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href="/handbook/zh/how-to/interaction/coarse-pointer" class="nav-link"><span class="title">智能指针吸附</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">最佳实践</span></div> <ul class="nav bd-sidenav level1"><!----><li class="nav-item"><a href="/handbook/zh/best-practices/canvas-vs-svg" class="nav-link"><span class="title">Canvas vs. SVG</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/zh/best-practices/aria" class="nav-link"><span class="title">无障碍访问</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">编辑本文档</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/zh/meta/edit-guide" class="nav-link"><span class="title">文档编辑指南</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li></ul></div> <div class="open-sidebar"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"></path></svg></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"><article><h1 id="%E5%9C%86%E7%8E%AF%E5%9B%BE" tabindex="-1">圆环图</h1> <p>圆环图同样可以用来表示数据占总体的比例，相比于饼图，它中间空余的部分可以用来显示一些额外的文字等信息，因而也是一种常用的图表类型。</p> <h2 id="%E5%9F%BA%E7%A1%80%E5%9C%86%E7%8E%AF%E5%9B%BE" tabindex="-1">基础圆环图</h2> <p>在 ECharts 中，饼图的半径除了上一小节提到的，可以是一个数值或者字符串之外，还可以是一个包含两个元素的数组，每个元素可以为数值或字符串。当它是一个数组时，它的前一项表示内半径，后一项表示外半径，这样就形成了一个圆环图。</p> <p>从这个角度上来说，可以认为饼图是一个内半径为 0 的圆环图，也就是说，饼图是圆环图的特例。</p> <div class="md-live layout-tb"><div class="md-live-editor"><div class="md-live-editor-container"><div class="prism-editor-wrapper"><div class="prism-editor__container"><textarea spellcheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">option = { |
| title: { |
| text: '圆环图的例子', |
| left: 'center', |
| top: 'center' |
| }, |
| series: [ |
| { |
| type: 'pie', |
| data: [ |
| { |
| value: 335, |
| name: 'A' |
| }, |
| { |
| value: 234, |
| name: 'B' |
| }, |
| { |
| value: 1548, |
| name: 'C' |
| } |
| ], |
| radius: ['40%', '70%'] |
| } |
| ] |
| };</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">title</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">text</span><span class="token operator">:</span> <span class="token string">'圆环图的例子'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">left</span><span class="token operator">:</span> <span class="token string">'center'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">top</span><span class="token operator">:</span> <span class="token string">'center'</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'pie'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">335</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'A'</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">234</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'B'</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">1548</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'C'</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">radius</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'40%'</span><span class="token punctuation">,</span> <span class="token string">'70%'</span><span class="token punctuation">]</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">;</span><br></pre></div></div></div> <div class="md-live-tag">live</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 class="md-live-preview"></div></div> <p>如果半径是数组，其中的两项也可以一项是数值，另一项是百分比形式的字符串。但是这样可能导致在某些分辨率下，内半径小于外半径。ECharts 会自动使用小的一项作为内半径，但是仍应小心这样可能会导致的非预期效果。</p> <h2 id="%E5%9C%A8%E5%9C%86%E7%8E%AF%E5%9B%BE%E4%B8%AD%E9%97%B4%E6%98%BE%E7%A4%BA%E9%AB%98%E4%BA%AE%E6%89%87%E5%BD%A2%E5%AF%B9%E5%BA%94%E7%9A%84%E6%96%87%E5%AD%97" tabindex="-1">在圆环图中间显示高亮扇形对应的文字</h2> <p>上面的例子展现了在圆环图中间显示固定文字的例子，下面我们要介绍，如何在圆环图中间显示鼠标高亮的扇形对应的文字。实现这一效果的思路是，利用系列的 <code>label</code>（默认用扇形颜色显示数据的 <code>name</code>），显示在圆环图中间。在默认情况下不显示系列的 <code>label</code>，在高亮时显示。具体的代码如下：</p> <div class="md-live layout-tb"><div class="md-live-editor"><div class="md-live-editor-container"><div class="prism-editor-wrapper"><div class="prism-editor__container"><textarea spellcheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">option = { |
| legend: { |
| orient: 'vertical', |
| x: 'left', |
| data: ['A', 'B', 'C', 'D', 'E'] |
| }, |
| series: [ |
| { |
| type: 'pie', |
| radius: ['50%', '70%'], |
| avoidLabelOverlap: false, |
| label: { |
| show: false, |
| position: 'center' |
| }, |
| labelLine: { |
| show: false |
| }, |
| emphasis: { |
| label: { |
| show: true, |
| fontSize: '30', |
| fontWeight: 'bold' |
| } |
| }, |
| data: [ |
| { value: 335, name: 'A' }, |
| { value: 310, name: 'B' }, |
| { value: 234, name: 'C' }, |
| { value: 135, name: 'D' }, |
| { value: 1548, name: 'E' } |
| ] |
| } |
| ] |
| };</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">legend</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">orient</span><span class="token operator">:</span> <span class="token string">'vertical'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">x</span><span class="token operator">:</span> <span class="token string">'left'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'A'</span><span class="token punctuation">,</span> <span class="token string">'B'</span><span class="token punctuation">,</span> <span class="token string">'C'</span><span class="token punctuation">,</span> <span class="token string">'D'</span><span class="token punctuation">,</span> <span class="token string">'E'</span><span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'pie'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">radius</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'50%'</span><span class="token punctuation">,</span> <span class="token string">'70%'</span><span class="token punctuation">]</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">avoidLabelOverlap</span><span class="token operator">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">position</span><span class="token operator">:</span> <span class="token string">'center'</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">labelLine</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">false</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">emphasis</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">fontSize</span><span class="token operator">:</span> <span class="token string">'30'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">fontWeight</span><span class="token operator">:</span> <span class="token string">'bold'</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">335</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'A'</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token punctuation">{</span> <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">310</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'B'</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token punctuation">{</span> <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">234</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'C'</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token punctuation">{</span> <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">135</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'D'</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token punctuation">{</span> <span class="token literal-property property">value</span><span class="token operator">:</span> <span class="token number">1548</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'E'</span> <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">;</span><br></pre></div></div></div> <div class="md-live-tag">live</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 class="md-live-preview"></div></div> <p>其中，<code>avoidLabelOverlap</code> 是用来控制是否由 ECharts 调整标签位置以实现防止标签重叠。它的默认值是 <code>true</code>，而在这里，我们不希望标签位置调整到不是中间的位置，因此我们需要将其设为 <code>false</code>。</p> <p>这样，圆环图中间会显示高亮数据的 <code>name</code> 值。</p></article></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/zh/how-to/chart-types/pie/doughnut.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/pissang" target="_blank" class="post-contributor"><img alt="pissang" src="https://avatars.githubusercontent.com/pissang?size=60" loading="lazy"> <span>pissang</span></a><a href="https://github.com/guda-art" target="_blank" class="post-contributor"><img alt="guda-art" src="https://avatars.githubusercontent.com/guda-art?size=60" loading="lazy"> <span>guda-art</span></a></div></div></div></div></div></div> <link rel="stylesheet" href="//fastly.jsdelivr.net/npm/highlight.js@9.12.0/styles/github-gist.min.css"></div></div></div></div><script>window.__NUXT__=function(t,i,e,r,d,l,a,g,n,o,C,I,A,c,s,h,p,b,B,E,m,w,f,u,W,Z,y,v,G,H,x,D,F,J,S,U,L,z,T,V,R,O,P,k,K,M,Y,N,Q,X,_,j,$,q,tt,it,et,rt){return{layout:"default",data:[{html:'<h1 id="%E5%9C%86%E7%8E%AF%E5%9B%BE" tabindex="-1">圆环图</h1>\n<p>圆环图同样可以用来表示数据占总体的比例，相比于饼图，它中间空余的部分可以用来显示一些额外的文字等信息，因而也是一种常用的图表类型。</p>\n<h2 id="%E5%9F%BA%E7%A1%80%E5%9C%86%E7%8E%AF%E5%9B%BE" tabindex="-1">基础圆环图</h2>\n<p>在 ECharts 中，饼图的半径除了上一小节提到的，可以是一个数值或者字符串之外，还可以是一个包含两个元素的数组，每个元素可以为数值或字符串。当它是一个数组时，它的前一项表示内半径，后一项表示外半径，这样就形成了一个圆环图。</p>\n<p>从这个角度上来说，可以认为饼图是一个内半径为 0 的圆环图，也就是说，饼图是圆环图的特例。</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHRpdGxlOiB7CiAgICB0ZXh0OiAn5ZyG546v5Zu-55qE5L6L5a2QJywKICAgIGxlZnQ6ICdjZW50ZXInLAogICAgdG9wOiAnY2VudGVyJwogIH0sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdwaWUnLAogICAgICBkYXRhOiBbCiAgICAgICAgewogICAgICAgICAgdmFsdWU6IDMzNSwKICAgICAgICAgIG5hbWU6ICdBJwogICAgICAgIH0sCiAgICAgICAgewogICAgICAgICAgdmFsdWU6IDIzNCwKICAgICAgICAgIG5hbWU6ICdCJwogICAgICAgIH0sCiAgICAgICAgewogICAgICAgICAgdmFsdWU6IDE1NDgsCiAgICAgICAgICBuYW1lOiAnQycKICAgICAgICB9CiAgICAgIF0sCiAgICAgIHJhZGl1czogWyc0MCUnLCAnNzAlJ10KICAgIH0KICBdCn07\'" v-bind="{}" />\n<p>如果半径是数组，其中的两项也可以一项是数值，另一项是百分比形式的字符串。但是这样可能导致在某些分辨率下，内半径小于外半径。ECharts 会自动使用小的一项作为内半径，但是仍应小心这样可能会导致的非预期效果。</p>\n<h2 id="%E5%9C%A8%E5%9C%86%E7%8E%AF%E5%9B%BE%E4%B8%AD%E9%97%B4%E6%98%BE%E7%A4%BA%E9%AB%98%E4%BA%AE%E6%89%87%E5%BD%A2%E5%AF%B9%E5%BA%94%E7%9A%84%E6%96%87%E5%AD%97" tabindex="-1">在圆环图中间显示高亮扇形对应的文字</h2>\n<p>上面的例子展现了在圆环图中间显示固定文字的例子，下面我们要介绍，如何在圆环图中间显示鼠标高亮的扇形对应的文字。实现这一效果的思路是，利用系列的 <code>label</code>（默认用扇形颜色显示数据的 <code>name</code>），显示在圆环图中间。在默认情况下不显示系列的 <code>label</code>，在高亮时显示。具体的代码如下：</p>\n<md-live lang="js" code="\'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\'" v-bind="{}" />\n<p>其中，<code>avoidLabelOverlap</code> 是用来控制是否由 ECharts 调整标签位置以实现防止标签重叠。它的默认值是 <code>true</code>，而在这里，我们不希望标签位置调整到不是中间的位置，因此我们需要将其设为 <code>false</code>。</p>\n<p>这样，圆环图中间会显示高亮数据的 <code>name</code> 值。</p>\n',postPath:"zh/how-to/chart-types/pie/doughnut",title:"圆环图 - 饼图 - 常用图表类型 - 应用篇"}],fetch:{},error:null,state:{filled:!1,docVersion:"",ghVersion:"",visibleAffix:!1,homepage:{},adBlocked:!1,focusMode:!1,posts:{zh:[{title:"快速上手",dir:r},{title:"入门篇",dir:d,children:[{title:"获取 ECharts",dir:l},{title:"在项目中引入 ECharts",dir:a},{title:"资源列表",dir:g,draft:t},{title:"寻求帮助",dir:n},{title:"版本特性",dir:o,children:[{title:"ECharts 5 特性介绍",dir:C},{title:"v4 升级 v5 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