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style="display:none"></ul></li><li class="nav-item"><a href="/handbook/zh/how-to/cross-platform/server" class="nav-link"><span class="title">服务端渲染</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">数据处理</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/zh/how-to/data/dynamic-data" class="nav-link"><span class="title">动态的异步数据</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li><!----></ul></li><li class="nav-item"><a class="nav-link"><span class="title">标签</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/zh/how-to/label/rich-text" class="nav-link"><span class="title">富文本标签</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">交互</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/zh/how-to/interaction/drag" class="nav-link"><span class="title">拖拽的实现</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%9F%BA%E7%A1%80%E6%95%A3%E7%82%B9%E5%9B%BE" tabindex="-1">基础散点图</h1> <p>散点图，也是一种常见的图表类型。散点图由许多“点”组成，有时，这些点用来表示数据在坐标系中的位置（比如在笛卡尔坐标系下，表示数据在 x 轴和 y 轴上的坐标；在地图坐标系下，表示数据在地图上的某个位置等）；有时，这些点的大小、颜色等属性也可以映射到数据值，用以表现高维数据。</p> <h2 id="%E6%9C%80%E7%AE%80%E5%8D%95%E7%9A%84%E6%95%A3%E7%82%B9%E5%9B%BE" tabindex="-1">最简单的散点图</h2> <p>下面是一个横坐标为类目轴、纵坐标为数值轴的最简单的散点图配置：</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 = {
  xAxis: {
    data: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
  },
  yAxis: {},
  series: [
    {
      type: 'scatter',
      data: [220, 182, 191, 234, 290, 330, 310]
    }
  ]
};</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span>
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    <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> <h2 id="%E7%AC%9B%E5%8D%A1%E5%B0%94%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%8B%E7%9A%84%E6%95%A3%E7%82%B9%E5%9B%BE" tabindex="-1">笛卡尔坐标系下的散点图</h2> <p>在上文的例子中，散点图的横坐标都是离散的类目轴，而纵坐标都是连续的数值轴。而对于散点图而言，另一种常见的场景是，两个坐标轴均为连续的数值轴，也就是笛卡尔坐标系。这时的系列形式略有不同，数据的横坐标和纵坐标一同写在 <code>data</code> 中，而非坐标轴中。</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 = {
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      data: [
        [10, 5],
        [0, 8],
        [6, 10],
        [2, 12],
        [8, 9]
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  ]
};</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span>
  xAxis<span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
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  series<span class="token operator">:</span> <span class="token punctuation">[</span>
    <span class="token punctuation">{</span>
      type<span class="token operator">:</span> <span class="token string">'scatter'</span><span class="token punctuation">,</span>
      data<span class="token operator">:</span> <span class="token punctuation">[</span>
        <span class="token punctuation">[</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
        <span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">8</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
        <span class="token punctuation">[</span><span class="token number">6</span><span class="token punctuation">,</span> <span class="token number">10</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
        <span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">12</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
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<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> <h2 id="%E6%95%A3%E7%82%B9%E5%9B%BE%E6%A0%B7%E5%BC%8F%E8%AE%BE%E7%BD%AE" tabindex="-1">散点图样式设置</h2> <h3 id="%E5%9B%BE%E5%BD%A2%E7%9A%84%E5%BD%A2%E7%8A%B6" tabindex="-1">图形的形状</h3> <p>图形（symbol）指的是散点图中数据“点”的形状。有三类图形可选，一种是 ECharts 内置形状，第二种是图片，第三种是 SVG 的路径。</p> <p>ECharts 内置形状包括：圆形、矩形、圆角矩形、三角形、菱形、大头针形、箭头形，分别对应<code>'circle'</code>、<code>'rect'</code>、<code>'roundRect'</code>、<code>'triangle'</code>、<code>'diamond'</code>、<code>'pin'</code>、<code>'arrow'</code>。使用内置形状时，只要将 <code>symbol</code> 属性指定为形状名称对应的字符串即可。</p> <p>如果想要将图形指定为任意的图片，以 <code>'image://'</code> 开头，后面跟图片的绝对或相对地址。形如：<code>'image://http://example.com/xxx.png'</code> 或 <code>'image://./xxx.png'</code>。</p> <p>除此之外，还支持 SVG 的路径作为矢量图形，将 <code>symbol</code> 设置为以 <code>'path://'</code> 开头的 SVG 路径即可。使用矢量图形的好处是，图片不会因为缩放而产生锯齿或模糊，并且通常而言比图片形式的文件大小更小。路径的查看方法为，打开一个 <code>SVG</code> 文件，找到形如 <code>&lt;path d="M… L…">&lt;/path></code> 的路径，将 <code>d</code> 的值添加在 <code>'path://'</code> 后即可。</p> <p>下面，我们展示一个将图形设置为矢量爱心形状的方式。</p> <p>首先，我们需要一个爱心的 SVG 文件，可以使用矢量编辑软件绘制，或者从网上下载到相关资源。其内容如下：</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-xml line-numbers"><code><span class="token prolog">&lt;?xml version="1.0" encoding="iso-8859-1"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>svg</span> <span class="token attr-name">version</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>1.1<span class="token punctuation">"</span></span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>http://www.w3.org/2000/svg<span class="token punctuation">"</span></span> <span class="token attr-name"><span class="token namespace">xmlns:</span>xlink</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>http://www.w3.org/1999/xlink<span class="token punctuation">"</span></span> <span class="token attr-name">x</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>0px<span class="token punctuation">"</span></span> <span class="token attr-name">y</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>0px<span class="token punctuation">"</span></span> <span class="token attr-name">viewBox</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>0 0 51.997 51.997<span class="token punctuation">"</span></span> <span class="token attr-name">style</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>enable-background:new 0 0 51.997 51.997;<span class="token punctuation">"</span></span> <span class="token attr-name"><span class="token namespace">xml:</span>space</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>preserve<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>path</span> <span class="token attr-name">d</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>M51.911,16.242C51.152,7.888,45.239,1.827,37.839,1.827c-4.93,0-9.444,2.653-11.984,6.905 c-2.517-4.307-6.846-6.906-11.697-6.906c-7.399,0-13.313,6.061-14.071,14.415c-0.06,0.369-0.306,2.311,0.442,5.478 c1.078,4.568,3.568,8.723,7.199,12.013l18.115,16.439l18.426-16.438c3.631-3.291,6.121-7.445,7.199-12.014 C52.216,18.553,51.97,16.611,51.911,16.242z<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>svg</span><span class="token punctuation">></span></span></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> <p>在 ECharts 的 <code>symbol</code> 配置项中，我们使用 <code>d</code> 的值作为路径。</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 = {
  xAxis: {
    data: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
  },
  yAxis: {},
  series: [
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      type: 'scatter',
      data: [220, 182, 191, 234, 290, 330, 310],
      symbolSize: 20,
      symbol:
        'path://M51.911,16.242C51.152,7.888,45.239,1.827,37.839,1.827c-4.93,0-9.444,2.653-11.984,6.905 c-2.517-4.307-6.846-6.906-11.697-6.906c-7.399,0-13.313,6.061-14.071,14.415c-0.06,0.369-0.306,2.311,0.442,5.478 c1.078,4.568,3.568,8.723,7.199,12.013l18.115,16.439l18.426-16.438c3.631-3.291,6.121-7.445,7.199-12.014 C52.216,18.553,51.97,16.611,51.911,16.242z'
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};</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span>
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  <span class="token punctuation">}</span><span class="token punctuation">,</span>
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<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>这样，就能得到爱心形状的图形作为点的形状了。</p> <h3 id="%E5%9B%BE%E5%BD%A2%E7%9A%84%E5%A4%A7%E5%B0%8F" tabindex="-1">图形的大小</h3> <p>图形大小可以使用 <a href="https://echarts.apache.org/option.html#series-scatter.symbolSize"><code>series.symbolSize</code></a> 控制。它既可以是一个表示图形大小的像素值，也可以是一个包含两个 number 元素的数组，分别表示图形的宽和高。</p> <p>除此之外，它还可以是一个回调函数，其参数格式为：</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-ts line-numbers"><code><span class="token punctuation">(</span>value<span class="token operator">:</span> <span class="token builtin">Array</span> <span class="token operator">|</span> <span class="token builtin">number</span><span class="token punctuation">,</span> params<span class="token operator">:</span> Object<span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token builtin">number</span> <span class="token operator">|</span> <span class="token builtin">Array</span><span class="token punctuation">;</span></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> <p>第一个参数为数据值，第二个参数是数据项的其他参数。</p> <p>在下面的例子中，我们将散点图点的大小设置为与其数据值成正比。</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 = {
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  },
  yAxis: {},
  series: [
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      type: 'scatter',
      data: [220, 182, 191, 234, 290, 330, 310],
      symbolSize: function(value) {
        return value / 10;
      }
    }
  ]
};</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span>
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      <span class="token function-variable function">symbolSize</span><span class="token operator">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">value</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> value <span class="token operator">/</span> <span class="token number">10</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></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/scatter/basic-scatter.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><a href="https://github.com/Wdingding" target="_blank" class="post-contributor"><img alt="Wdingding" src="https://avatars.githubusercontent.com/Wdingding?size=60"> <span>Wdingding</span></a><a href="https://github.com/pissang" target="_blank" class="post-contributor"><img alt="pissang" src="https://avatars.githubusercontent.com/pissang?size=60"> <span>pissang</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>window.__NUXT__=function(i,t,e,d,r,l,a,c,n,o,s,g,C,h,I,A,M,p,E,w,L,N,B,b,y,T,j,x,u,z,m,D,S,O,f,k,G,J,V,H,v,Q,W,Y,F,U,Z,P,R,K,X,_,q,$,ii,ti,ei){return{layout:"default",data:[{html:'<h1 id="%E5%9F%BA%E7%A1%80%E6%95%A3%E7%82%B9%E5%9B%BE" tabindex="-1">基础散点图</h1>\n<p>散点图，也是一种常见的图表类型。散点图由许多“点”组成，有时，这些点用来表示数据在坐标系中的位置（比如在笛卡尔坐标系下，表示数据在 x 轴和 y 轴上的坐标；在地图坐标系下，表示数据在地图上的某个位置等）；有时，这些点的大小、颜色等属性也可以映射到数据值，用以表现高维数据。</p>\n<h2 id="%E6%9C%80%E7%AE%80%E5%8D%95%E7%9A%84%E6%95%A3%E7%82%B9%E5%9B%BE" tabindex="-1">最简单的散点图</h2>\n<p>下面是一个横坐标为类目轴、纵坐标为数值轴的最简单的散点图配置：</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHhBeGlzOiB7CiAgICBkYXRhOiBbJ1N1bicsICdNb24nLCAnVHVlJywgJ1dlZCcsICdUaHUnLCAnRnJpJywgJ1NhdCddCiAgfSwKICB5QXhpczoge30sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdzY2F0dGVyJywKICAgICAgZGF0YTogWzIyMCwgMTgyLCAxOTEsIDIzNCwgMjkwLCAzMzAsIDMxMF0KICAgIH0KICBdCn07\'" v-bind="{}" />\n<h2 id="%E7%AC%9B%E5%8D%A1%E5%B0%94%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%8B%E7%9A%84%E6%95%A3%E7%82%B9%E5%9B%BE" tabindex="-1">笛卡尔坐标系下的散点图</h2>\n<p>在上文的例子中，散点图的横坐标都是离散的类目轴，而纵坐标都是连续的数值轴。而对于散点图而言，另一种常见的场景是，两个坐标轴均为连续的数值轴，也就是笛卡尔坐标系。这时的系列形式略有不同，数据的横坐标和纵坐标一同写在 <code>data</code> 中，而非坐标轴中。</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHhBeGlzOiB7fSwKICB5QXhpczoge30sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdzY2F0dGVyJywKICAgICAgZGF0YTogWwogICAgICAgIFsxMCwgNV0sCiAgICAgICAgWzAsIDhdLAogICAgICAgIFs2LCAxMF0sCiAgICAgICAgWzIsIDEyXSwKICAgICAgICBbOCwgOV0KICAgICAgXQogICAgfQogIF0KfTs\'" v-bind="{}" />\n<h2 id="%E6%95%A3%E7%82%B9%E5%9B%BE%E6%A0%B7%E5%BC%8F%E8%AE%BE%E7%BD%AE" tabindex="-1">散点图样式设置</h2>\n<h3 id="%E5%9B%BE%E5%BD%A2%E7%9A%84%E5%BD%A2%E7%8A%B6" tabindex="-1">图形的形状</h3>\n<p>图形（symbol）指的是散点图中数据“点”的形状。有三类图形可选，一种是 ECharts 内置形状，第二种是图片，第三种是 SVG 的路径。</p>\n<p>ECharts 内置形状包括：圆形、矩形、圆角矩形、三角形、菱形、大头针形、箭头形，分别对应<code>\'circle\'</code>、<code>\'rect\'</code>、<code>\'roundRect\'</code>、<code>\'triangle\'</code>、<code>\'diamond\'</code>、<code>\'pin\'</code>、<code>\'arrow\'</code>。使用内置形状时，只要将 <code>symbol</code> 属性指定为形状名称对应的字符串即可。</p>\n<p>如果想要将图形指定为任意的图片，以 <code>\'image://\'</code> 开头，后面跟图片的绝对或相对地址。形如：<code>\'image://http://example.com/xxx.png\'</code> 或 <code>\'image://./xxx.png\'</code>。</p>\n<p>除此之外，还支持 SVG 的路径作为矢量图形，将 <code>symbol</code> 设置为以 <code>\'path://\'</code> 开头的 SVG 路径即可。使用矢量图形的好处是，图片不会因为缩放而产生锯齿或模糊，并且通常而言比图片形式的文件大小更小。路径的查看方法为，打开一个 <code>SVG</code> 文件，找到形如 <code>&lt;path d=&quot;M… L…&quot;&gt;&lt;/path&gt;</code> 的路径，将 <code>d</code> 的值添加在 <code>\'path://\'</code> 后即可。</p>\n<p>下面，我们展示一个将图形设置为矢量爱心形状的方式。</p>\n<p>首先，我们需要一个爱心的 SVG 文件，可以使用矢量编辑软件绘制，或者从网上下载到相关资源。其内容如下：</p>\n<md-code-block lang="xml" code="\'PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iaXNvLTg4NTktMSI_Pgo8c3ZnIHZlcnNpb249IjEuMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxuczp4bGluaz0iaHR0cDovL3d3dy53My5vcmcvMTk5OS94bGluayIgeD0iMHB4IiB5PSIwcHgiIHZpZXdCb3g9IjAgMCA1MS45OTcgNTEuOTk3IiBzdHlsZT0iZW5hYmxlLWJhY2tncm91bmQ6bmV3IDAgMCA1MS45OTcgNTEuOTk3OyIgeG1sOnNwYWNlPSJwcmVzZXJ2ZSI-CiAgICA8cGF0aCBkPSJNNTEuOTExLDE2LjI0MkM1MS4xNTIsNy44ODgsNDUuMjM5LDEuODI3LDM3LjgzOSwxLjgyN2MtNC45MywwLTkuNDQ0LDIuNjUzLTExLjk4NCw2LjkwNSBjLTIuNTE3LTQuMzA3LTYuODQ2LTYuOTA2LTExLjY5Ny02LjkwNmMtNy4zOTksMC0xMy4zMTMsNi4wNjEtMTQuMDcxLDE0LjQxNWMtMC4wNiwwLjM2OS0wLjMwNiwyLjMxMSwwLjQ0Miw1LjQ3OCBjMS4wNzgsNC41NjgsMy41NjgsOC43MjMsNy4xOTksMTIuMDEzbDE4LjExNSwxNi40MzlsMTguNDI2LTE2LjQzOGMzLjYzMS0zLjI5MSw2LjEyMS03LjQ0NSw3LjE5OS0xMi4wMTQgQzUyLjIxNiwxOC41NTMsNTEuOTcsMTYuNjExLDUxLjkxMSwxNi4yNDJ6Ii8-Cjwvc3ZnPg\'" line-highlights="\'\'" />\n<p>在 ECharts 的 <code>symbol</code> 配置项中，我们使用 <code>d</code> 的值作为路径。</p>\n<md-live lang="js" code="\'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\'" v-bind="{}" />\n<p>这样，就能得到爱心形状的图形作为点的形状了。</p>\n<h3 id="%E5%9B%BE%E5%BD%A2%E7%9A%84%E5%A4%A7%E5%B0%8F" tabindex="-1">图形的大小</h3>\n<p>图形大小可以使用 <a href="https://echarts.apache.org/option.html#series-scatter.symbolSize"><code>series.symbolSize</code></a> 控制。它既可以是一个表示图形大小的像素值，也可以是一个包含两个 number 元素的数组，分别表示图形的宽和高。</p>\n<p>除此之外，它还可以是一个回调函数，其参数格式为：</p>\n<md-code-block lang="ts" code="\'KHZhbHVlOiBBcnJheSB8IG51bWJlciwgcGFyYW1zOiBPYmplY3QpID0-IG51bWJlciB8IEFycmF5Ow\'" line-highlights="\'\'" />\n<p>第一个参数为数据值，第二个参数是数据项的其他参数。</p>\n<p>在下面的例子中，我们将散点图点的大小设置为与其数据值成正比。</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHhBeGlzOiB7CiAgICBkYXRhOiBbJ1N1bicsICdNb24nLCAnVHVlJywgJ1dlZCcsICdUaHUnLCAnRnJpJywgJ1NhdCddCiAgfSwKICB5QXhpczoge30sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdzY2F0dGVyJywKICAgICAgZGF0YTogWzIyMCwgMTgyLCAxOTEsIDIzNCwgMjkwLCAzMzAsIDMxMF0sCiAgICAgIHN5bWJvbFNpemU6IGZ1bmN0aW9uKHZhbHVlKSB7CiAgICAgICAgcmV0dXJuIHZhbHVlIC8gMTA7CiAgICAgIH0KICAgIH0KICBdCn07\'" v-bind="{}" 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