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Available in 54 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-54" 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">54 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A5%D8%B3%D9%82%D8%A7%D8%B7_%D8%A7%D9%84%D8%AE%D8%B1%D8%A7%D8%A6%D8%B7" title="إسقاط الخرائط – Arabic" lang="ar" hreflang="ar" data-title="إسقاط الخرائط" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Proyeici%C3%B3n_cartogr%C3%A1fica" title="Proyeición cartográfica – Asturian" lang="ast" hreflang="ast" data-title="Proyeición cartográfica" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Kartoqrafik_proyeksiyalar" title="Kartoqrafik proyeksiyalar – Azerbaijani" lang="az" hreflang="az" data-title="Kartoqrafik proyeksiyalar" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AE%E0%A6%BE%E0%A6%A8%E0%A6%9A%E0%A6%BF%E0%A6%A4%E0%A7%8D%E0%A6%B0_%E0%A6%85%E0%A6%AD%E0%A6%BF%E0%A6%95%E0%A7%8D%E0%A6%B7%E0%A7%87%E0%A6%AA" title="মানচিত্র অভিক্ষেপ – Bangla" lang="bn" hreflang="bn" data-title="মানচিত্র অভিক্ষেপ" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%BA_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%86%D0%B8%D1%8F%D0%BB%D0%B0%D1%80" title="Картографик проекциялар – Bashkir" lang="ba" hreflang="ba" data-title="Картографик проекциялар" data-language-autonym="Башҡортса" data-language-local-name="Bashkir" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%B0%D0%B3%D1%80%D0%B0%D1%84%D1%96%D1%87%D0%BD%D0%B0%D1%8F_%D0%BF%D1%80%D0%B0%D0%B5%D0%BA%D1%86%D1%8B%D1%8F" title="Картаграфічная праекцыя – Belarusian" lang="be" hreflang="be" data-title="Картаграфічная праекцыя" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%A8%E0%A4%95%E0%A5%8D%E0%A4%B6%E0%A4%BE_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%9C%E0%A5%87%E0%A4%95%E0%A5%8D%E0%A4%B6%E0%A4%A8" title="नक्शा प्रोजेक्शन – Bhojpuri" lang="bh" hreflang="bh" data-title="नक्शा प्रोजेक्शन" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D1%81%D0%BA%D0%B0_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%86%D0%B8%D1%8F" title="Картографска проекция – Bulgarian" lang="bg" hreflang="bg" data-title="Картографска проекция" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Projecci%C3%B3_cartogr%C3%A0fica" title="Projecció cartogràfica – Catalan" lang="ca" hreflang="ca" data-title="Projecció cartogràfica" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Mapov%C3%A9_zobrazen%C3%AD" title="Mapové zobrazení – Czech" lang="cs" hreflang="cs" data-title="Mapové zobrazení" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Kortprojektion" title="Kortprojektion – Danish" lang="da" hreflang="da" data-title="Kortprojektion" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Kartennetzentwurf" title="Kartennetzentwurf – German" lang="de" hreflang="de" data-title="Kartennetzentwurf" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Kaardiprojektsioon" title="Kaardiprojektsioon – Estonian" lang="et" hreflang="et" data-title="Kaardiprojektsioon" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A7%CE%B1%CF%81%CF%84%CE%BF%CE%B3%CF%81%CE%B1%CF%86%CE%B9%CE%BA%CE%AE_%CF%80%CF%81%CE%BF%CE%B2%CE%BF%CE%BB%CE%AE" title="Χαρτογραφική προβολή – Greek" lang="el" hreflang="el" data-title="Χαρτογραφική προβολή" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Map_projection" title="Map projection – English" lang="en" hreflang="en" data-title="Map projection" data-language-autonym="English" data-language-local-name="English" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Proyecci%C3%B3n_cartogr%C3%A1fica" title="Proyección cartográfica – Spanish" lang="es" hreflang="es" data-title="Proyección cartográfica" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Proiekzio_kartografiko" title="Proiekzio kartografiko – Basque" lang="eu" hreflang="eu" data-title="Proiekzio kartografiko" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%DB%8C%D8%B3%D8%AA%D9%85_%D8%AA%D8%B5%D9%88%DB%8C%D8%B1_%D9%86%D9%82%D8%B4%D9%87" title="سیستم تصویر نقشه – Persian" lang="fa" hreflang="fa" data-title="سیستم تصویر نقشه" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Projection_cartographique" title="Projection cartographique – French" lang="fr" hreflang="fr" data-title="Projection cartographique" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Teilgean_l%C3%A9arsc%C3%A1ile" title="Teilgean léarscáile – Irish" lang="ga" hreflang="ga" data-title="Teilgean léarscáile" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Proxecci%C3%B3n_cartogr%C3%A1fica" title="Proxección cartográfica – Galician" lang="gl" hreflang="gl" data-title="Proxección cartográfica" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%80%EB%8F%84_%ED%88%AC%EC%98%81%EB%B2%95" title="지도 투영법 – Korean" lang="ko" hreflang="ko" data-title="지도 투영법" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A4%BE%E0%A4%A8%E0%A4%9A%E0%A4%BF%E0%A4%A4%E0%A5%8D%E0%A4%B0_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A5%87%E0%A4%AA" title="मानचित्र प्रक्षेप – Hindi" lang="hi" hreflang="hi" data-title="मानचित्र प्रक्षेप" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kartografska_projekcija" title="Kartografska projekcija – Croatian" lang="hr" hreflang="hr" data-title="Kartografska projekcija" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Proyeksi_peta" title="Proyeksi peta – Indonesian" lang="id" hreflang="id" data-title="Proyeksi peta" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Kortav%C3%B6rpun" title="Kortavörpun – Icelandic" lang="is" hreflang="is" data-title="Kortavörpun" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Proiezione_cartografica" title="Proiezione cartografica – Italian" lang="it" hreflang="it" data-title="Proiezione cartografica" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%94%D7%99%D7%98%D7%9C_(%D7%99%D7%99%D7%A6%D7%95%D7%92_%D7%92%D7%A8%D7%A4%D7%99)" title="היטל (ייצוג גרפי) – Hebrew" lang="he" hreflang="he" data-title="היטל (ייצוג גרפי)" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F%D0%BB%D1%8B%D2%9B_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%86%D0%B8%D1%8F" title="Картографиялық проекция – Kazakh" lang="kk" hreflang="kk" data-title="Картографиялық проекция" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Pwojeksyon_konik" title="Pwojeksyon konik – Haitian Creole" lang="ht" hreflang="ht" data-title="Pwojeksyon konik" data-language-autonym="Kreyòl ayisyen" data-language-local-name="Haitian Creole" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F%D0%BB%D1%8B%D0%BA_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%86%D0%B8%D1%8F%D0%BB%D0%B0%D1%80" title="Картографиялык проекциялар – Kyrgyz" lang="ky" hreflang="ky" data-title="Картографиялык проекциялар" data-language-autonym="Кыргызча" data-language-local-name="Kyrgyz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Projektiounsmodell" title="Projektiounsmodell – Luxembourgish" lang="lb" hreflang="lb" data-title="Projektiounsmodell" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxembourgish" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Kartografin%C4%97_projekcija" title="Kartografinė projekcija – Lithuanian" lang="lt" hreflang="lt" data-title="Kartografinė projekcija" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Vet%C3%BClettan" title="Vetülettan – Hungarian" lang="hu" hreflang="hu" data-title="Vetülettan" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D1%81%D0%BA%D0%B0_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%86%D0%B8%D1%98%D0%B0" title="Картографска проекција – Macedonian" lang="mk" hreflang="mk" data-title="Картографска проекција" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Unjuran_peta" title="Unjuran peta – Malay" lang="ms" hreflang="ms" data-title="Unjuran peta" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Kaartprojectie" title="Kaartprojectie – Dutch" lang="nl" hreflang="nl" data-title="Kaartprojectie" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%8A%95%E5%BD%B1%E6%B3%95_(%E5%9C%B0%E5%9B%B3)" title="投影法 (地図) – Japanese" lang="ja" hreflang="ja" data-title="投影法 (地図)" 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-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Kartprojeksjon" title="Kartprojeksjon – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Kartprojeksjon" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Projeccion_cartografica" title="Projeccion cartografica – Occitan" lang="oc" hreflang="oc" data-title="Projeccion cartografica" data-language-autonym="Occitan" data-language-local-name="Occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Xaritagrafik_proyeksiyalar" title="Xaritagrafik proyeksiyalar – Uzbek" lang="uz" hreflang="uz" data-title="Xaritagrafik proyeksiyalar" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Odwzorowanie_kartograficzne" title="Odwzorowanie kartograficzne – Polish" lang="pl" hreflang="pl" data-title="Odwzorowanie kartograficzne" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Proje%C3%A7%C3%A3o_cartogr%C3%A1fica" title="Projeção cartográfica – Portuguese" lang="pt" hreflang="pt" data-title="Projeção cartográfica" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Proiec%C8%9Bie_cartografic%C4%83" title="Proiecție cartografică – Romanian" lang="ro" hreflang="ro" data-title="Proiecție cartografică" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%86%D0%B8%D1%8F" title="Картографическая проекция – Russian" lang="ru" hreflang="ru" data-title="Картографическая проекция" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Kartografska_projekcija" title="Kartografska projekcija – Slovenian" lang="sl" hreflang="sl" data-title="Kartografska projekcija" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D1%81%D0%BA%D0%B0_%D0%BF%D1%80%D0%BE%D1%98%D0%B5%D0%BA%D1%86%D0%B8%D1%98%D0%B0" title="Картографска пројекција – Serbian" lang="sr" hreflang="sr" data-title="Картографска пројекција" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Karttaprojektio" title="Karttaprojektio – Finnish" lang="fi" hreflang="fi" data-title="Karttaprojektio" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Kartprojektion" title="Kartprojektion – Swedish" lang="sv" hreflang="sv" data-title="Kartprojektion" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%AA%E0%B9%89%E0%B8%99%E0%B9%82%E0%B8%84%E0%B8%A3%E0%B8%87%E0%B9%81%E0%B8%9C%E0%B8%99%E0%B8%97%E0%B8%B5%E0%B9%88" title="เส้นโครงแผนที่ – Thai" lang="th" hreflang="th" data-title="เส้นโครงแผนที่" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Harita_projeksiyonu" title="Harita projeksiyonu – Turkish" lang="tr" hreflang="tr" data-title="Harita projeksiyonu" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D1%96%D1%87%D0%BD%D0%B0_%D0%BF%D1%80%D0%BE%D1%94%D0%BA%D1%86%D1%96%D1%8F" title="Картографічна проєкція – Ukrainian" lang="uk" hreflang="uk" data-title="Картографічна проєкція" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%9C%B0%E5%9C%96%E6%8A%95%E5%BD%B1" title="地圖投影 – Cantonese" lang="yue" hreflang="yue" data-title="地圖投影" data-language-autonym="粵語" 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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"><p>A <b>map projection</b> is a way of showing the surface of a three-dimensional <a href="/wiki/Sphere" title="Sphere">sphere</a> on a flat surface. Such projections are necessary to create <a href="/wiki/Map" title="Map">maps</a>. The problem with projections is that they change the surface in some way; this is called distortion. Depending on the purpose of the map, some distortions may be less bad. This is why <a href="/wiki/Cartography" title="Cartography">cartographer</a>s use different <a href="/wiki/Projection_(mathematics)" title="Projection (mathematics)">mathematical projections</a> for different maps. </p><p><a href="/wiki/Carl_Friedrich_Gauss" title="Carl Friedrich Gauss">Carl Friedrich Gauss</a> showed that is not possible to project the surface of a sphere to a plane, without distorting it. This <a href="/wiki/Theorem" title="Theorem">theorem</a> is known as <a href="/wiki/Theorema_egregium" title="Theorema egregium">Theorema egregium</a> today. </p><p>To understand the projections, it is easier to imagine a light source, a globe, and another geometric object. The light source shines "a shadow" of each point of the globe onto the geometric object. At the end the surface of the geometric object is unrolled, this yields the map. It is possible to tell the projections apart by the type of helper object used. </p> <ul><li>Using a plane gives azimuthal projections.</li> <li>Using a <a href="/wiki/Cone" title="Cone">cone</a> gives conical projections.</li> <li>Using a <a href="/wiki/Cylinder" title="Cylinder">cylinder</a> gives cylindrical ones.</li></ul> <ul><li>Cylindrical projections "put the sphere into a <a href="/wiki/Cylinder" title="Cylinder">cylinder</a>, and then unroll its surface". Examples of these are <a href="/wiki/Equirectangular_projection" title="Equirectangular projection">Equirectangular projection</a>, <a href="/wiki/Mercator_projection" title="Mercator projection">Mercator projection</a></li> <li>Psedocylindrincal: Same as cylindrical, but only applies to the main meridian and parallels.</li></ul> <div class="boilerplate metadata plainlinks" id="stub"><span typeof="mw:File"><a href="/wiki/File:Science-symbol-2.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Science-symbol-2.svg/30px-Science-symbol-2.svg.png" decoding="async" width="30" height="30" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Science-symbol-2.svg/45px-Science-symbol-2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Science-symbol-2.svg/60px-Science-symbol-2.svg.png 2x" data-file-width="87" data-file-height="87" /></a></span> <i>This <a href="/wiki/Wikipedia:Stub" title="Wikipedia:Stub">short article</a> about <a href="/wiki/Category:Science_stubs" title="Category:Science stubs">science</a> can be made longer. 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