software as the underlying infrastructure for its future version Euclid Quantum. In 1998 the company abandoned software development to concentrate on services, and most of the software development facilities were sold<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> to <a href="/wiki/Dassault_Syst%C3%A8mes" title="Dassault Systèmes">Dassault Systèmes</a>, developer of competing <a href="/wiki/CATIA" title="CATIA">CATIA</a>. </p> <table class="wikitable"> <caption> </caption> <tbody><tr> <th>Product name </th> <th>Release date </th> <th>Latest Update Version </th> <th>Latest Update Date </th> <th>Highlights </th></tr> <tr> <th>Open CASCADE Technology 7.6 </th> <td><span class="nowrap">2021-11-03</span> </td> <td>7.6.2 </td> <td><span class="nowrap">2022-04-29</span> </td> <td> <ul><li>Added progress indication / abortion to Boolean operations and offset algorithm.</li> <li>Added support of kinematics entities to STEP reader.</li> <li>Introduced interface for partial OCAF document reading.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 7.5 </th> <td>2020-11-05 </td> <td>7.5.3 </td> <td>2021-08-06 </td> <td> <ul><li>Real-time <a href="/wiki/Physically_based_rendering" title="Physically based rendering">Physically based rendering</a> (PBR) renderer using Metallic-Roughness material model.</li> <li>WebAssembly target platform support (including <a href="/wiki/WebGL" title="WebGL">WebGL</a> viewer).</li> <li>UNICODE support in STEP reader/writer.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 7.4 </th> <td><span class="nowrap">2019-10-01</span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>Improved BRepMesh performance, robustness and accuracy.</li> <li>Improved robustness and stability of Boolean operations and Extrema.</li> <li>Improved performance of built-in parallelization tools (OSD_Parallel).</li> <li>Added <a href="/wiki/GlTF" title="GlTF">glTF</a> 2.0 and <a href="/wiki/Wavefront_.obj_file" title="Wavefront .obj file">OBJ</a> readers.</li> <li>Added AIS_ViewController mapping user input to 3D viewer camera manipulations.</li> <li>Added support of 3/4 and box clipping configurations to 3D viewer.</li> <li>Added fast HLR-alike <a href="/wiki/OpenGL" title="OpenGL">OpenGL</a> rendering mode.</li> <li>Removed legacy Local Context functionality from AIS and legacy Boolean operations.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 7.3 </th> <td>2018-05-29 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>Added algorithm constructing OBB (oriented bounding box).</li> <li>Optimized surface intersection, shape offset and Boolean operation algorithms.</li> <li>Added distance and size culling rendering features.</li> <li>Added support of UNICODE filenames with MinGW-w64.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 7.2 </th> <td>2017-08-31 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>Added support of OCAF binary files larger than 2 GiB.</li> <li>Added "Glue"<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> option to Boolean algorithms.</li> <li>Added support of annotations, saved views and clipping planes to STEP and XDE.</li> <li>Added Weighted OIT (<a href="/wiki/Order-independent_transparency" title="Order-independent transparency">Order-independent transparency</a>) rendering feature.</li> <li><a href="/wiki/Path_Tracing" class="mw-redirect" title="Path Tracing">Path Tracing</a> engine improvements.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 7.1 </th> <td>2016-11-25 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>OCAF persistence without dynamically loaded plugins.</li> <li>Improved STEP AP242 support, including PMI, dimensions and annotations.</li> <li>Improved rendering performance of Wireframe AIS_Shape presentation.</li> <li>Added AIS_Manipulator for interactive object transformations in 3D viewer.</li> <li>TKOpenGl now uses <a href="/wiki/OpenGL_Shading_Language" title="OpenGL Shading Language">GLSL</a> programs by default.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 7.0 </th> <td>2016-04-05 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>WOK (Workshop Organization Kit) has been replaced by <a href="/wiki/CMake" title="CMake">CMake</a> building scripts.</li> <li>CDL files have been replaced by pre-generated C++ headers.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 6.9 </th> <td>2015-05-12 </td> <td>6.9.1 </td> <td>2015-09-28 </td> <td> <ul><li>Introduced "Fuzzy"<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Boolean operations with specified global tolerance.</li> <li>Introduced built-in multi-threading parallelization tools as alternative to <a href="/wiki/Threading_Building_Blocks" title="Threading Building Blocks">TBB</a> library.</li> <li>Improved robustness of surface-surface intersection and curve on surface projection.</li> <li>Improved performance of p-curve reconstruction within STEP import.</li> <li>Improved compatibility with <a href="/wiki/OpenGL_ES" title="OpenGL ES">OpenGL ES</a> 2.0.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 6.8 </th> <td>2014-11-10 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>Added support of UNICODE (<a href="/wiki/UTF-8" title="UTF-8">UTF-8</a>) filenames.</li> <li>Added STL-compatible iterators to NCollection classes.</li> <li>"Handle" smart-pointer now uses NULL pointer instead of a special value 0xfefd0000.</li> <li>Added <a href="/wiki/Bounding_volume_hierarchy" title="Bounding volume hierarchy">Bounding volume hierarchy</a> (BVH) algorithms and structures.</li> <li>Introduced multi-threaded version of Boolean operation algorithm.</li> <li>Introduced limited <a href="/wiki/OpenGL_ES" title="OpenGL ES">OpenGL ES</a> 2.0 support in 3D viewer.</li> <li>Added VIS / TKIVtk component<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> providing a B-Rep shape presentation builder for <a href="/wiki/VTK" title="VTK">VTK</a> viewer.</li> <li>Added support of <a href="/wiki/Stereo_display" class="mw-redirect" title="Stereo display">stereoscopic displays</a><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> within 3D viewer.</li> <li>Added frustum culling feature improving rendering performance.</li> <li>Ray-Tracing engine has been switched from <a href="/wiki/OpenCL" title="OpenCL">OpenCL</a> to <a href="/wiki/OpenGL_Shading_Language" title="OpenGL Shading Language">GLSL</a> implementation.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 6.7 </th> <td>2013-12-18 </td> <td>6.7.1 </td> <td>2014-04-30 </td> <td> <ul><li><b>License has been changed to <a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">LGPL-2.1-only</a> with additional exception.</b><sup id="cite_ref-licensing_3-1" class="reference"><a href="#cite_note-licensing-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li> <li>Built-in GPU-accelerated Ray-Tracing rendering engine<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> using <a href="/wiki/OpenCL" title="OpenCL">OpenCL</a>.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 6.6 </th> <td>2013-04-22 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> </td></tr> <tr> <th>Open CASCADE Technology 6.5 </th> <td>2011-04-04 </td> <td>6.5.5 </td> <td>2013-03-29 </td> <td> </td></tr> <tr> <th>Open CASCADE Technology 6.4 </th> <td>2010-09-30 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> <ul><li>Added multi-threaded mode to BRepMesh algorithm (introduced optional <a href="/wiki/Threading_Building_Blocks" title="Threading Building Blocks">TBB</a> library support).</li> <li>Improved rendering performance by using <a href="/wiki/Vertex_buffer_object" title="Vertex buffer object">Vertex buffer object</a> (VBO).</li> <li>TKOpenGl implementation converted from C to C++ classes.</li> <li>Improved text rendering with help of FTGL and <a href="/wiki/FreeType" title="FreeType">FreeType</a> libraries.</li> <li>Improved algorithms for line-line, line-plane and plane-plane intersection.</li></ul> </td></tr> <tr> <th>Open CASCADE Technology 6.3 </th> <td>2008-09-03 </td> <td>6.3.1 </td> <td>2009-06-19 </td> <td> </td></tr> <tr> <th>Open CASCADE Technology 6.2 </th> <td>? </td> <td>6.2.1 </td> <td>2007-12-06 </td> <td> </td></tr> <tr> <th>Open CASCADE Technology 6.1 </th> <td>2006-03-24 </td> <td>6.1.1 </td> <td>2006-10-16 </td> <td> </td></tr> <tr> <th>Open CASCADE Technology 5.2 </th> <td>? </td> <td>5.2.4 </td> <td>2005-07-29 </td> <td> </td></tr> <tr> <th>Open CASCADE Technology 5.1 </th> <td>? </td> <td>5.1.3 </td> <td>2004-04-23 </td> <td>"Open CASCADE" has been renamed to "Open CASCADE Technology". </td></tr> <tr> <th>Open CASCADE 4.0 </th> <td>2001-12-11 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> </td></tr> <tr> <th>Open CASCADE 3.0 </th> <td>2000-04-24 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> </td></tr> <tr> <th>Open CASCADE 2.0 </th> <td>? </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> </td></tr> <tr> <th>Open CASCADE 1.0 </th> <td>1999 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td> </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Open_sourcing">Open sourcing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=2" title="Edit section: Open sourcing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 1999 Matra Datavision decided to publish its CAS.CADE infrastructure under an open-source model under the <i>Open CASCADE Technology Public License</i><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> and renamed it Open Cascade.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>In 2000, a separate company, Open Cascade SAS, was created to make business around Open Cascade.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Open Cascade SAS was sold in 2003 to Principia, a French service provider corporation, and then in 2006 it was acquired by <a href="/wiki/Euriware" title="Euriware">Euriware</a> Group, a subsidiary of <a href="/wiki/Areva" title="Areva">Areva</a>. </p><p>In 2004, software was renamed to Open Cascade Technology in order to distinguish it from the name of the company itself. </p><p>Open Cascade S.A.S. provides a certified version of the library, which is released sporadically, usually 1–2 releases per year.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Until version 6.5.0 (2011), only minor and major versions were publicly available, while intermediate (maintenance) releases were accessible only to customers of Open Cascade S.A.S. For example, version 6.3.0 was publicly released in 2008, and the next public version 6.5.0 was released in early 2011. All recent releases starting from version 6.5.0 are public.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Community_fork">Community fork</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=3" title="Edit section: Community fork"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In March 2011, Thomas Paviot initiated a fork of the then most recent publicly available version 6.5.0 of Open Cascade library. The initiative is called Open Cascade Community Edition. The project aims to establish a separate community-based release and bug-report process for the library.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Collaborative_development_portal">Collaborative development portal</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=4" title="Edit section: Collaborative development portal"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In December 2011, Open Cascade installed a web portal for external contributors<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> and made its <a href="/wiki/Mantis_Bug_Tracker" title="Mantis Bug Tracker">Mantis Bug Tracker</a><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> and further <a href="/wiki/Git_(software)" class="mw-redirect" title="Git (software)">Git</a> repository<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> publicly available (read-only GitHub mirror<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> has been established in '2020). According to the statements on the new website, external contributors from the Open Source Community are encouraged to participate in the development of Open Cascade Technology, i.e. register bugs directly in the <a href="/wiki/Bugtracker" class="mw-redirect" title="Bugtracker">bugtracker</a>, make contributions to the code after signing a <a href="/wiki/Contributor_License_Agreement" title="Contributor License Agreement">Contributor License Agreement</a>,<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> etc. </p> <div class="mw-heading mw-heading3"><h3 id="License_change">License change</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=5" title="Edit section: License change"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Since 18 December 2013 with version 6.7.0 Open Cascade Technology is available under the <a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">LGPL-2.1-only</a> with additional exception.<sup id="cite_ref-licensing_3-2" class="reference"><a href="#cite_note-licensing-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> Versions before that were licensed under the "Open Cascade Technology Public License" which was <a href="/wiki/License_compatibility" title="License compatibility">not compatible</a> with the <a href="/wiki/GPL" class="mw-redirect" title="GPL">GPL</a><sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> and was considered non-free by the <a href="/wiki/Fedora_Project" title="Fedora Project">Fedora project</a>.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Functionality">Functionality</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=6" title="Edit section: Functionality"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Object_libraries">Object libraries</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=7" title="Edit section: Object libraries"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>OCCT's functionality is split into several large modules. Each module defines a list of toolkits (libraries). Key Modules: </p> <ul><li><b>Foundation Classes</b>: defines basic classes, memory allocators, OS abstraction layer, collections (data maps, arrays, etc.), acceleration data structures (<a href="/wiki/Bounding_volume_hierarchy" title="Bounding volume hierarchy">BVH Trees</a>) and <a href="/wiki/Linear_algebra" title="Linear algebra">vector/matrix math</a> used by other Modules.</li> <li><b>Modeling Data</b>: supplies data structures to represent 2D and 3D geometric primitives (analytical curves: Line, <a href="/wiki/Circle" title="Circle">Circle</a>, <a href="/wiki/Ellipse" title="Ellipse">Ellipse</a>, Hyperbola, <a href="/wiki/Parabola" title="Parabola">Parabola</a>, <a href="/wiki/B%C3%A9zier_curve" title="Bézier curve">Bézier</a>, <a href="/wiki/B-spline" title="B-spline">B-spline</a>, Offset; analytical surfaces: Plane, <a href="/wiki/Cylinder" title="Cylinder">Cylinder</a>, <a href="/wiki/Cone" title="Cone">Cone</a>, <a href="/wiki/Sphere" title="Sphere">Sphere</a>, <a href="/wiki/Torus" title="Torus">Torus</a>, <a href="/wiki/B%C3%A9zier_surface" title="Bézier surface">Bézier</a>, <a href="/wiki/B-spline" title="B-spline">B-spline</a>, <a href="/wiki/Surface_of_revolution" title="Surface of revolution">Revolution</a>, Extrusion, Offset) and their compositions into <a href="/wiki/Boundary_representation" title="Boundary representation">B-Rep</a> models.</li> <li><b>Modeling Algorithms</b>: contains a vast range of geometrical and topological algorithms (intersection, Boolean operations, <a href="/wiki/Surface_triangulation" title="Surface triangulation">surface meshing</a>, <a href="/wiki/Fillet_(mechanics)" title="Fillet (mechanics)">fillets</a>, shape healing).</li> <li><b>Visualization (rendering)</b>: provides interactive services for displaying geometry in 3D Viewer; implements a compact <a href="/wiki/OpenGL" title="OpenGL">OpenGL</a> / <a href="/wiki/OpenGL_ES" title="OpenGL ES">OpenGL ES</a> renderer, supporting conventional <a href="/wiki/Phong_shading" title="Phong shading">Phong</a>, real-time <a href="/wiki/Physically_based_rendering" title="Physically based rendering">PBR</a> metal-roughness shading models as well as interactive <a href="/wiki/Ray_tracing_(graphics)" title="Ray tracing (graphics)">Ray-Tracing</a>/<a href="/wiki/Path_tracing" title="Path tracing">Path-Tracing</a> engine.</li> <li><b>Data Exchange</b>: provides possibility to import/export various CAD formats. <br /><a href="/wiki/ISO_10303" title="ISO 10303">STEP</a>, <a href="/wiki/IGES" title="IGES">IGES</a>, <a href="/wiki/GlTF" title="GlTF">glTF</a>, <a href="/wiki/Wavefront_.obj_file" title="Wavefront .obj file">OBJ</a>, <a href="/wiki/STL_(file_format)" title="STL (file format)">STL</a> and <a href="/wiki/VRML" title="VRML">VRML</a> are supported natively.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> Other formats can be imported by using plug-ins.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> Extended Data Exchange (<b>XDE</b>) components rely on a unified <b>XCAF document</b> definition, which includes an assembly structure of CAD shapes, color/name/material/metadata/layer attributes as well as other supplementary information like <a href="/wiki/Product_and_manufacturing_information" title="Product and manufacturing information">PMI</a>.</li> <li><b>Application Framework</b>: offers solutions<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Use_plain_English#Buzzwords" title="Wikipedia:Use plain English"><span title="The material near this tag may use buzzwords designed solely to impress you or obscure meaning. (January 2022)">buzzword</span></a></i>]</sup> for handling application-specific data.</li> <li><b>DRAW Test Harness</b>: implements a scripting interface to OCCT algorithms based on <a href="/wiki/Tcl" title="Tcl">Tcl</a>-interpreter for interactive usage, automating processes, prototyping applications and testing purposes.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Workshop_Organization_Kit">Workshop Organization Kit</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=8" title="Edit section: Workshop Organization Kit"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Workshop Organization Kit (WOK) is Open Cascade development environment, which has been designed to allow a large number of developers to work on a product getting advantage of common reference version shared over the local network. </p><p>Until OCCT 7.0.0 release, substantial modifications in the source code were not possible without using WOK, since it is the only tool that provides support for CDL (CAS.CADE definition language), used for declaration of most of OCCT classes and also serving to define logical structure of OCCT libraries. WOK has been included in previous OCCT distributions; since OCCT version 6.4 it is made an independent tool. </p><p>Within 7.0.0 release, all CDL files have been dropped from OCCT source code making WOK no longer necessary for OCCT development. </p> <div class="mw-heading mw-heading3"><h3 id="Working_with_IFC_files">Working with IFC files</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=9" title="Edit section: Working with IFC files"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Open CASCADE IFC Import SDK provides applications with the capability of reading <a href="/wiki/Building_Information_Modeling" class="mw-redirect" title="Building Information Modeling">BIM</a> data from files in <a href="/wiki/Industry_Foundation_Classes" title="Industry Foundation Classes">IFC</a> format. It supports versions IFC2×3 and IFC4 that used by most modern applications.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </p><p>This allows visualization and manipulation of building geometries and CAD designs. </p><p>External tools are available to convert from Open CASCADE to IFC as well.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="CAD_programs_based_on_Open_Cascade_Technology">CAD programs based on Open Cascade Technology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=10" title="Edit section: CAD programs based on Open Cascade Technology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Several CAD programs rely on Open CASCADE Technology including:<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </p> <ul><li><a href="/wiki/FreeCAD" title="FreeCAD">FreeCAD</a> an open source, 3D parametric modeler, with support for <a href="/wiki/Building_information_modeling" title="Building information modeling">building information modeling</a>, <a href="/wiki/Finite_element_method" title="Finite element method">finite-element-method (FEM)</a>, and <a href="/wiki/Python_(programming_language)" title="Python (programming language)">Python</a> scripting.<sup id="cite_ref-fossmint_29-0" class="reference"><a href="#cite_note-fossmint-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Salome_(software)" title="Salome (software)">SALOME</a> an open source platform for pre- and post-processing for numerical simulation.</li> <li><a href="/wiki/KiCad" title="KiCad">KiCad</a> an open source suite for electronic design automation (EDA).<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Gmsh" title="Gmsh">Gmsh</a> an open source finite-element mesh (FEM) generator. Since version 3.0, Gmsh supports full constructive solid geometry features, based on OCCT.</li> <li><a href="/wiki/FORAN_System" title="FORAN System">FORAN</a> an integrated CAD/CAM/CAE system developed by <a href="/wiki/SENER" title="SENER">SENER</a> for the design and production of practically any naval ship and offshore unit. <a href="/wiki/FORAN_System" title="FORAN System">FORAN</a> uses OCCT since V80R2.0 release<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> for working with analytical surfaces.</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=11" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/28px-Free_and_open-source_software_logo_%282009%29.svg.png" decoding="async" width="28" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/42px-Free_and_open-source_software_logo_%282009%29.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/56px-Free_and_open-source_software_logo_%282009%29.svg.png 2x" data-file-width="512" data-file-height="512" /></span></span></span><span class="portalbox-link"><a href="/wiki/Portal:Free_and_open-source_software" title="Portal:Free and open-source software">Free and open-source software portal</a></span></li></ul> <ul><li><a href="/wiki/Free_hardware" class="mw-redirect" title="Free hardware">Free hardware</a></li> <li><a href="/wiki/List_of_CAx_companies" title="List of CAx companies">List of CAx companies</a></li> <li><a href="/wiki/Computer-aided_design" title="Computer-aided design">Computer-aided design</a></li> <li><a href="/wiki/Open_Design_Alliance" title="Open Design Alliance">Open Design Alliance</a></li> <li><a href="/wiki/Building_Information_Modeling" class="mw-redirect" title="Building Information Modeling">Building Information Modeling</a></li> <li><a href="/wiki/Industry_Foundation_Classes" title="Industry Foundation Classes">Industry Foundation Classes</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Cascade_Technology&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-wikidata-a81ca6d823ed4a141152f2a4604146e44285a670-v18-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-wikidata-a81ca6d823ed4a141152f2a4604146e44285a670-v18_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/open-cascade-technology-781-maintenance-release">"Open CASCADE Technology 7.8.1 maintenance release"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">15 April</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Open+CASCADE+Technology+7.8.1+maintenance+release&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Fopen-cascade-technology-781-maintenance-release&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=blob;f=README.txt">"README.txt"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=README.txt&rft_id=https%3A%2F%2Fgit.dev.opencascade.org%2Fgitweb%2F%3Fp%3Docct.git%3Ba%3Dblob%3Bf%3DREADME.txt&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-licensing-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-licensing_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-licensing_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-licensing_3-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/resources/licensing/">"OCCT license"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=OCCT+license&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fresources%2Flicensing%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.3ds.com/press-releases/single/dassault-systemes-signs-agreement-to-acquire-matra-datavisions-subsidiary/">"Dassault Systemes Signs Agreement to Acquire Matra Datavision's Subsidiary"</a>. 27 January 2020.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Dassault+Systemes+Signs+Agreement+to+Acquire+Matra+Datavision%27s+Subsidiary&rft.date=2020-01-27&rft_id=https%3A%2F%2Fwww.3ds.com%2Fpress-releases%2Fsingle%2Fdassault-systemes-signs-agreement-to-acquire-matra-datavisions-subsidiary%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/gluing-options-boolean-component">"Gluing Options in Boolean Component - Forum Open Cascade Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">18 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=Gluing+Options+in+Boolean+Component+-+Forum+Open+Cascade+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Fgluing-options-boolean-component&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/fuzzy-boolean-operations">"Fuzzy Boolean Operations - Forum Open Cascade Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">18 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=Fuzzy+Boolean+Operations+-+Forum+Open+Cascade+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Ffuzzy-boolean-operations&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/vtk-integration-services-occt">"VTK integration services in OCCT - Forum Open Cascade Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">18 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=VTK+integration+services+in+OCCT+-+Forum+Open+Cascade+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Fvtk-integration-services-occt&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/stereoscopic-rendering-open-cascade-technology">"Stereoscopic rendering in Open CASCADE Technology - Forum Open Cascade Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">18 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=Stereoscopic+rendering+in+Open+CASCADE+Technology+-+Forum+Open+Cascade+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Fstereoscopic-rendering-open-cascade-technology&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/ray-tracing-alternative-rendering-method-occt-visualization-component">"Ray tracing as alternative rendering method for OCCT visualization component - Forum Open Cascade Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">18 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=Ray+tracing+as+alternative+rendering+method+for+OCCT+visualization+component+-+Forum+Open+Cascade+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Fray-tracing-alternative-rendering-method-occt-visualization-component&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.opencascade.org/getocc/license/license_old/">"Open CASCADE Technology Public License"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Open+CASCADE+Technology+Public+License&rft_id=http%3A%2F%2Fwww.opencascade.org%2Fgetocc%2Flicense%2Flicense_old%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120409094949/http://findarticles.com/p/articles/mi_pwwi/is_20050229/ai_mark01000244/">"Downloading Of Source Code For Open Cascade Gains Momentum | Market Wire | Find Articles"</a>. 9 April 2012. Archived from <a rel="nofollow" class="external text" href="http://findarticles.com/p/articles/mi_pwwi/is_20050229/ai_mark01000244/">the original</a> on 9 April 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">22 November</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Downloading+Of+Source+Code+For+Open+Cascade+Gains+Momentum+%26%23124%3B+Market+Wire+%26%23124%3B+Find+Articles&rft.date=2012-04-09&rft_id=http%3A%2F%2Ffindarticles.com%2Fp%2Farticles%2Fmi_pwwi%2Fis_20050229%2Fai_mark01000244%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.ebusiness-watch.org/studies/case_studies/documents/Case%20Studies%202005/CS_SR10_IT-services_4-Open_Cascade.pdf">European e-Business Market Watch Case Study: Open source-based services by Open Cascade S.A.</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110726012648/http://www.ebusiness-watch.org/studies/case_studies/documents/Case%20Studies%202005/CS_SR10_IT-services_4-Open_Cascade.pdf">Archived</a> 26 July 2011 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/release/previous/">"OCCT Previous Releases"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=OCCT+Previous+Releases&rft_id=https%3A%2F%2Fdev.opencascade.org%2Frelease%2Fprevious%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.opencascade.org/about/news/issue173/">"Becoming more and more open!"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Becoming+more+and+more+open%21&rft_id=http%3A%2F%2Fwww.opencascade.org%2Fabout%2Fnews%2Fissue173%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110416225420/http://www.opencascade.org/org/forum/thread_20111">"Thinkings about the 6.5.0 release, OCCT status, and the relationship with the Community"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.opencascade.org/org/forum/thread_20111/">the original</a> on 16 April 2011<span class="reference-accessdate">. Retrieved <span class="nowrap">15 April</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Thinkings+about+the+6.5.0+release%2C+OCCT+status%2C+and+the+relationship+with+the+Community&rft_id=http%3A%2F%2Fwww.opencascade.org%2Forg%2Fforum%2Fthread_20111%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.opencascade.org/about/news/issue178/">"Opening the Development of Open CASCADE Technology"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Opening+the+Development+of+Open+CASCADE+Technology&rft_id=http%3A%2F%2Fwww.opencascade.org%2Fabout%2Fnews%2Fissue178%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://tracker.dev.opencascade.org">"Mantis Bug Tracker for OCCT project"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Mantis+Bug+Tracker+for+OCCT+project&rft_id=http%3A%2F%2Ftracker.dev.opencascade.org&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://git.dev.opencascade.org/gitweb/?p=occt.git">"GitWeb interface to main OCCT git repository"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=GitWeb+interface+to+main+OCCT+git+repository&rft_id=http%3A%2F%2Fgit.dev.opencascade.org%2Fgitweb%2F%3Fp%3Docct.git&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://github.com/Open-Cascade-SAS/OCCT">"Passive mirror of OCCT git repository on GitHub"</a>. <i><a href="/wiki/GitHub" title="GitHub">GitHub</a></i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitHub&rft.atitle=Passive+mirror+of+OCCT+git+repository+on+GitHub&rft_id=https%3A%2F%2Fgithub.com%2FOpen-Cascade-SAS%2FOCCT&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-20">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/?q=home/get_involved/cla_processing_rules">"Signing the Contributor License Agreement"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Signing+the+Contributor+License+Agreement&rft_id=https%3A%2F%2Fdev.opencascade.org%2F%3Fq%3Dhome%2Fget_involved%2Fcla_processing_rules&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/content/relicensing-occt">"Relicensing OCCT - Forum Open Cascade Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 November</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=Relicensing+OCCT+-+Forum+Open+Cascade+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fcontent%2Frelicensing-occt&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-22">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/resources/faq/">"OCCT FAQ"</a>. <i>dev.opencascade.org</i>. Open Cascade<span class="reference-accessdate">. Retrieved <span class="nowrap">25 June</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=OCCT+FAQ&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fresources%2Ffaq%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-23">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCallaway" class="citation web cs1">Callaway, Tom. <a rel="nofollow" class="external text" href="https://fedoraproject.org/wiki/Licensing:Main?rd=Licensing">"Licensing:Main – Bad Licenses"</a>. <i>fedoraproject.org</i>. Red Hat, Inc. and others<span class="reference-accessdate">. Retrieved <span class="nowrap">18 May</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=fedoraproject.org&rft.atitle=Licensing%3AMain+%E2%80%93+Bad+Licenses&rft.aulast=Callaway&rft.aufirst=Tom&rft_id=https%3A%2F%2Ffedoraproject.org%2Fwiki%2FLicensing%3AMain%3Frd%3DLicensing&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dev.opencascade.org/about/data_exchange">"Data Exchange | Open CASCADE Technology"</a>. <i>dev.opencascade.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 November</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dev.opencascade.org&rft.atitle=Data+Exchange+%26%23124%3B+Open+CASCADE+Technology&rft_id=https%3A%2F%2Fdev.opencascade.org%2Fabout%2Fdata_exchange&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-25">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.opencascade.com/customers-and-partners/datakit/">"Datakit - Open Cascade"</a>. <i>opencascade.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 November</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=opencascade.com&rft.atitle=Datakit+-+Open+Cascade&rft_id=https%3A%2F%2Fwww.opencascade.com%2Fcustomers-and-partners%2Fdatakit%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-26">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.opencascade.com/components/ifc-import-component/">"Open CASCADE: IFC Import Component"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">15 November</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Open+CASCADE%3A+IFC+Import+Component&rft_id=https%3A%2F%2Fwww.opencascade.com%2Fcomponents%2Fifc-import-component%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-27">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://cadexchanger.com/brep-to-ifc/">"CAD Exchanger: How to convert Open CASCADE to IFC?"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">15 November</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=CAD+Exchanger%3A+How+to+convert+Open+CASCADE+to+IFC%3F&rft_id=https%3A%2F%2Fcadexchanger.com%2Fbrep-to-ifc%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</a></b></span> <span class="reference-text"> Open Cascade SAS. <a rel="nofollow" class="external text" href="https://dev.opencascade.org/about/projects_and_products">"Projects and products"</a>.</span> </li> <li id="cite_note-fossmint-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-fossmint_29-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFOkoi2017" class="citation web cs1">Okoi, Martins (1 December 2017). <a rel="nofollow" class="external text" href="https://www.fossmint.com/freecad-3d-modeling-and-design-software-for-linux/">"FreeCAD – A 3D Modeling and Design Software for Linux"</a>. FOSSMint<span class="reference-accessdate">. Retrieved <span class="nowrap">2 May</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=FreeCAD+%E2%80%93+A+3D+Modeling+and+Design+Software+for+Linux&rft.pub=FOSSMint&rft.date=2017-12-01&rft.aulast=Okoi&rft.aufirst=Martins&rft_id=https%3A%2F%2Fwww.fossmint.com%2Ffreecad-3d-modeling-and-design-software-for-linux%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLee2018" class="citation web cs1">Lee, Hawk (22 June 2018). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190503003156/https://engineeringdeskstudies.com/?p=365">"FreeCAD FEM Workbench (Calculix 2.14)"</a>. Archived from <a rel="nofollow" class="external text" href="https://engineeringdeskstudies.com/?p=365">the original</a> on 3 May 2019<span class="reference-accessdate">. Retrieved <span class="nowrap">2 May</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=FreeCAD+FEM+Workbench+%28Calculix+2.14%29&rft.date=2018-06-22&rft.aulast=Lee&rft.aufirst=Hawk&rft_id=https%3A%2F%2Fengineeringdeskstudies.com%2F%3Fp%3D365&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> <li id="cite_note-31"><span class="mw-cite-backlink"><b><a href="#cite_ref-31">^</a></b></span> <span class="reference-text"> KiCad <a rel="nofollow" class="external text" href="https://dev-docs.kicad.org/en/build/getting-started/">"Library Dependencies"</a>.</span> </li> <li id="cite_note-32"><span class="mw-cite-backlink"><b><a href="#cite_ref-32">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20180821060920/https://www.marine.sener/press-releases/seners-latest-version-of-foran-v80r20-lets-users-manage-series-of-ships">"SENER's latest version of FORAN V80R2.0 lets users manage series of ships"</a>. 19 July 2016. Archived from <a rel="nofollow" class="external text" href="https://www.marine.sener/press-releases/seners-latest-version-of-foran-v80r20-lets-users-manage-series-of-ships">the original</a> on 21 August 2018<span class="reference-accessdate">. Retrieved <span class="nowrap">4 August</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SENER%27s+latest+version+of+FORAN+V80R2.0+lets+users+manage+series+of+ships&rft.date=2016-07-19&rft_id=https%3A%2F%2Fwww.marine.sener%2Fpress-releases%2Fseners-latest-version-of-foran-v80r20-lets-users-manage-series-of-ships&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Cascade+Technology" class="Z3988"></span></span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Computer-aided_design_(CAD)_software" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:CAD_software" title="Template:CAD software"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:CAD_software" title="Template talk:CAD software"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:CAD_software" title="Special:EditPage/Template:CAD software"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Computer-aided_design_(CAD)_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Computer-aided_design" title="Computer-aided design">Computer-aided design</a> (CAD) software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free_and_open-source_software" title="Free and open-source software">Free and<br />open-source</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mechanical_systems_drawing" title="Mechanical systems drawing">Mechanical</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BRL-CAD" title="BRL-CAD">BRL-CAD</a></li> <li><a href="/wiki/FreeCAD" title="FreeCAD">FreeCAD</a></li> <li><a href="/wiki/HeeksCAD" title="HeeksCAD">HeeksCAD</a></li> <li><a href="/wiki/LibreCAD" title="LibreCAD">LibreCAD</a></li> <li><a class="mw-selflink selflink">Open Cascade Technology</a></li> <li><a href="/wiki/OpenSCAD" title="OpenSCAD">OpenSCAD</a></li> <li><a href="/wiki/QCAD" title="QCAD">QCAD</a></li> <li><a href="/wiki/RattleCAD" title="RattleCAD">rattleCAD</a></li> <li><a href="/wiki/Salome_(software)" title="Salome (software)">Salome</a></li> <li><a href="/wiki/SolveSpace" title="SolveSpace">SolveSpace</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Electronic_design_automation" title="Electronic design automation">Electrical</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Electric_(software)" title="Electric (software)">Electric</a></li> <li><a href="/wiki/FreePCB" title="FreePCB">FreePCB</a></li> <li><a href="/wiki/Fritzing" title="Fritzing">Fritzing</a></li> <li><a href="/wiki/GEDA" title="GEDA">gEDA</a></li> <li><a href="/wiki/KiCad" title="KiCad">KiCad</a></li> <li><a href="/wiki/KTechLab" title="KTechLab">kTechLab</a></li> <li><a href="/wiki/Magic_(software)" title="Magic (software)">Magic</a></li> <li><a href="/wiki/Ngspice" title="Ngspice">ngspice</a></li> <li><a href="/wiki/Oregano_(software)" title="Oregano (software)">Oregano</a></li> <li><a href="/wiki/Quite_Universal_Circuit_Simulator" title="Quite Universal Circuit Simulator">QUCS</a></li> <li><a href="/wiki/XCircuit" title="XCircuit">XCircuit</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mechanical_systems_drawing" title="Mechanical systems drawing">Mechanical</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ABViewer" title="ABViewer">ABViewer</a></li> <li><a href="/wiki/Alibre_Design" title="Alibre Design">Alibre Design</a></li> <li><a href="/wiki/ArchiCAD" class="mw-redirect" title="ArchiCAD">ArchiCAD</a></li> <li><a href="/wiki/AutoCAD" title="AutoCAD">AutoCAD</a></li> <li><a href="/wiki/Autodesk_Alias" title="Autodesk Alias">Autodesk Alias</a></li> <li><a href="/wiki/Autodesk_Inventor" title="Autodesk Inventor">Autodesk Inventor</a></li> <li><a href="/wiki/Autodesk_Revit" title="Autodesk Revit">Autodesk Revit</a></li> <li><a href="/wiki/AutoTURN" title="AutoTURN">AutoTURN</a></li> <li><a href="/wiki/BricsCAD" title="BricsCAD">BricsCAD</a></li> <li><a href="/wiki/CADKEY" title="CADKEY">CADKEY</a></li> <li><a href="/wiki/CATIA" title="CATIA">CATIA</a></li> <li><a href="/wiki/Cimatron" title="Cimatron">Cimatron</a></li> <li><a href="/wiki/Cobalt_(CAD_program)" title="Cobalt (CAD program)">Cobalt</a></li> <li><a href="/wiki/PTC_Creo_Elements/Direct_Drafting" title="PTC Creo Elements/Direct Drafting">Creo Elements/Direct Drafting</a></li> <li><a href="/wiki/PTC_Creo_Elements/Pro" class="mw-redirect" title="PTC Creo Elements/Pro">Creo Elements/Pro</a></li> <li><a href="/wiki/DesignSpark_Mechanical" title="DesignSpark Mechanical">DesignSpark Mechanical</a></li> <li><a href="/wiki/EasyCAD" class="mw-redirect" title="EasyCAD">EasyCAD</a></li> <li><a href="/wiki/FastCAD" title="FastCAD">FastCAD</a></li> <li><a href="/wiki/FINE_MEP" title="FINE MEP">FINE</a></li> <li><a href="/wiki/FORAN_System" title="FORAN System">FORAN</a></li> <li><a href="/wiki/Fusion_360" title="Fusion 360">Fusion 360</a></li> <li><a href="/wiki/GstarCAD" title="GstarCAD">GstarCAD</a></li> <li><a href="/wiki/IRONCAD" title="IRONCAD">IRONCAD</a></li> <li><a href="/wiki/KeyCreator" title="KeyCreator">KeyCreator</a></li> <li><a href="/wiki/MEDUSA" title="MEDUSA">MEDUSA</a></li> <li><a href="/wiki/MicroStation" title="MicroStation">MicroStation</a></li> <li><a href="/wiki/Siemens_NX" title="Siemens NX">NX</a></li> <li><a href="/wiki/Onshape" title="Onshape">Onshape</a></li> <li><a href="/wiki/PDMS_(software)" title="PDMS (software)">PDMS</a></li> <li><a href="/wiki/Pro/DESKTOP" title="Pro/DESKTOP">Pro/DESKTOP</a></li> <li><a href="/wiki/Rhinoceros_3D" title="Rhinoceros 3D">Rhinoceros 3D</a> <ul><li><a href="/wiki/Grasshopper_3D" title="Grasshopper 3D">Grasshopper 3D</a></li></ul></li> <li><a href="/wiki/RattleCAD#Source_closing" title="RattleCAD">rattleCAD 4.0</a></li> <li><a href="/wiki/RUCAPS" title="RUCAPS">RUCAPS</a></li> <li><a href="/wiki/Solid_Edge" title="Solid Edge">Solid Edge</a></li> <li><a href="/wiki/SolidWorks" title="SolidWorks">SolidWorks</a></li> <li><a href="/wiki/SpaceClaim" title="SpaceClaim">SpaceClaim</a></li> <li><a href="/wiki/T-FLEX_CAD" title="T-FLEX CAD">T-FLEX CAD</a></li> <li><a href="/wiki/Tinkercad" title="Tinkercad">Tinkercad</a></li> <li><a href="/wiki/TurboCAD" title="TurboCAD">TurboCAD</a></li> <li><a href="/wiki/VariCAD" title="VariCAD">VariCAD</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Electronic_design_automation" title="Electronic design automation">Electrical</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Allegro_(CAD_software)" class="mw-redirect" title="Allegro (CAD software)">Allegro</a></li> <li><a href="/wiki/Altium_Designer" title="Altium Designer">Altium Designer</a></li> <li><a href="/wiki/AutoCAD_Electrical" class="mw-redirect" title="AutoCAD Electrical">AutoCAD Electrical</a></li> <li><a href="/wiki/Autotrax" title="Autotrax">Autotrax</a></li> <li><a href="/wiki/BoardStation" class="mw-redirect" title="BoardStation">BoardStation</a></li> <li><a href="/wiki/CADSTAR" title="CADSTAR">CADSTAR</a></li> <li><a href="/wiki/CircuitMaker" title="CircuitMaker">CircuitMaker</a></li> <li><a href="/wiki/CR-2000" class="mw-redirect" title="CR-2000">CR-2000</a></li> <li><a href="/wiki/CR-3000" class="mw-redirect" title="CR-3000">CR-3000</a></li> <li><a href="/wiki/CR-5000" title="CR-5000">CR-5000</a></li> <li><a href="/wiki/CR-8000" title="CR-8000">CR-8000</a></li> <li><a href="/wiki/Delta_Design" class="mw-redirect" title="Delta Design">Delta Design</a></li> <li><a href="/wiki/DesignSpark_PCB" title="DesignSpark PCB">DesignSpark PCB</a></li> <li><a href="/wiki/DipTrace" title="DipTrace">DipTrace</a></li> <li><a href="/wiki/EAGLE_(program)" title="EAGLE (program)">EAGLE</a></li> <li><a href="/wiki/EasyEDA" title="EasyEDA">EasyEDA</a></li> <li><a href="/wiki/Easytrax" class="mw-redirect" title="Easytrax">Easytrax</a></li> <li><a href="/wiki/FreeStyle_(CAD_software)" class="mw-redirect" title="FreeStyle (CAD software)">FreeStyle</a></li> <li><a href="/wiki/IntegraStation" class="mw-redirect" title="IntegraStation">IntegraStation</a></li> <li><a href="/wiki/LTspice" title="LTspice">LTspice</a></li> <li><a href="/wiki/Micro-Cap" title="Micro-Cap">Micro-Cap</a></li> <li><a href="/wiki/NI_Multisim" title="NI Multisim">Multisim</a></li> <li><a href="/wiki/OrCAD" title="OrCAD">OrCAD</a></li> <li><a href="/wiki/PADS_(CAD_software)" class="mw-redirect" title="PADS (CAD software)">PADS</a></li> <li><a href="/wiki/P-CAD" title="P-CAD">P-CAD</a></li> <li><a href="/wiki/PCB_(software)" title="PCB (software)">PCB</a></li> <li><a href="/wiki/Protel_(CAD_software)" class="mw-redirect" title="Protel (CAD software)">Protel</a></li> <li><a href="/wiki/Proteus_Design_Suite" title="Proteus Design Suite">Proteus</a></li> <li><a href="/wiki/Pulsonix" title="Pulsonix">Pulsonix</a></li> <li><a href="/wiki/SolidWorks" title="SolidWorks">SolidWorks Electrical</a></li> <li><a href="/wiki/TangoPCB" class="mw-redirect" title="TangoPCB">Tango</a></li> <li><a href="/wiki/TARGET_(CAD_software)" title="TARGET (CAD software)">TARGET</a></li> <li><a href="/wiki/TopoR" title="TopoR">TopoR</a></li> <li><a href="/wiki/NI_Ultiboard" title="NI Ultiboard">Ultiboard</a></li> <li><a href="/wiki/Upverter" title="Upverter">Upverter</a></li> <li><a href="/wiki/Xpedition_(CAD_software)" class="mw-redirect" title="Xpedition (CAD software)">Xpedition</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/File_format" title="File format">File formats</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3D_Manufacturing_Format" title="3D Manufacturing Format">3MF</a></li> <li><a href="/wiki/ACIS#File_format" title="ACIS">ACIS</a></li> <li><a href="/wiki/Additive_manufacturing_file_format" title="Additive manufacturing file format">AMF</a></li> <li><a href="/wiki/C3D_Toolkit" title="C3D Toolkit">C3D</a></li> <li><a href="/wiki/KeyCreator" title="KeyCreator">CKD</a></li> <li><a href="/wiki/Specctra" title="Specctra">DSN</a></li> <li><a href="/wiki/Design_Web_Format" title="Design Web Format">DWF</a></li> <li><a href="/wiki/Open_Packaging_Conventions" title="Open Packaging Conventions">DWFX</a></li> <li><a href="/wiki/.dwg" title=".dwg">DWG</a></li> <li><a href="/wiki/AutoCAD_DXF" title="AutoCAD DXF">DXF</a></li> <li><a href="/wiki/IGES" title="IGES">IGES</a></li> <li><a href="/wiki/Wavefront_.obj_file" title="Wavefront .obj file">OBJ</a></li> <li><a href="/wiki/Open_Design_Alliance" title="Open Design Alliance">OpenDWG</a></li> <li><a href="/wiki/PLY_(file_format)" title="PLY (file format)">PLY</a></li> <li><a href="/wiki/PSpice_circuit_file" class="mw-redirect" title="PSpice circuit file">PSpice</a></li> <li><a href="/wiki/Specctra" title="Specctra">SES</a></li> <li><a href="/wiki/ISO_10303" title="ISO 10303">STEP</a></li> <li><a href="/wiki/STL_(file_format)" title="STL (file format)">STL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Geometric_modeling_kernel" title="Geometric modeling kernel">Modeling<br />kernels</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ACIS" title="ACIS">ACIS</a></li> <li><a href="/wiki/C3D_Toolkit" title="C3D Toolkit">C3D</a></li> <li><a class="mw-selflink selflink">Open Cascade Technology</a></li> <li><a href="/wiki/Parasolid" title="Parasolid">Parasolid</a></li> <li><a href="/wiki/Russian_Geometric_Kernel" title="Russian Geometric Kernel">RGK</a></li> <li><a href="/wiki/Romulus_(modelling_kernel)" title="Romulus (modelling kernel)">Romulus</a></li> <li><a href="/wiki/KernelCAD" class="mw-redirect" title="KernelCAD">KernelCAD</a></li> <li><a href="/wiki/ShapeManager" title="ShapeManager">ShapeManager</a></li> <li><a href="/wiki/Teigha" class="mw-redirect" title="Teigha">Teigha</a></li> <li><a href="/wiki/IntelliCAD" title="IntelliCAD">IntelliCAD</a></li> <li><a href="/wiki/Solid_Modeling_Solutions" title="Solid Modeling Solutions">SMLib</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Historic</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DAC-1" title="DAC-1">DAC-1</a> (1963)</li> <li><a href="/wiki/Sketchpad" title="Sketchpad">Sketchpad</a> (1963)</li> <li><a href="/wiki/UNISURF" title="UNISURF">UNISURF</a> (1968)</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><a href="/wiki/Comparison_of_computer-aided_design_software" title="Comparison of computer-aided design software">Comparison</a> • <a href="/wiki/History_of_CAD_software" title="History of CAD software">History</a></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="CAM_software" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:CAM_software" title="Template:CAM software"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:CAM_software" title="Template talk:CAM software"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:CAM_software" title="Special:EditPage/Template:CAM software"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="CAM_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Computer-aided_manufacturing" title="Computer-aided manufacturing">CAM</a> software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Open source</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/LinuxCNC" title="LinuxCNC">LinuxCNC</a></li> <li><a class="mw-selflink selflink">Open Cascade Technology</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Proprietary</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CATIA" title="CATIA">CATIA</a></li> <li><a href="/w/index.php?title=Easymill&action=edit&redlink=1" class="new" title="Easymill (page does not exist)">Easymill</a></li> <li><a href="/wiki/PTC_Creo_Elements/Pro" class="mw-redirect" title="PTC Creo Elements/Pro">Creo Elements/Pro</a></li> <li><a href="/wiki/FORAN_System" title="FORAN System">FORAN</a></li> <li><a href="/wiki/Mastercam" title="Mastercam">Mastercam</a></li> <li><a href="/wiki/MazaCAM" title="MazaCAM">MazaCAM</a></li> <li><a href="/wiki/NC-CAM" title="NC-CAM">NC-CAM</a></li> <li><a href="/wiki/PowerMILL" title="PowerMILL">PowerMILL</a></li> <li><a href="/wiki/Siemens_NX" title="Siemens NX">Siemens NX</a></li> <li><a href="/wiki/SmartCAM" title="SmartCAM">SmartCAM</a></li> <li><a href="/wiki/SprutCAM" title="SprutCAM">SprutCAM</a></li> <li><a href="/wiki/VoluMill" title="VoluMill">VoluMill</a></li> <li><a href="/wiki/WorkNC" title="WorkNC">WorkNC</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="CAE_software" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:CAE_software" title="Template:CAE software"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:CAE_software" title="Template talk:CAE software"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:CAE_software" title="Special:EditPage/Template:CAE software"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="CAE_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Computer-aided_engineering" title="Computer-aided engineering">CAE</a> software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Open-source</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Advanced_Simulation_Library" title="Advanced Simulation Library">Advanced Simulation Library</a></li> <li><a href="/wiki/Calculix" title="Calculix">Calculix</a></li> <li><a href="/wiki/Code_Saturne" title="Code Saturne">Code Saturne</a></li> <li><a href="/wiki/Deal.II" title="Deal.II">deal.II</a></li> <li><a href="/wiki/Elmer_FEM_solver" title="Elmer FEM solver">Elmer</a></li> <li><a href="/wiki/FEBio" title="FEBio">FEBio</a></li> <li><a href="/wiki/FEniCS_Project" title="FEniCS Project">FEniCS</a></li> <li><a href="/wiki/FreeFem%2B%2B" title="FreeFem++">FreeFem++</a></li> <li><a href="/wiki/Gerris_(software)" title="Gerris (software)">Gerris</a></li> <li><a href="/wiki/GetFEM%2B%2B" title="GetFEM++">GetFEM++</a></li> <li><a href="/wiki/MOOSE_(software)" title="MOOSE (software)">MOOSE</a></li> <li><a href="/wiki/Nek5000" title="Nek5000">Nek5000</a></li> <li><a href="/wiki/Nektar%2B%2B" title="Nektar++">Nektar++</a></li> <li><a class="mw-selflink selflink">Open Cascade Technology</a></li> <li><a href="/wiki/OpenFOAM" title="OpenFOAM">OpenFOAM</a></li> <li><a href="/wiki/QBlade" title="QBlade">QBlade</a></li> <li><a href="/wiki/Salome_(software)" title="Salome (software)">Salome</a></li> <li><a href="/wiki/Stanford_University_Unstructured" class="mw-redirect" title="Stanford University Unstructured">SU2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Proprietary</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abaqus" title="Abaqus">Abaqus</a></li> <li><a href="/wiki/Actran" title="Actran">Actran</a></li> <li><a href="/wiki/ADINA" title="ADINA">ADINA</a></li> <li><a href="/wiki/Altair_Engineering" title="Altair Engineering">Altair</a></li> <li><a href="/wiki/Ansys" title="Ansys">Ansys</a></li> <li><a href="/wiki/Autodesk_Simulation" title="Autodesk Simulation">Autodesk Simulation</a></li> <li><a href="/wiki/CATIA" title="CATIA">CATIA</a></li> <li><a href="/wiki/COMSOL_Multiphysics" title="COMSOL Multiphysics">COMSOL Multiphysics</a></li> <li><a href="/wiki/Computer_Simulation_Technology" class="mw-redirect" title="Computer Simulation Technology">CST Studio Suite</a></li> <li><a href="/wiki/DIANA_FEA" title="DIANA FEA">DIANA</a></li> <li><a href="/wiki/FEATool_Multiphysics" title="FEATool Multiphysics">FEATool Multiphysics</a></li> <li><a href="/wiki/Femap" title="Femap">Femap</a></li> <li><a href="/wiki/Fluent,_Inc." class="mw-redirect" title="Fluent, Inc.">Fluent</a></li> <li><a href="/wiki/FORAN_System" title="FORAN System">FORAN</a></li> <li><a href="/wiki/JCMsuite" title="JCMsuite">JCMsuite</a></li> <li><a href="/wiki/JMAG" title="JMAG">JMAG</a></li> <li><a href="/wiki/KIVA_(software)" title="KIVA (software)">KIVA</a></li> <li><a href="/wiki/LS-DYNA" title="LS-DYNA">LS-DYNA</a></li> <li><a href="/wiki/MSC_Adams" title="MSC Adams">MSC_Adams</a></li> <li><a href="/wiki/MSC_Marc" title="MSC Marc">MSC_Marc</a></li> <li><a href="/w/index.php?title=Midas_Civil&action=edit&redlink=1" class="new" title="Midas Civil (page does not exist)">Midas Civil</a></li> <li><a href="/wiki/Nastran" title="Nastran">Nastran</a></li> <li><a href="/wiki/PTC_Creo" title="PTC Creo">PTC Creo</a></li> <li><a href="/wiki/RFEM" title="RFEM">RFEM</a></li> <li><a href="/wiki/SESAM_(FEM)" class="mw-redirect" title="SESAM (FEM)">Sesam</a></li> <li><a href="/wiki/Siemens_NX" title="Siemens NX">Siemens NX</a></li> <li><a href="/wiki/Simcenter_STAR-CCM%2B" title="Simcenter STAR-CCM+">Simcenter STAR-CCM+</a></li> <li><a href="/wiki/SolidWorks" title="SolidWorks">SolidWorks</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Cloud-based</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SimScale" title="SimScale">SimScale</a></li> <li><a href="/wiki/CONSELF" title="CONSELF">CONSELF</a></li> <li><a href="/wiki/Onshape" title="Onshape">Onshape</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Open_Cascade_Technology&oldid=1251729322">https://en.wikipedia.org/w/index.php?title=Open_Cascade_Technology&oldid=1251729322</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Free_computer-aided_design_software" title="Category:Free computer-aided design software">Free computer-aided design software</a></li><li><a href="/wiki/Category:Free_software_programmed_in_C%2B%2B" title="Category:Free software programmed in C++">Free software programmed in C++</a></li><li><a href="/wiki/Category:Computer-aided_design_software_for_Linux" title="Category:Computer-aided design software for Linux">Computer-aided design software for Linux</a></li><li><a href="/wiki/Category:Computer-aided_manufacturing_software_for_Linux" title="Category:Computer-aided manufacturing software for Linux">Computer-aided manufacturing software for Linux</a></li><li><a href="/wiki/Category:Computer-aided_engineering_software_for_Linux" title="Category:Computer-aided engineering software for Linux">Computer-aided engineering software for Linux</a></li><li><a href="/wiki/Category:3D_graphics_software" title="Category:3D graphics software">3D graphics software</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Webarchive_template_wayback_links" title="Category:Webarchive template wayback links">Webarchive template wayback links</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Use_dmy_dates_from_August_2017" title="Category:Use dmy dates from August 2017">Use dmy dates from August 2017</a></li><li><a href="/wiki/Category:Articles_lacking_reliable_references_from_April_2007" title="Category:Articles lacking reliable references from April 2007">Articles lacking reliable references from April 2007</a></li><li><a href="/wiki/Category:All_articles_lacking_reliable_references" title="Category:All articles lacking reliable references">All articles lacking reliable references</a></li><li><a href="/wiki/Category:Wikipedia_articles_containing_buzzwords_from_January_2022" title="Category:Wikipedia articles containing buzzwords from January 2022">Wikipedia articles containing buzzwords from January 2022</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 17 October 2024, at 19:09<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. By using this site, you agree to the <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use" class="extiw" title="foundation:Special:MyLanguage/Policy:Terms of Use">Terms of Use</a> and <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy" class="extiw" title="foundation:Special:MyLanguage/Policy:Privacy policy">Privacy Policy</a>. Wikipedia® is a registered trademark of the <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, a non-profit organization.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=Open_Cascade_Technology&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-chdqs","wgBackendResponseTime":141,"wgPageParseReport":{"limitreport":{"cputime":"0.643","walltime":"0.827","ppvisitednodes":{"value":3001,"limit":1000000},"postexpandincludesize":{"value":113744,"limit":2097152},"templateargumentsize":{"value":5044,"limit":2097152},"expansiondepth":{"value":21,"limit":100},"expensivefunctioncount":{"value":7,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":126813,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 707.406 1 -total"," 37.60% 266.020 2 Template:Infobox"," 32.86% 232.478 1 Template:Infobox_software"," 23.10% 163.410 1 Template:Infobox_software/simple"," 20.59% 145.634 1 Template:Reflist"," 17.25% 122.005 4 Template:Wikidata"," 15.22% 107.686 28 Template:Cite_web"," 13.46% 95.230 5 Template:Navbox"," 12.57% 88.951 1 Template:CAD_software"," 9.90% 70.026 1 Template:Short_description"]},"scribunto":{"limitreport-timeusage":{"value":"0.391","limit":"10.000"},"limitreport-memusage":{"value":8359077,"limit":52428800}},"cachereport":{"origin":"mw-api-int.codfw.main-849f99967d-lbgq6","timestamp":"20241124230302","ttl":521821,"transientcontent":true}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Open Cascade Technology","url":"https:\/\/en.wikipedia.org\/wiki\/Open_Cascade_Technology","sameAs":"http:\/\/www.wikidata.org\/entity\/Q1760165","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q1760165","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2005-10-31T02:24:49Z","dateModified":"2024-10-17T19:09:35Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/c\/c5\/Opencascadedemo.jpg","headline":"platform for 3D CAD, CAM, and CAE"}</script> </body> </html>