1<!DOCTYPE html> 2<html lang="en-US" dir="ltr"> 3 <head> 4 <meta charset="utf-8"> 5 <meta name="viewport" content="width=device-width,initial-scale=1"> 6 <title>What is D3? | D3 by Observable</title> 7 <meta name="description" content="The JavaScript library for bespoke data visualization"> 8 <meta name="generator" content="VitePress v1.4.0"> 9 <link rel="preload stylesheet" href="/assets/style.CeCMf97_.css" as="style"> 10 11
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20 21 </head> 22 <body> 23 <div id="app"><div class="Layout" data-v-5d98c3a5><!--[--><!--]--><!--[--><span tabindex="-1" data-v-0f60ec36></span><a href="#VPContent" class="VPSkipLink visually-hidden" data-v-0f60ec36> Skip to content </a><!--]--><!----><header class="VPNav" data-v-5d98c3a5 data-v-ae24b3ad><div class="VPNavBar" data-v-ae24b3ad data-v-6aa21345><div class="wrapper" data-v-6aa21345><div class="container" data-v-6aa21345><div class="title" data-v-6aa21345><div class="VPNavBarTitle has-sidebar" data-v-6aa21345 data-v-ab179fa1><a class="title" href="/" data-v-ab179fa1><!--[--><!--]--><!--[--><img class="VPImage logo" src="/logo.svg" alt data-v-8426fc1a><!--]--><span data-v-ab179fa1>D3</span><!--[--><!--]--></a></div></div><div class="content" data-v-6aa21345><div class="content-body" data-v-6aa21345><!--[--><!--]--><div class="VPNavBarSearch search" data-v-6aa21345><!--[--><!----><div id="local-search"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search"><span class="DocSearch-Button-Container"><span class="vp-icon DocSearch-Search-Icon"></span><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"><kbd class="DocSearch-Button-Key"></kbd><kbd class="DocSearch-Button-Key">K</kbd></span></button></div><!--]--></div><!----><!----><!----><!----><div class="VPFlyout VPNavBarExtra extra" data-v-6aa21345 data-v-bb2aa2f0 data-v-cf11d7a2><button type="button" class="button" aria-haspopup="true" aria-expanded="false" aria-label="extra navigation" data-v-cf11d7a2><span class="vpi-more-horizontal icon" data-v-cf11d7a2></span></button><div class="menu" data-v-cf11d7a2><div class="VPMenu" data-v-cf11d7a2 data-v-b98bc113><!----><!--[--><!--]--></div></div></div><!--[--><!--[--><!--[--><div style="display:flex;gap:1rem;"><!--[--><a target="_blank" title="7.9.0 release notes" href="https://github.com/d3/d3/releases" data-v-4244fc58><span data-v-4244fc58>7.9.0</span></a><a target="_blank" data-decoration="â " title="112,966 GitHub stars" href="https://github.com/d3/d3" data-v-4244fc58><span data-v-4244fc58>GitHubï¸ 113.0k</span></a><a class="mobile" target="_blank" title="112,966 GitHub stars" href="https://github.com/d3/d3" data-v-4244fc58><svg xmlns="http://www.w3.org/2000/svg" width="21" height="21" viewBox="0 0 21 21" fill="none" data-v-4244fc58><path d="M19.625 5.60534C18.7083 4.03477 17.4649 2.79135 15.8945 1.87479C14.3238 0.958185 12.6091 0.5 10.7492 0.5C8.88947 0.5 7.17422 0.958325 5.60388 1.87479C4.0333 2.7913 2.78997 4.03477 1.87332 5.60534C0.956814 7.17587 0.498535 8.89089 0.498535 10.7504C0.498535 12.984 1.15021 14.9926 2.4539 16.7766C3.75744 18.5607 5.44142 19.7952 7.50571 20.4803C7.746 20.5249 7.92388 20.4936 8.03954 20.387C8.15524 20.2804 8.21302 20.1467 8.21302 19.9868C8.21302 19.9601 8.21073 19.7199 8.20629 19.266C8.20171 18.8122 8.19956 18.4162 8.19956 18.0783L7.89256 18.1315C7.69682 18.1673 7.44989 18.1825 7.15178 18.1782C6.8538 18.174 6.54446 18.1428 6.22419 18.0847C5.90377 18.0272 5.60575 17.8937 5.32988 17.6846C5.05416 17.4755 4.85842 17.2018 4.74272 16.8639L4.60925 16.5568C4.52029 16.3523 4.38023 16.1251 4.18888 15.8761C3.99754 15.6269 3.80405 15.458 3.60831 15.369L3.51486 15.3021C3.45259 15.2577 3.39481 15.204 3.34138 15.1418C3.28799 15.0796 3.24802 15.0173 3.22132 14.955C3.19458 14.8926 3.21674 14.8414 3.28804 14.8012C3.35933 14.761 3.48817 14.7416 3.67512 14.7416L3.94196 14.7814C4.11993 14.8171 4.34007 14.9236 4.60266 15.1017C4.86511 15.2796 5.08085 15.5109 5.24994 15.7956C5.4547 16.1605 5.7014 16.4385 5.99072 16.6299C6.27982 16.8212 6.5713 16.9167 6.86488 16.9167C7.15846 16.9167 7.41203 16.8945 7.62567 16.8502C7.83908 16.8057 8.0393 16.7388 8.22625 16.6499C8.30633 16.0535 8.52437 15.5953 8.88017 15.275C8.37304 15.2217 7.9171 15.1414 7.51212 15.0347C7.10736 14.9278 6.6891 14.7544 6.25761 14.5139C5.82589 14.2738 5.46774 13.9756 5.18309 13.6198C4.89839 13.2639 4.66474 12.7966 4.48247 12.2183C4.3001 11.6399 4.20889 10.9726 4.20889 10.2163C4.20889 9.13941 4.56044 8.22304 5.26341 7.46665C4.93411 6.65705 4.96519 5.74947 5.35676 4.744C5.61482 4.66382 5.9975 4.72399 6.50463 4.92412C7.01186 5.12434 7.38323 5.29587 7.61912 5.43808C7.85502 5.58024 8.04402 5.70071 8.18642 5.79842C9.01411 5.56715 9.86825 5.45149 10.7491 5.45149C11.6299 5.45149 12.4843 5.56715 13.312 5.79842L13.8192 5.47823C14.166 5.26459 14.5756 5.06881 15.0469 4.89083C15.5185 4.71295 15.8791 4.66396 16.1284 4.74414C16.5286 5.74966 16.5643 6.65719 16.2349 7.46679C16.9378 8.22318 17.2895 9.13978 17.2895 10.2164C17.2895 10.9727 17.198 11.6421 17.0159 12.225C16.8336 12.808 16.5979 13.2749 16.3088 13.6265C16.0194
2313.9781 15.659 14.274 15.2275 14.5141C14.7959 14.7544 14.3775 14.9278 13.9728 15.0347C13.5678 15.1415 13.1119 15.2219 12.6047 15.2752C13.0673 15.6755 13.2986 16.3073 13.2986 17.1704V19.9864C13.2986 20.1464 13.3542 20.2799 13.4656 20.3867C13.5768 20.4932 13.7524 20.5246 13.9927 20.4799C16.0573 19.7949 17.7413 18.5603 19.0448 16.7762C20.3481 14.9922 21 12.9837 21 10.75C20.9996 8.89075 20.541 7.17587 19.625 5.60534Z" fill="currentColor" data-v-4244fc58></path></svg></a><!--]--><observable-made-by></observable-made-by></div><!--]--><!--]--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-6aa21345 data-v-e5dd9c1c><span class="container" data-v-e5dd9c1c><span class="top" data-v-e5dd9c1c></span><span class="middle" data-v-e5dd9c1c></span><span class="bottom" data-v-e5dd9c1c></span></span></button></div></div></div></div><div class="divider" data-v-6aa21345><div class="divider-line" data-v-6aa21345></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-5d98c3a5 data-v-a6f0e41e><div class="container" data-v-a6f0e41e><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-a6f0e41e><span class="vpi-align-left menu-icon" data-v-a6f0e41e></span><span class="menu-text" data-v-a6f0e41e>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-a6f0e41e data-v-17a5e62e><button data-v-17a5e62e>Return to top</button><!----></div></div></div><aside class="VPSidebar" data-v-5d98c3a5 data-v-319d5ca6><div class="curtain" data-v-319d5ca6></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-319d5ca6><span class="visually-hidden" id="sidebar-aria-label" data-v-319d5ca6> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 has-active" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Introduction</h2><!----></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/what-is-d3" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>What is D3?</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/getting-started" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Getting started</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/api" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>API index</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link vp-external-link-icon link" href="https://observablehq.com/@d3/gallery?utm_source=d3js-org&utm_medium=page-nav&utm_campaign=try-observable" target="_blank" rel="external" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Examples</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Visualization</h2><!----></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-axis" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-axis</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-chord" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-chord</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-chord/chord" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Chords</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-chord/ribbon" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Ribbons</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-color" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-color</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-interpolate" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-interpolate</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-interpolate/value" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Value interpolation</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-interpolate/color" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Color interpolation</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-interpolate/transform" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Transform interpolation</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-interpolate/zoom" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Zoom interpolation</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-contour" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-contour</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-contour/contour" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Contour polygons</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-contour/density" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Density estimation</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-delaunay" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-delaunay</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-delaunay/delaunay" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Delaunay triangulations</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-delaunay/voronoi" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Voronoi diagrams</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-force</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force/simulation" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Force simulations</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force/center" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Center force</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force/collide" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Collide force</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force/link" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Link force</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force/many-body" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Many-body force</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-force/position" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Position forces</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-geo</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/path" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Paths</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-2 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/projection" data-v-b7550ba0><!--[--><h4 class="text" data-v-b7550ba0>Projections</h4><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/azimuthal" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Azimuthal projections</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/conic" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Conic projections</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/cylindrical" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Cylindrical projections</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/stream" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Streams</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/shape" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Spherical shapes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-geo/math" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Spherical math</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-hierarchy</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/hierarchy" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Hierarchies</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/stratify" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Stratify</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/tree" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Tree</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/cluster" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Cluster</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/partition" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Partition</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/pack" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Pack</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-hierarchy/treemap" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Treemap</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-path" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-path</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-polygon" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-polygon</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-quadtree" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-quadtree</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-scale</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/linear" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Linear scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/time" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Time scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/pow" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Pow scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/log" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Log scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/symlog" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Symlog scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/ordinal" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Ordinal scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/band" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Band scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/point" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Point scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/sequential" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Sequential scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/diverging" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Diverging scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/quantile" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Quantile scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/quantize" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Quantize scales</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale/threshold" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Threshold scales</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale-chromatic" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-scale-chromatic</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale-chromatic/categorical" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Categorical schemes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale-chromatic/cyclical" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Cyclical schemes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale-chromatic/diverging" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Diverging schemes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-scale-chromatic/sequential" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Sequential schemes</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-selection</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/selecting" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Selecting elements</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/modifying" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Modifying elements</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/joining" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Joining data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/events" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Handling events</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/control-flow" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Control flow</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/locals" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Local variables</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-selection/namespaces" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Namespaces</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-shape</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/arc" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Arcs</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/area" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Areas</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/curve" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Curves</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/line" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Lines</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/link" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Links</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/pie" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Pies</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/stack" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Stacks</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/symbol" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Symbols</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/radial-area" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Radial areas</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/radial-line" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Radial lines</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-shape/radial-link" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Radial links</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Animation</h2><!----></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-ease" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-ease</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-timer" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-timer</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-transition" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-transition</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-transition/selecting" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Selecting elements</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-transition/modifying" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Modifying elements</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-transition/timing" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Timing</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-transition/control-flow" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Control flow</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Interaction</h2><!----></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-brush" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-brush</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-dispatch" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-dispatch</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-drag" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-drag</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-zoom" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-zoom</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Data</h2><!----></div><div class="items" data-v-b7550ba0><!--[--><section class="VPSidebarItem level-1 collapsible collapsed is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array" data-v-b7550ba0><!--[-->
23<h3 class="text" data-v-b7550ba0>d3-array</h3><!--]--></a><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/add" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Adding numbers</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/bin" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Binning data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/bisect" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Bisecting data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/blur" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Blurring data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/group" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Grouping data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/intern" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Interning values</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/sets" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Set operations</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/sort" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Sorting data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/summarize" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Summarizing data</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/ticks" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Ticks</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-array/transform" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Transforming data</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-dsv" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-dsv</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-fetch" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-fetch</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-format" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-format</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-random" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-random</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-time" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>
23d3-time</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/d3-time-format" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>d3-time-format</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-3f215769 data-v-a5bbad30><div class="content" data-v-a5bbad30><div class="outline-marker" data-v-a5bbad30></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>On this page</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _what-is-d3" data-v-39a288b8><div><h1 id="what-is-d3" tabindex="-1">What is D3? <a class="header-anchor" href="#what-is-d3" aria-label="Permalink to "What is D3?"">â</a></h1><svg viewbox="0 -10 116 111" width="400" style="margin:1em 0;max-width:100%;overflow:visible;height:auto;"><path fill="currentColor" fill-opacity="0.3" d="M0,0 h7.75 a45.5,45.5 0 1 1 0,91 h-7.75 v-20 h7.75 a25.5,25.5 0 1 0 0,-51 h-7.75 z m36.2510,0 h32 a27.75,27.75 0 0 1 21.331,45.5 a27.75,27.75 0 0 1 -21.331,45.5 h-32 a53.6895,53.6895 0 0 0 18.7464,-20 h13.2526 a7.75,7.75 0 1 0 0,-15.5 h-7.75 a53.6895,53.6895 0 0 0 0,-20 h7.75 a7.75,7.75 0 1 0 0,-15.5 h-13.2526 a53.6895,53.6895 0 0 0 -18.7464,-20 z"></path><g fill="none" stroke="currentColor" stroke-width="0.2" stroke-opacity="0.3"><line x1="-100" x2="110" y1="0" y2="0"></line><line x1="-100" x2="110" y1="20" y2="20"></line><line x1="-100" x2="110" y1="35.5" y2="35.5"></line><line x1="-100" x2="110" y1="45.5" y2="45.5"></line><line x1="-100" x2="110" y1="55.5" y2="55.5"></line><line x1="-100" x2="110" y1="71" y2="71"></line><line x1="-100" x2="110" y1="91" y2="91"></line><line x1="0" x2="0" y1="-10" y2="101"></line><line x1="7.75" x2="7.75" y1="-10" y2="101"></line><line x1="60.5" x2="60.5" y1="-10" y2="101"></line><line x1="68.25" x2="68.25" y1="-10" y2="101"></line><line x1="96" x2="96" y1="-10" y2="101"></line></g><g fill="var(--vp-c-brand)"><circle cx="7.75" cy="45.5" r="0.75"></circle><circle cx="68.25" cy="27.75" r="0.75"></circle><circle cx="68.25" cy="63.25" r="0.75"></circle></g><g fill="currentColor"><circle cx="36.2510" cy="0" r="0.75"></circle><circle cx="54.9974" cy="20" r="0.75"></circle><circle cx="60.5" cy="35.5" r="0.75"></circle><circle cx="60.5" cy="55.5" r="0.75"></circle><circle cx="54.9974" cy="71" r="0.75"></circle><circle cx="36.2510" cy="91" r="0.75"></circle><circle cx="89.5807" cy="45.5" r="0.75"></circle></g><g fill="none" stroke="currentColor" stroke-width="0.2"><circle cx="7.75" cy="45.5" r="25.5"></circle><circle cx="7.75" cy="45.5" r="45.5"></circle><circle cx="7.75" cy="45.5" r="53.6895"></circle><circle cx="68.25" cy="27.75" r="7.75"></circle><circle cx="68.25" cy="27.75" r="27.75"></circle><circle cx="68.25" cy="63.25" r="7.75"></circle><circle cx="68.25" cy="63.25" r="27.75"></circle></g></svg><p><strong>D3</strong> (or <strong>D3.js</strong>) is a free, open-source JavaScript library for visualizing data. Its low-level approach built on web standards offers unparalleled flexibility in authoring dynamic, data-driven graphics. For more than a decade D3 has powered groundbreaking and award-winning visualizations, become a foundational building block of higher-level chart libraries, and fostered a vibrant community of data practitioners around the world.</p><p>D3 âslingshotted the field into growth, diversification and creativity that has been unprecedentedâ and âchanged how millions of data visualizations are created across newsrooms, websites, and personal portfolios,â remarked the Information is Beautiful <a href="https://nightingaledvs.com/information-is-beautiful-awards-test-of-time/" target="_blank" rel="external">2022 Test of Time Award</a>
23. The IEEE VIS <a href="https://ieeevis.org/year/2021/info/awards/test-of-time-awards" target="_blank" rel="external">2021 Test of Time Award</a> noted, âBy creating a framework that was compelling and easy for web developers to use to author interactive visualizations, the authors have undeniably helped to bring data visualization to the mainstream. [D3] is a cornerstone contribution to this conference specifically and more generally to the success of our field as a whole.â</p><p>D3 was created by Mike Bostock in 2011. Mike co-authored the <a href="http://vis.stanford.edu/papers/d3" target="_blank" rel="external">D3 paper</a> with Jeff Heer and Vadim Ogievetsky at Stanford. Jason Davies made major contributions to D3 from 2011 to 2013, most notably to D3âs geographic projection system. Philippe Rivière has been a major contributor to D3 and its documentation since 2016. Over the years, countless kind individuals have contributed to D3 by sharing code and ideas, by teaching and answering questions, and by bringing people together to further the practice of visualization. Mike and Philippe now maintain D3 and <a href="https://observablehq.com/plot" target="_blank" rel="external">Observable Plot</a> at <a href="https://observablehq.com" target="_blank" rel="external">Observable</a>.</p><h2 id="d3-is-a-low-level-toolbox" tabindex="-1">D3 is a low-level toolbox <a class="header-anchor" href="#d3-is-a-low-level-toolbox" aria-label="Permalink to "D3 is a low-level toolbox"">â</a></h2><p>D3 is not a charting library in the traditional sense. It has no concept of âchartsâ. When you visualize data with D3, you compose a variety of primitives.</p><p>To make a <a href="https://observablehq.com/@d3/stacked-area-chart/2" target="_blank" rel="external">stacked area chart</a>, you might use</p><ul><li>a <a href="./d3-dsv">CSV parser</a> to load data,</li><li>a <a href="./d3-scale/time">time scale</a> for horizontal position (<em>x</em>),</li><li>a <a href="./d3-scale/linear">linear scale</a> for vertical position (<em>y</em>),</li><li>an <a href="./d3-scale/ordinal">ordinal scale</a> and <a href="./d3-scale-chromatic/categorical">categorical scheme</a> for color,</li><li>a <a href="./d3-shape/stack">stack layout</a> for arranging values,</li><li>an <a href="./d3-shape/area">area shape</a> with a <a href="./d3-shape/curve">linear curve</a> for generating SVG path data,</li><li><a href="./d3-axis">axes</a> for documenting the position encodings, and</li><li><a href="./d3-selection">selections</a> for creating SVG elements.</li></ul><p>Thatâs a lot to take in, right? But take a deep breath â you donât have to learn everything at once. Each piece can be used independently, so you can learn them individually before you fit them together. D3 is not a single monolith but rather a suite of 30 discrete libraries (or âmodulesâ). We bundle these modules together for convenience rather than necessity so your tools are within reach as you iterate on your design.</p><p>What allâs in the D3 toolbox? 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transform="translate(284.25,1106.2513089005236)">d3-format<title>/D3/Data/d3-format</title></text></a><text y="0.32em" transform="translate(284.25,1106.2513089005236)">d3-format<title>/D3/Data/d3-format</title></text><a fill="inherit" href="./d3-random"><text y="0.32em" transform="translate(284.25,1118.1675392670159)">d3-random<title>/D3/Data/d3-random</title></text></a><text y="0.32em" transform="translate(284.25,1118.1675392670159)">d3-random<title>/D3/Data/d3-random</title></text><a fill="inherit" href="./d3-time"><text y="0.32em" transform="translate(284.25,1130.083769633508)">d3-time<title>
33/D3/Data/d3-time</title></text></a><text y="0.32em" transform="translate(284.25,1130.083769633508)">d3-time<title>/D3/Data/d3-time</title></text><a fill="inherit" href="./d3-time-format"><text y="0.32em" transform="translate(284.25,1142)">d3-time-format<title>/D3/Data/d3-time-format</title></text></a><text y="0.32em" transform="translate(284.25,1142)">d3-time-format<title>/D3/Data/d3-time-format</title></text><a fill="inherit" href="./d3-chord/chord"><text y="0.32em" transform="translate(426.125,69.53926701570681)">Chords<title>/D3/Visualization/d3-chord/Chords</title></text></a><text y="0.32em" transform="translate(426.125,69.53926701570681)">Chords<title>/D3/Visualization/d3-chord/Chords</title></text><a fill="inherit" href="./d3-chord/ribbon"><text y="0.32em" transform="translate(426.125,81.45549738219897)">Ribbons<title>/D3/Visualization/d3-chord/Ribbons</title></text></a><text y="0.32em" transform="translate(426.125,81.45549738219897)">Ribbons<title>/D3/Visualization/d3-chord/Ribbons</title></text><a fill="inherit" href="./d3-interpolate/value"><text y="0.32em" transform="translate(426.125,105.28795811518329)">Value interpolation<title>/D3/Visualization/d3-interpolate/Value interpolation</title></text></a><text y="0.32em" transform="translate(426.125,105.28795811518329)">Value interpolation<title>/D3/Visualization/d3-interpolate/Value interpolation</title></text><a fill="inherit" href="./d3-interpolate/color"><text y="0.32em" transform="translate(426.125,117.20418848167546)">Color interpolation<title>/D3/Visualization/d3-interpolate/Color interpolation</title></text></a><text y="0.32em" transform="translate(426.125,117.20418848167546)">Color interpolation<title>/D3/Visualization/d3-interpolate/Color interpolation</title></text><a fill="inherit" href="./d3-interpolate/transform"><text y="0.32em" transform="translate(426.125,129.12041884816747)">Transform interpolation<title>/D3/Visualization/d3-interpolate/Transform interpolation</title></text></a><text y="0.32em" transform="translate(426.125,129.12041884816747)">Transform interpolation<title>/D3/Visualization/d3-interpolate/Transform interpolation</title></text><a fill="inherit" href="./d3-interpolate/zoom"><text y="0.32em" transform="translate(426.125,141.03664921465963)">Zoom interpolation<title>/D3/Visualization/d3-interpolate/Zoom interpolation</title></text></a><text y="0.32em" transform="translate(426.125,141.03664921465963)">Zoom interpolation<title>/D3/Visualization/d3-interpolate/Zoom interpolation</title></text><a fill="inherit" href="./d3-contour/contour"><text y="0.32em" transform="translate(426.125,164.86910994764398)">Contour polygons<title>/D3/Visualization/d3-contour/Contour polygons</title></text></a><text y="0.32em" transform="translate(426.125,164.86910994764398)">Contour polygons<title>/D3/Visualization/d3-contour/Contour polygons</title></text><a fill="inherit" href="./d3-contour/density"><text y="0.32em" transform="translate(426.125,176.78534031413614)">Density estimation<title>/D3/Visualization/d3-contour/Density estimation</title></text></a><text y="0.32em" transform="translate(426.125,176.78534031413614)">Density estimation<title>/D3/Visualization/d3-contour/Density estimation</title></text><a fill="inherit" href="./d3-delaunay/delaunay"><text y="0.32em" transform="translate(426.125,200.61780104712042)">Delaunay triangulations<title>/D3/Visualization/d3-delaunay/Delaunay triangulations</title></text></a><text y="0.32em" transform="translate(426.125,200.61780104712042)">Delaunay triangulations<title>/D3/Visualization/d3-delaunay/Delaunay triangulations</title></text><a fill="inherit" href="./d3-delaunay/voronoi"><text y="0.32em" transform="translate(426.125,212.5340314136126)">Voronoi diagrams<title>/D3/Visualization/d3-delaunay/Voronoi diagrams</title></text></a><text y="0.32em" transform="translate(426.125,212.5340314136126)">Voronoi diagrams<title>/D3/Visualization/d3-delaunay/Voronoi diagrams</title></text><a fill="inherit" href="./d3-force/simulation"><text y="0.32em" transform="translate(426.125,236.3664921465969)">Force simulations<title>/D3/Visualization/d3-force/Force simulations</title></text></a><text y="0.32em" transform="translate(426.125,236.3664921465969)">Force simulations<title>/D3/Visualization/d3-force/Force simulations</title></text><a fill="inherit" href="./d3-force/center"><text y="0.32em" transform="translate(426.125,248.28272251308897)">Center force<title>/D3/Visualization/d3-force/Center force</title></text></a><text y="0.32em" transform="translate(426.125,248.28272251308897)">Center force<title>/D3/Visualization/d3-force/Center force</title></text><a fill="inherit" href="./d3-force/collide"><text y="0.32em" transform="translate(426.125,260.1989528795811)">Collide force<title>/D3/Visualization/d3-force/Collide force</title></text></a><text y="0.32em" transform="translate(426.125,260.1989528795811)">Collide force<title>/D3/Visualization/d3-force/Collide force</title></text><a fill="inherit" href="./d3-force/link"><text y="0.32em" transform="translate(426.125,272.1151832460733)">Link force<title>/D3/Visualization/d3-force/Link force</title></text></a><text y="0.32em" transform="translate(426.125,272.1151832460733)">Link force<title>/D3/Visualization/d3-force/Link force</title></text><a fill="inherit" href="./d3-force/many-body"><text y="0.32em" transform="translate(426.125,284.0314136125654)">Many-body force<title>/D3/Visualization/d3-force/Many-body force</title></text></a><text y="0.32em" transform="translate(426.125,284.0314136125654)">Many-body force<title>/D3/Visualization/d3-force/Many-body force</title></text><a fill="inherit" href="./d3-force/position"><text y="0.32em" transform="translate(426.125,295.9476439790576)">Position forces<title>/D3/Visualization/d3-force/Position forces</title></text></a><text y="0.32em" transform="translate(426.125,295.9476439790576)">Position forces<title>/D3/Visualization/d3-force/Position forces</title></text><a fill="inherit" href="./d3-geo/path"><text y="0.32em" transform="translate(426.125,319.7801047120419)">Paths<title>/D3/Visualization/d3-geo/Paths</title></text></a><text y="0.32em" transform="translate(426.125,319.7801047120419)">Paths<title>/D3/Visualization/d3-geo/Paths</title></text><a fill="inherit" href="./d3-geo/stream"><text y="0.32em" transform="translate(426.125,343.61256544502623)">Streams<title>/D3/Visualization/d3-geo/Streams</title></text></a><text y="0.32em" transform="translate(426.125,343.61256544502623)">Streams<title>/D3/Visualization/d3-geo/Streams</title></text><a fill="inherit" href="./d3-geo/shape"><text y="0.32em" transform="translate(426.125,355.52879581151836)">Spherical shapes<title>/D3/Visualization/d3-geo/Spherical shapes</title></text></a><text y="0.32em" transform="translate(426.125,355.52879581151836)">Spherical shapes<title>/D3/Visualization/d3-geo/Spherical shapes</title></text><a fill="inherit" href="./d3-geo/math"><text y="0.32em" transform="translate(426.125,367.44502617801044)">Spherical math<title>/D3/Visualization/d3-geo/Spherical math</title></text></a><text y="0.32em" transform="translate(426.125,367.44502617801044)">Spherical math<title>/D3/Visualization/d3-geo/Spherical math</title></text><a fill="inherit" href="./d3-hierarchy/hierarchy"><text y="0.32em" transform="translate(426.125,391.27748691099475)">Hierarchies<title>/D3/Visualization/d3-hierarchy/Hierarchies</title></text></a><text y="0.32em" transform="translate(426.125,391.27748691099475)">Hierarchies<title>/D3/Visualization/d3-hierarchy/Hierarchies</title></text><a fill="inherit" href="./d3-hierarchy/stratify"><text y="0.32em" transform="translate(426.125,403.1937172774869)">Stratify<title>/D3/Visualization/d3-hierarchy/Stratify</title></text></a><text y="0.32em" transform="translate(426.125,403.1937172774869)">Stratify<title>/D3/Visualization/d3-hierarchy/Stratify</title></text><a fill="inherit" href="./d3-hierarchy/tree"><text y="0.32em" transform="translate(426.125,415.109947643979)">Tree<title>/D3/Visualization/d3-hierarchy/Tree</title></text></a><text y="0.32em" transform="translate(426.125,415.109947643979)">Tree<title>/D3/Visualization/d3-hierarchy/Tree</title></text><a fill="inherit" href="./d3-hierarchy/cluster"><text y="0.32em" transform="translate(426.125,427.0261780104712)">Cluster<title>/D3/Visualization/d3-hierarchy/Cluster</title></text></a><text y="0.32em" transform="translate(426.125,427.0261780104712)">Cluster<title>/D3/Visualization/d3-hierarchy/Cluster</title></text><a fill="inherit" href="./d3-hierarchy/partition"><text y="0.32em" transform="translate(426.125,438.9424083769634)">Partition<title>/D3/Visualization/d3-hierarchy/Partition</title></text></a><text y="0.32em" transform="translate(426.125,438.9424083769634)">Partition<title>/D3/Visualization/d3-hierarchy/Partition</title></text><a fill="inherit" href="./d3-hierarchy/pack"><text y="0.32em" transform="translate(426.125,450.8586387434555)">Pack<title>/D3/Visualization/d3-hierarchy/Pack</title></text></a><text y="0.32em" transform="translate(426.125,450.8586387434555)">Pack<title>/D3/Visualization/d3-hierarchy/Pack</title></text><a fill="inherit" href="./d3-hierarchy/treemap"><text y="0.32em" transform="translate(426.125,462.7748691099477)">Treemap<title>/D3/Visualization/d3-hierarchy/Treemap</title></text></a><text y="0.32em" transform="translate(426.125,462.7748691099477)">Treemap<title>/D3/Visualization/d3-hierarchy/Treemap</title></text><a fill="inherit" href="./d3-scale/linear"><text y="0.32em" transform="translate(426.125,486.60732984293185)">Linear scales<title>/D3/Visualization/d3-scale/Linear scales</title></text></a><text y="0.32em" transform="translate(426.125,486.60732984293185)">Linear scales<title>/D3/Visualization/d3-scale/Linear scales</title></text><a fill="inherit" href="./d3-scale/time"><text y="0.32em" transform="translate(426.125,498.52356020942403)">Time scales<title>/D3/Visualization/d3-scale/Time scales</title></text></a><text y="0.32em" transform="translate(426.125,498.52356020942403)">Time scales<title>/D3/Visualization/d3-scale/Time scales</title></text><a fill="inherit" href="./d3-scale/pow"><text y="0.32em" transform="translate(426.125,510.4397905759162)">Pow scales<title>/D3/Visualization/d3-scale/Pow scales</title></text></a><text y="0.32em" transform="translate(426.125,510.4397905759162)">Pow scales<title>/D3/Visualization/d3-scale/Pow scales</title></text><a fill="inherit" href="./d3-scale/log"><text y="0.32em" transform="translate(426.125,522.3560209424083)">Log scales<title>/D3/Visualization/d3-scale/Log scales</title></text></a><text y="0.32em" transform="translate(426.125,522.3560209424083)">Log scales<title>/D3/Visualization/d3-scale/Log scales</title></text><a fill="inherit" href="./d3-scale/symlog"><text y="0.32em" transform="translate(426.125,534.2722513089004)">Symlog scales<title>/D3/Visualization/d3-scale/Symlog scales</title></text></a><text y="0.32em" transform="translate(426.125,534.2722513089004)">Symlog scales<title>/D3/Visualization/d3-scale/Symlog scales</title></text><a fill="inherit" href="./d3-scale/ordinal"><text y="0.32em" transform="translate(426.125,546.1884816753927)">Ordinal scales<title>/D3/Visualization/d3-scale/Ordinal scales</title></text></a><text y="0.32em" transform="translate(426.125,546.1884816753927)">Ordinal scales<title>/D3/Visualization/d3-scale/Ordinal scales</title></text><a fill="inherit" href="./d3-scale/band"><text y="0.32em" transform="translate(426.125,558.1047120418848)">Band scales<title>/D3/Visualization/d3-scale/Band scales</title></text></a><text y="0.32em" transform="translate(426.125,558.1047120418848)">Band scales<title>/D3/Visualization/d3-scale/Band scales</title></text><a fill="inherit" href="./d3-scale/point"><text y="0.32em" transform="translate(426.125,570.020942408377)">Point scales<title>/D3/Visualization/d3-scale/Point scales</title></text></a><text y="0.32em" transform="translate(426.125,570.020942408377)">Point scales<title>/D3/Visualization/d3-scale/Point scales</title></text><a fill="inherit" href="./d3-scale/sequential"><text y="0.32em" transform="translate(426.125,581.9371727748692)">Sequential scales<title>/D3/Visualization/d3-scale/Sequential scales</title></text></a><text y="0.32em" transform="translate(426.125,581.9371727748692)">Sequential scales<title>/D3/Visualization/d3-scale/Sequential scales</title></text><a fill="inherit" href="./d3-scale/diverging"><text y="0.32em" transform="translate(426.125,593.8534031413611)">Diverging scales<title>/D3/Visualization/d3-scale/Diverging scales</title></text></a><text y="0.32em" transform="translate(426.125,593.8534031413611)">Diverging scales<title>/D3/Visualization/d3-scale/Diverging scales</title></text><a fill="inherit" href="./d3-scale/quantile"><text y="0.32em" transform="translate(426.125,605.7696335078534)">Quantile scales<title>/D3/Visualization/d3-scale/Quantile scales</title></text></a><text y="0.32em" transform="translate(426.125,605.7696335078534)">Quantile scales<title>/D3/Visualization/d3-scale/Quantile scales</title></text><a fill="inherit" href="./d3-scale/quantize"><text y="0.32em" transform="translate(426.125,617.6858638743455)">Quantize scales<title>/D3/Visualization/d3-scale/Quantize scales</title></text></a><text y="0.32em" transform="translate(426.125,617.6858638743455)">Quantize scales<title>/D3/Visualization/d3-scale/Quantize scales</title></text><a fill="inherit" href="./d3-scale/threshold"><text y="0.32em" transform="translate(426.125,629.6020942408378)">Threshold scales<title>/D3/Visualization/d3-scale/Threshold scales</title></text></a><text y="0.32em" transform="translate(426.125,629.6020942408378)">Threshold scales<title>/D3/Visualization/d3-scale/Threshold scales</title></text><a fill="inherit" href="./d3-scale-chromatic/categorical"><text y="0.32em" transform="translate(426.125,653.4345549738221)">Categorical schemes<title>/D3/Visualization/d3-scale-chromatic/Categorical schemes</title></text></a><text y="0.32em" transform="translate(426.125,653.4345549738221)">Categorical schemes<title>/D3/Visualization/d3-scale-chromatic/Categorical schemes</title></text><a fill="inherit" href="./d3-scale-chromatic/cyclical"><text y="0.32em" transform="translate(426.125,665.3507853403141)">Cyclical schemes<title>/D3/Visualization/d3-scale-chromatic/Cyclical schemes</title></text></a><text y="0.32em" transform="translate(426.125,665.3507853403141)">Cyclical schemes<title>/D3/Visualization/d3-scale-chromatic/Cyclical schemes</title></text><a fill="inherit" href="./d3-scale-chromatic/diverging"><text y="0.32em" transform="translate(426.125,677.2670157068062)">Diverging schemes<title>/D3/Visualization/d3-scale-chromatic/Diverging schemes</title></text></a><text y="0.32em" transform="translate(426.125,677.2670157068062)">Diverging schemes<title>/D3/Visualization/d3-scale-chromatic/Diverging schemes</title></text><a fill="inherit" href="./d3-scale-chromatic/sequential"><text y="0.32em" transform="translate(426.125,689.1832460732985)">Sequential schemes<title>/D3/Visualization/d3-scale-chromatic/Sequential schemes</title></text></a><text y="0.32em" transform="translate(426.125,689.1832460732985)">Sequential schemes<title>/D3/Visualization/d3-scale-chromatic/Sequential schemes</title></text><a fill="inherit" href="./d3-selection/selecting"><text y="0.32em" transform="translate(426.125,713.0157068062828)">Selecting elements<title>/D3/Visualization/d3-selection/Selecting elements</title></text></a><text y="0.32em" transform="translate(426.125,713.0157068062828)">Selecting elements<title>/D3/Visualization/d3-selection/Selecting elements</title></text><a fill="inherit" href="./d3-selection/modifying"><text y="0.32em" transform="translate(426.125,724.9319371727748)">Modifying elements<title>/D3/Visualization/d3-selection/Modifying elements</title></text></a><text y="0.32em" transform="translate(426.125,724.9319371727748)">Modifying elements<title>/D3/Visualization/d3-selection/Modifying elements</title></text><a fill="inherit" href="./d3-selection/joining"><text y="0.32em" transform="translate(426.125,736.8481675392671)">Joining data<title>/D3/Visualization/d3-selection/Joining data</title></text></a><text y="0.32em" transform="translate(426.125,736.8481675392671)">Joining data<title>/D3/Visualization/d3-selection/Joining data</title></text><a fill="inherit" href="./d3-selection/events"><text
33y="0.32em" transform="translate(426.125,748.7643979057591)">Handling events<title>/D3/Visualization/d3-selection/Handling events</title></text></a><text y="0.32em" transform="translate(426.125,748.7643979057591)">Handling events<title>/D3/Visualization/d3-selection/Handling events</title></text><a fill="inherit" href="./d3-selection/control-flow"><text y="0.32em" transform="translate(426.125,760.6806282722513)">Control flow<title>/D3/Visualization/d3-selection/Control flow</title></text></a><text y="0.32em" transform="translate(426.125,760.6806282722513)">Control flow<title>/D3/Visualization/d3-selection/Control flow</title></text><a fill="inherit" href="./d3-selection/locals"><text y="0.32em" transform="translate(426.125,772.5968586387435)">Local variables<title>/D3/Visualization/d3-selection/Local variables</title></text></a><text y="0.32em" transform="translate(426.125,772.5968586387435)">Local variables<title>/D3/Visualization/d3-selection/Local variables</title></text><a fill="inherit" href="./d3-selection/namespaces"><text y="0.32em" transform="translate(426.125,784.5130890052355)">Namespaces<title>/D3/Visualization/d3-selection/Namespaces</title></text></a><text y="0.32em" transform="translate(426.125,784.5130890052355)">Namespaces<title>/D3/Visualization/d3-selection/Namespaces</title></text><a fill="inherit" href="./d3-shape/arc"><text y="0.32em" transform="translate(426.125,808.3455497382199)">Arcs<title>/D3/Visualization/d3-shape/Arcs</title></text></a><text y="0.32em" transform="translate(426.125,808.3455497382199)">Arcs<title>/D3/Visualization/d3-shape/Arcs</title></text><a fill="inherit" href="./d3-shape/area"><text y="0.32em" transform="translate(426.125,820.2617801047121)">Areas<title>/D3/Visualization/d3-shape/Areas</title></text></a><text y="0.32em" transform="translate(426.125,820.2617801047121)">Areas<title>/D3/Visualization/d3-shape/Areas</title></text><a fill="inherit" href="./d3-shape/curve"><text y="0.32em" transform="translate(426.125,832.1780104712042)">Curves<title>/D3/Visualization/d3-shape/Curves</title></text></a><text y="0.32em" transform="translate(426.125,832.1780104712042)">Curves<title>/D3/Visualization/d3-shape/Curves</title></text><a fill="inherit" href="./d3-shape/line"><text y="0.32em" transform="translate(426.125,844.0942408376964)">Lines<title>/D3/Visualization/d3-shape/Lines</title></text></a><text y="0.32em" transform="translate(426.125,844.0942408376964)">Lines<title>/D3/Visualization/d3-shape/Lines</title></text><a fill="inherit" href="./d3-shape/link"><text y="0.32em" transform="translate(426.125,856.0104712041884)">Links<title>/D3/Visualization/d3-shape/Links</title></text></a><text y="0.32em" transform="translate(426.125,856.0104712041884)">Links<title>/D3/Visualization/d3-shape/Links</title></text><a fill="inherit" href="./d3-shape/pie"><text y="0.32em" transform="translate(426.125,867.9267015706806)">Pies<title>/D3/Visualization/d3-shape/Pies</title></text></a><text y="0.32em" transform="translate(426.125,867.9267015706806)">Pies<title>/D3/Visualization/d3-shape/Pies</title></text><a fill="inherit" href="./d3-shape/stack"><text y="0.32em" transform="translate(426.125,879.8429319371728)">Stacks<title>/D3/Visualization/d3-shape/Stacks</title></text></a><text y="0.32em" transform="translate(426.125,879.8429319371728)">Stacks<title>/D3/Visualization/d3-shape/Stacks</title></text><a fill="inherit" href="./d3-shape/symbol"><text y="0.32em" transform="translate(426.125,891.7591623036649)">Symbols<title>/D3/Visualization/d3-shape/Symbols</title></text></a><text y="0.32em" transform="translate(426.125,891.7591623036649)">Symbols<title>/D3/Visualization/d3-shape/Symbols</title></text><a fill="inherit" href="./d3-shape/radial-area"><text y="0.32em" transform="translate(426.125,903.6753926701572)">Radial areas<title>/D3/Visualization/d3-shape/Radial areas</title></text></a><text y="0.32em" transform="translate(426.125,903.6753926701572)">Radial areas<title>/D3/Visualization/d3-shape/Radial areas</title></text><a fill="inherit" href="./d3-shape/radial-line"><text y="0.32em" transform="translate(426.125,915.5916230366493)">Radial lines<title>/D3/Visualization/d3-shape/Radial lines</title></text></a><text y="0.32em" transform="translate(426.125,915.5916230366493)">Radial lines<title>/D3/Visualization/d3-shape/Radial lines</title></text><a fill="inherit" href="./d3-shape/radial-link"><text y="0.32em" transform="translate(426.125,927.5078534031413)">Radial links<title>/D3/Visualization/d3-shape/Radial links</title></text></a><text y="0.32em" transform="translate(426.125,927.5078534031413)">Radial links<title>/D3/Visualization/d3-shape/Radial links</title></text><a fill="inherit" href="./d3-transition/selecting"><text y="0.32em" transform="translate(426.125,951.3403141361257)">Selecting elements<title>/D3/Animation/d3-transition/Selecting elements</title></text></a><text y="0.32em" transform="translate(426.125,951.3403141361257)">Selecting elements<title>/D3/Animation/d3-transition/Selecting elements</title></text><a fill="inherit" href="./d3-transition/modifying"><text y="0.32em" transform="translate(426.125,963.2565445026178)">Modifying elements<title>/D3/Animation/d3-transition/Modifying elements</title></text></a><text y="0.32em" transform="translate(426.125,963.2565445026178)">Modifying elements<title>/D3/Animation/d3-transition/Modifying elements</title></text><a fill="inherit" href="./d3-transition/timing"><text y="0.32em" transform="translate(426.125,975.17277486911)">Timing<title>/D3/Animation/d3-transition/Timing</title></text></a><text y="0.32em" transform="translate(426.125,975.17277486911)">Timing<title>/D3/Animation/d3-transition/Timing</title></text><a fill="inherit" href="./d3-transition/control-flow">
33<text y="0.32em" transform="translate(426.125,987.089005235602)">Control flow<title>/D3/Animation/d3-transition/Control flow</title></text></a><text y="0.32em" transform="translate(426.125,987.089005235602)">Control flow<title>/D3/Animation/d3-transition/Control flow</title></text><a fill="inherit" href="./d3-array/add"><text y="0.32em" transform="translate(426.125,1010.9214659685863)">Adding numbers<title>/D3/Data/d3-array/Adding numbers</title></text></a><text y="0.32em" transform="translate(426.125,1010.9214659685863)">Adding numbers<title>/D3/Data/d3-array/Adding numbers</title></text><a fill="inherit" href="./d3-array/bin"><text y="0.32em" transform="translate(426.125,1022.8376963350786)">Binning data<title>/D3/Data/d3-array/Binning data</title></text></a><text y="0.32em" transform="translate(426.125,1022.8376963350786)">Binning data<title>/D3/Data/d3-array/Binning data</title></text><a fill="inherit" href="./d3-array/bisect"><text y="0.32em" transform="translate(426.125,1034.753926701571)">Bisecting data<title>/D3/Data/d3-array/Bisecting data</title></text></a><text y="0.32em" transform="translate(426.125,1034.753926701571)">Bisecting data<title>/D3/Data/d3-array/Bisecting data</title></text><a fill="inherit" href="./d3-array/blur"><text y="0.32em" transform="translate(426.125,1046.670157068063)">Blurring data<title>/D3/Data/d3-array/Blurring data</title></text></a><text y="0.32em" transform="translate(426.125,1046.670157068063)">Blurring data<title>/D3/Data/d3-array/Blurring data</title></text><a fill="inherit" href="./d3-array/group"><text y="0.32em" transform="translate(426.125,1058.586387434555)">Grouping data<title>/D3/Data/d3-array/Grouping data</title></text></a><text y="0.32em" transform="translate(426.125,1058.586387434555)">Grouping data<title>/D3/Data/d3-array/Grouping data</title></text><a fill="inherit" href="./d3-array/intern"><text y="0.32em" transform="translate(426.125,1070.502617801047)">Interning values<title>/D3/Data/d3-array/Interning values</title></text></a><text y="0.32em" transform="translate(426.125,1070.502617801047)">Interning values<title>/D3/Data/d3-array/Interning values</title></text><a fill="inherit" href="./d3-array/sets"><text y="0.32em" transform="translate(426.125,1082.4188481675392)">Set operations<title>/D3/Data/d3-array/Set operations</title></text></a><text y="0.32em" transform="translate(426.125,1082.4188481675392)">Set operations<title>/D3/Data/d3-array/Set operations</title></text><a fill="inherit" href="./d3-array/sort"><text y="0.32em" transform="translate(426.125,1094.3350785340313)">Sorting data<title>/D3/Data/d3-array/Sorting data</title></text></a><text y="0.32em" transform="translate(426.125,1094.3350785340313)">Sorting data<title>/D3/Data/d3-array/Sorting data</title></text><a fill="inherit" href="./d3-array/summarize"><text y="0.32em" transform="translate(426.125,1106.2513089005236)">Summarizing data<title>/D3/Data/d3-array/Summarizing 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transform="translate(568,319.7801047120419)">Azimuthal projections<title>/D3/Visualization/d3-geo/Projections/Azimuthal projections</title></text><a fill="inherit" href="./d3-geo/conic"><text y="0.32em" transform="translate(568,331.69633507853405)">Conic projections<title>/D3/Visualization/d3-geo/Projections/Conic projections</title></text></a><text y="0.32em" transform="translate(568,331.69633507853405)">Conic projections<title>/D3/Visualization/d3-geo/Projections/Conic projections</title></text><a fill="inherit" href="./d3-geo/cylindrical"><text y="0.32em" transform="translate(568,343.61256544502623)">Cylindrical projections<title>/D3/Visualization/d3-geo/Projections/Cylindrical projections</title></text></a><text y="0.32em" transform="translate(568,343.61256544502623)">Cylindrical projections<title>/D3/Visualization/d3-geo/Projections/Cylindrical projections</title></text></g><g aria-label="text" stroke="var(--vp-c-bg)" stroke-width="3" stroke-linejoin="round" paint-order="stroke" text-anchor="end" transform="translate(-6,0)"><text y="0.32em" transform="translate(0.5,564.0628272251308)">D3<title>/D3</title></text><text y="0.32em" transform="translate(142.375,21.874345549738177)">Introduction<title>/D3/Introduction</title></text><text y="0.32em" transform="translate(142.375,465.75392670157066)">Visualization<title>/D3/Visualization</title></text><text y="0.32em" transform="translate(142.375,957.2984293193717)">Animation<title>/D3/Animation</title></text><text y="0.32em" transform="translate(142.375,1019.8586387434555)">Interaction<title>/D3/Interaction</title></text><text y="0.32em" transform="translate(142.375,1106.2513089005236)">Data<title>/D3/Data</title></text><a fill="inherit" href="./d3-chord"><text y="0.32em" transform="translate(284.25,75.49738219895283)">d3-chord<title>/D3/Visualization/d3-chord</title></text></a><text y="0.32em" transform="translate(284.25,75.49738219895283)">d3-chord<title>/D3/Visualization/d3-chord</title></text><a fill="inherit" href="./d3-interpolate"><text y="0.32em" transform="translate(284.25,123.16230366492147)">d3-interpolate<title>/D3/Visualization/d3-interpolate</title></text></a><text y="0.32em" transform="translate(284.25,123.16230366492147)">d3-interpolate<title>/D3/Visualization/d3-interpolate</title></text><a fill="inherit" href="./d3-contour"><text y="0.32em" transform="translate(284.25,170.8272251308901)">d3-contour<title>/D3/Visualization/d3-contour</title></text></a><text y="0.32em" transform="translate(284.25,170.8272251308901)">d3-contour<title>/D3/Visualization/d3-contour</title></text><a fill="inherit" href="./d3-delaunay"><text y="0.32em" transform="translate(284.25,206.57591623036646)">d3-delaunay<title>/D3/Visualization/d3-delaunay</title></text></a><text y="0.32em" transform="translate(284.25,206.57591623036646)">d3-delaunay<title>/D3/Visualization/d3-delaunay</title></text><a fill="inherit" href="./d3-force"><text y="0.32em" transform="translate(284.25,266.15706806282725)">d3-force<title>/D3/Visualization/d3-force</title></text></a><text y="0.32em" transform="translate(284.25,266.15706806282725)">d3-force<title>/D3/Visualization/d3-force</title></text><a fill="inherit" href="./d3-geo"><text y="0.32em" transform="translate(284.25,343.61256544502623)">d3-geo<title>/D3/Visualization/d3-geo</title></text></a><text y="0.32em" transform="translate(284.25,343.61256544502623)">d3-geo<title>/D3/Visualization/d3-geo</title></text><a fill="inherit" href="./d3-hierarchy"><text y="0.32em" transform="translate(284.25,427.0261780104712)">d3-hierarchy<title>/D3/Visualization/d3-hierarchy</title></text></a><text y="0.32em" transform="translate(284.25,427.0261780104712)">d3-hierarchy<title>/D3/Visualization/d3-hierarchy</title></text><a fill="inherit" href="./d3-scale"><text y="0.32em" transform="translate(284.25,558.1047120418848)">d3-scale<title>/D3/Visualization/d3-scale</title></text></a><text y="0.32em" transform="translate(284.25,558.1047120418848)">d3-scale<title>/D3/Visualization/d3-scale</title></text><a fill="inherit" href="./d3-scale-chromatic"><text y="0.32em" transform="translate(284.25,671.3089005235602)">d3-scale-chromatic<title>/D3/Visualization/d3-scale-chromatic</title></text></a><text y="0.32em" transform="translate(284.25,671.3089005235602)">d3-scale-chromatic<title>/D3/Visualization/d3-scale-chromatic</title></text><a fill="inherit" href="./d3-selection"><text y="0.32em" transform="translate(284.25,748.7643979057591)">d3-selection<title>/D3/Visualization/d3-selection</title></text></a><text y="0.32em" transform="translate(284.25,748.7643979057591)">d3-selection<title>/D3/Visualization/d3-selection</title></text><a fill="inherit" href="./d3-shape"><text y="0.32em" transform="translate(284.25,867.9267015706806)">d3-shape<title>/D3/Visualization/d3-shape</title></text></a><text y="0.32em" transform="translate(284.25,867.9267015706806)">d3-shape<title>/D3/Visualization/d3-shape</title></text><a fill="inherit" href="./d3-transition"><text y="0.32em" transform="translate(284.25,969.2146596858638)">d3-transition<title>/D3/Animation/d3-transition</title></text></a><text y="0.32em" transform="translate(284.25,969.2146596858638)">d3-transition<title>/D3/Animation/d3-transition</title></text><a fill="inherit" href="./d3-array"><text y="0.32em" transform="translate(284.25,1070.502617801047)">d3-array<title>/D3/Data/d3-array</title></text></a><text y="0.32em" transform="translate(284.25,1070.502617801047)">d3-array<title>/D3/Data/d3-array</title></text><a fill="inherit" href="./d3-geo/projection"><text y="0.32em" transform="translate(426.125,331.69633507853405)">Projections<title>/D3/Visualization/d3-geo/Projections</title></text></a><text y="0.32em" transform="translate(426.125,331.69633507853405)">Projections<title>/D3/Visualization/d3-geo/Projections</title></text></g></svg></span><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>Unless you need D3âs low-level control, we recommend our high-level sister library: <a href="https://observablehq.com/plot" target="_blank" rel="external">Observable Plot</a>. Whereas a histogram in D3 might require 50 lines of code, Plot c
33an do it in one! Plotâs concise yet expressive API lets you focus more on analyzing and visualizing data instead of web development. You can even combine Plot and D3 for the best of both.</p></div><h2 id="d3-is-flexible" tabindex="-1">D3 is flexible <a class="header-anchor" href="#d3-is-flexible" aria-label="Permalink to "D3 is flexible"">â</a></h2><p>Because D3 has no overarching âchartâ abstraction, even a basic chart may require a few dozen lines of code. On the upside, all the pieces are laid out in front of you and you have complete control over what happens. You can tailor the visualization to achieve exactly what you want. D3 has no default presentation of your data â thereâs just the code you write yourself. (Or copy from an example.)</p><p>Consider D3 an alternative to âdoing everything yourselfâ, not an alternative to a high-level charting library. If you arenât satisfied with other tools and youâre thinking of rolling your own charts using SVG or Canvas (or even WebGL), you might as well peruse D3âs toolbox! Thereâs almost certainly something here that will help you build the chart of your dreams without imposing on your creativity.</p><h2 id="d3-works-with-the-web" tabindex="-1">D3 works with the web <a class="header-anchor" href="#d3-works-with-the-web" aria-label="Permalink to "D3 works with the web"">â</a></h2><p>D3 doesnât introduce a new graphical representation; instead, you use D3 directly with web standards such as SVG and Canvas.</p><p>The name âD3â is short for <em>data-driven documents</em>, where <em>documents</em> refers to the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model" target="_blank" rel="external">Document Object Model (DOM)</a> standard that represents the contents of a webpage. While some of D3âs modules (such as <a href="./d3-selection">selections</a> and <a href="./d3-selection">transitions</a>) touch the DOM, others (including <a href="./d3-scale">scales</a> and <a href="./d3-shape">shapes</a>) only operate on data. D3 can also be paired with web frameworks such as React, Vue, and Svelte; see the <a href="./getting-started">getting started guide</a> for recommendations.</p><p>D3âs embrace of web standards brings many benefits. For example, you can use external stylesheets to alter the appearance of charts (even in response to media queries, say for responsive charts or dark mode); you can use the debugger and element inspector to review what your code is doing; and D3âs synchronous, imperative evaluation model â calling <a href="./d3-selection/modifying#selection_attr"><em>selection</em>.attr</a> immediately mutates the DOM â can make it easier to debug than frameworks with complex asynchronous runtimes.</p><h2 id="d3-is-for-bespoke-visualization" tabindex="-1">D3 is for bespoke visualization <a class="header-anchor" href="#d3-is-for-bespoke-visualization" aria-label="Permalink to "D3 is for bespoke visualization"">â</a></h2><p>D3 makes things possible, not necessarily easy; even simple things that should be easy are often not. To paraphrase Amanda Cox: âUse D3 if you think itâs perfectly normal to write a hundred lines of code for a bar chart.â</p><p>If you need maximal expressiveness for your bespoke visualization, you should consider D3. D3 makes sense for media organizations such as <em>The New York Times</em> or <em>The Pudding</em>, where a single graphic may be seen by a million readers, and where a team of editors can work together to advance the state of the art in visual communication.</p><p>On the other hand, D3 is overkill for throwing together a private dashboard or a one-off analysis. Donât get seduced by whizbang examples: many of them took an immense effort to implement! If youâre constrained by time (and who isnât?), youâd likely produce a better visualization or analysis with <a href="https://observablehq.com/plot" target="_blank" rel="external">Observable Plot</a>.</p><h2 id="d3-is-for-dynamic-visualization" tabindex="-1">D3 is for dynamic visualization <a class="header-anchor" href="#d3-is-for-dynamic-visualization" aria-label="Permalink to "D3 is for dynamic visualization"">â</a></h2><p>D3âs most novel concept is its <a href="./d3-selection/joining">data join</a>: given a set of data and a set of DOM elements, the data join allows you to apply separate operations for <em>entering</em>, <em>updating</em>, and <em>exiting</em> elements. If youâre only creating static charts (charts that donât animate or respond to user input), you may find this concept unintuitive or even bizarre because itâs not needed.</p><p>The data join exists so that you can control <em>exactly</em> what happens when your data changes and update the display in response. This direct control allows extremely performant updates â you only touch the elements and attributes that need changing, without diffing the DOM â and smooth animated transitions between states. D3 shines for dynamic, interactive visualizations. (Try option-clicking the state toggles in <a href="https://archive.nytimes.c
33om/www.nytimes.com/interactive/2012/11/02/us/politics/paths-to-the-white-house.html" target="_blank" rel="external">â512 Paths to the White Houseâ</a> from 2012. Really.)</p></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><!----><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><!----></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/getting-started" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>Next page</span><span class="title" data-v-e257564d>Getting started</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="bg-alt f12 lh-normal" data-v-5d98c3a5><div class="flex-l"><div class="ma4"><a title="Home" target="_blank" href="https://observablehq.com/"><svg role="img" width="173" height="24" viewBox="0 0 173 24" aria-label="Observable" fill="currentColor"><path d="M40.8496 20.6083C39.7407 20.6083 38.6757 20.4234 37.6548 20.0538C36.6339 19.6842 35.7186 19.1209 34.9089 18.364C34.1168 17.607 33.4919 16.6565 33.0343 15.5124C32.5766 14.3683 32.3478 13.0218 32.3478 11.4727C32.3478 9.92375 32.5766 8.57718 33.0343 7.43305C33.5095 6.2889 34.1432 5.33839 34.9353 4.5815C35.7274 3.82462 36.6339 3.26135 37.6548 2.8917C38.6757 2.52205 39.7407 2.33723 40.8496 2.33723C41.9585 2.33723 43.0234 2.52205 44.0444 2.8917C45.0653 3.26135 45.9718 3.82462 46.7639 4.5815C47.556 5.33839 48.1809 6.2889 48.6386 7.43305C49.1138 8.57718 49.3514 9.92375 49.3514 11.4727C49.3514 13.0218 49.1225 14.3683 48.665 15.5124C48.2073 16.6565 47.5736 17.607 46.7639 18.364C45.9718 19.1209 45.0653 19.6842 44.0444 20.0538C43.0234 20.4234 41.9585 20.6083 40.8496 20.6083ZM40.8496 18.9977C41.6065 18.9977 42.2049 18.6896 42.645 18.0736C43.1027 17.4398 43.4283 16.5598 43.622 15.4332C43.8332 14.3067 43.9388 12.9865 43.9388 11.4727C43.9388 9.95894 43.8332 8.63879 43.622 7.51226C43.4283 6.38572 43.1027 5.50562 42.645 4.87193C42.2049 4.23826 41.6065 3.92142 40.8496 3.92142C40.1103 3.92142 39.5118 4.23826 39.0542 4.87193C38.5965 5.50562 38.2621 6.38572 38.0509 7.51226C37.8572 8.63879 37.7604 9.95894 37.7604 11.4727C37.7604 12.9865 37.8572 14.3067 38.0509 15.4332C38.2621 16.5598 38.5965 17.4398 39.0542 18.0736C39.5118 18.6896 40.1103 18.9977 40.8496 18.9977ZM50.5773 20.1066V18.76L51.7655 18.496C51.7831 17.8622 51.7919 17.1846 51.7919 16.4629C51.7919 15.7413 51.7919 15.1076 51.7919 14.5619V3.60459L50.3661 3.41977V2.23162L56.386 1.04348L56.8349 1.33392L56.7293 5.00396V8.33075C57.7678 7.30983 59.0175 6.79937 60.4785 6.79937C61.4466 6.79937 62.3267 7.0546 63.1188 7.56506C63.9109 8.05792 64.5358 8.80601 64.9934 9.80933C65.4687 10.7951 65.7063 12.0448 65.7063 13.5586C65.7063 15.002 65.4335 16.2429 64.8878 17.2814C64.3422 18.3199 63.6293 19.1209 62.7491 19.6842C61.8867 20.2298 60.9626 20.5026 59.9768 20.5026C59.22 20.5026 58.5599 20.3706 57.9966 20.1066C57.4333 19.8601 56.9405 19.4993 56.518 19.0241L55.99 20.5026L50.5773 20.1066ZM58.0494 9.41329C57.8206 9.41329 57.6006 9.44848 57.3893 9.5189C57.1957 9.5893 57.0021 9.68612 56.8085 9.80933V17.5982C57.1605 17.8447 57.5742 17.968 58.0494 17.968C58.7535 17.968 59.3168 17.607 59.7392 16.8853C60.1616 16.1637 60.3729 15.0548 60.3729 13.5586C60.3729 12.0448 60.1616 10.9799 59.7392 10.3638C59.3168 9.73012 58.7535 9.41329 58.0494 9.41329ZM71.7275 20.5026C69.8968 20.5026 68.2775 20.0714 66.8693 19.2089L67.0013 15.8292H69.404L69.8264 18.5752C70.1257 18.6984 70.4337 18.7952 70.7505 18.8657C71.0674 18.9185 71.3931 18.9449 71.7275 18.9449C72.3964 18.9449 72.9156 18.8393 73.2852 18.628C73.6549 18.4168 73.8397 18.0647 73.8397 17.5718C73.8397 17.2198 73.699 16.903 73.4173 16.6213C73.1532 16.3397 72.5812 16.0845 71.7011 15.8556L70.1961 15.4596C69.1575 15.178 68.3654 14.6851 67.8198 13.981C67.2742 13.2594 67.0013 12.3881 67.0013 11.3671C67.0013 10.047 67.503 8.95563 68.5063 8.09312C69.5272 7.23062 70.9882 6.79937 72.8892 6.79937C73.699 6.79937 74.447 6.88738 75.1335 7.06341C75.8376 7.23942 76.5505 7.50345 77.2721 7.8555L77.0609 10.839H74.6318L74.0509 8.48917C73.8749 8.45397 73.6813 8.42757 73.4701 8.40996C73.2765 8.37476 73.0389 8.35715 72.7572 8.35715C72.2644 8.35715 71.8419 8.47157 71.4898 8.70039C71.1554 8.91162 70.9882 9.24606 70.9882 9.70372C70.9882 9.98535 71.1115 10.2582 71.3578 10.5222C71.6043 10.7862 72.1851 11.0414 73.1004 11.2879L74.579 11.6839C75.8112 12.0184 76.6912 12.5377 77.2193 13.2417C77.76
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