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Started</span></a> <!----></li><li class="nav-item"><div class="nav-link"><span class="title">Basics</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/basics/download" class="nav-link"><span class="title">Download ECharts</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/basics/import" class="nav-link"><span class="title">Import ECharts</span></a> <!----></li><!----><li class="nav-item"><a href="/handbook/en/basics/inspiration" class="nav-link"><span class="title">Inspiration</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/basics/help" class="nav-link"><span class="title">Get Help</span></a> <!----></li><li class="nav-item"><a class="nav-link"><span class="title">Release Note</span> <span class="glyphicon glyphicon-menu-down"></span></a> <!----></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Concepts</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/concepts/chart-size" class="nav-link"><span class="title">Chart Container</span></a> <!----></li><!----><!----><li class="nav-item"><a href="/handbook/en/concepts/style" class="nav-link"><span class="title">Style</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/concepts/dataset" class="nav-link"><span class="title">Dataset</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/concepts/data-transform" class="nav-link"><span class="title">Data Transform</span></a> <!----></li><!----><li class="nav-item"><a href="/handbook/en/concepts/axis" class="nav-link"><span class="title">Axis</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/concepts/visual-map" class="nav-link"><span class="title">Visual Mapping</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/concepts/legend" aria-current="page" class="nav-link nuxt-link-exact-active nuxt-link-active"><span class="title">Legend</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/concepts/event" class="nav-link"><span class="title">Event and Action</span></a> <!----></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Application</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a class="nav-link"><span class="title">Common Charts</span> <span class="glyphicon glyphicon-menu-down"></span></a> <!----></li><!----><li class="nav-item"><a class="nav-link"><span class="title">Cross Platform</span> <span class="glyphicon glyphicon-menu-down"></span></a> <!----></li><li class="nav-item"><a class="nav-link"><span class="title">Data</span> <span class="glyphicon glyphicon-menu-down"></span></a> <!----></li><li class="nav-item"><a class="nav-link"><span class="title">Label</span> <span class="glyphicon glyphicon-menu-down"></span></a> <!----></li><li class="nav-item"><a class="nav-link"><span class="title">Interaction</span> <span class="glyphicon glyphicon-menu-down"></span></a> <!----></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Best Practice</span></div> <ul class="nav bd-sidenav level1"><!----><li class="nav-item"><a href="/handbook/en/best-practice/canvas-vs-svg" class="nav-link"><span class="title">Canvas vs. SVG</span></a> <!----></li><li class="nav-item"><a href="/handbook/en/best-practice/aria" class="nav-link"><span class="title">Aria</span></a> <!----></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Edit Handbook</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/meta/edit-guide" class="nav-link"><span class="title">Edit Guide</span></a> <!----></li></ul></li></ul></div></div> <div class="bd-content col-sm-7 pl-sm-2 col-12"><div class="post-content content"><div><div class="post-inner"><div class="nuxt-content"><h1 id="legend"><a aria-hidden="true" href="#legend" tabindex="-1"><span class="icon icon-link"></span></a>Legend</h1>
<p>Legends are used to annotate the content in the chart using different colors, shapes and texts to indicate different categories. By clicking the legends, the user can show or hide the corresponding categories. Legend is one of the key to understand the chart.</p>
<h2 id="layout"><a aria-hidden="true" href="#layout" tabindex="-1"><span class="icon icon-link"></span></a>Layout</h2>
<p>Legend is always placed at the upper right corner of the chart. All legends in the same page need to be consistent, align horizontally or vertically by considering the layout of the overall chart space. When the chart have little vertical space or the content area is crowded, it is also a good choice to put legent on the bottom of the chart. Here are some layouts of the legend:</p>
<div class="nuxt-content-highlight"><!----></div>
<p>Use scrollable control if there are many legends.</p>
<div class="nuxt-content-highlight"><div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div></div>
<h2 id="style"><a aria-hidden="true" href="#style" tabindex="-1"><span class="icon icon-link"></span></a>Style</h2>
<p>For dark color background, use a light color for the background layer and text while changing the background to translucent.</p>
<div class="nuxt-content-highlight"><div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div></div>
<p>The color of legend has many ways to design. For different charts, the legend style can be different.</p>
<img max-width="830" width="80%" height="80%" src="images/design/legend/charts_sign_img04.png">
<div class="nuxt-content-highlight"><div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div></div>
<h2 id="interactive"><a aria-hidden="true" href="#interactive" tabindex="-1"><span class="icon icon-link"></span></a>Interactive</h2>
<p>Depend on the environmental demand, the legend can support interactive operation. Click the legend to show or hide corresponding categories:</p>
<div class="nuxt-content-highlight"><div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div></div>
<h2 id="tips"><a aria-hidden="true" href="#tips" tabindex="-1"><span class="icon icon-link"></span></a>Tips</h2>
<p>The legend should be used according to the situation. Some dual-axis charts include multiple chart types. Different kinds of legend stypes should be distinguished.</p>
<div class="nuxt-content-highlight"><div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div></div>
<p>While there is only one kind of data in the chart, use the chart title rather than the legend to explain it.</p></div> <div class="table-of-contents"><h4 class="toc-container-header">In This Page</h4> <ul><li class="toc2"><a href="/handbook/en/concepts/legend#layout">Layout</a></li><li class="toc2"><a href="/handbook/en/concepts/legend#style">Style</a></li><li class="toc2"><a href="/handbook/en/concepts/legend#interactive">Interactive</a></li><li class="toc2"><a href="/handbook/en/concepts/legend#tips">Tips</a></li></ul></div></div> <div class="post-contributors"><h3><span class="inline-block align-middle">本文贡献者</span> <a target="_blank" href="https://github.com/apache/echarts-handbook/tree/master/contents/en/concepts/legend.md" title="编辑本文" class="inline-block align-middle text-sm"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-8 w-8 inline-block align-middle"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg> <span class="inline-block align-middle">在 GitHub 上编辑本页</span></a></h3> <div class="post-contributors-list"><a href="https://github.com/Ovilia" target="_blank" class="post-contributor"><img alt="Ovilia" src="https://avatars.githubusercontent.com/Ovilia?size=60"> <span>Ovilia</span></a></div></div></div></div></div></div> <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/highlight.js@9.12.0/styles/github-gist.min.css"></div></div></div></div><script defer src="/handbook/_nuxt/static/1627882506/en/concepts/legend/state.js"></script><script src="/handbook/_nuxt/b6d3b58.js" defer></script><script src="/handbook/_nuxt/js/11b97ca97d591d9fd371.js" defer></script><script src="/handbook/_nuxt/js/5e2cbf163a319fa7cf5b.js" defer></script><script src="/handbook/_nuxt/js/f5e7518d240a121a2e4a.js" defer></script><script src="/handbook/_nuxt/js/4c789e610fc01b03106d.js" defer></script><script src="/handbook/_nuxt/js/25eb9ce4c1818917d228.js" defer></script>
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