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href="/handbook/en/best-practices/aria" class="nav-link"><span class="title">Aria</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">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> <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="basic-scatter-chart" tabindex="-1">Basic Scatter Chart</h1> <p>Scatter Chart, a frequently used chart type, was constructed with several "points". These points sometimes represent the position of the value in the coordinate system (cartesian coordinate system, geo coordinate system, etc.), sometimes the size and color of items can be mapped to the value, represent high-dimensional data.</p> <h2 id="simple-example" tabindex="-1">Simple Example</h2> <p>The following example is a basic scatter chart configuration with the x-axis as category and the y-axis as value:</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>
  xAxis<span class="token operator">:</span> <span class="token punctuation">{</span>
    data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'Sun'</span><span class="token punctuation">,</span> <span class="token string">'Mon'</span><span class="token punctuation">,</span> <span class="token string">'Tue'</span><span class="token punctuation">,</span> <span class="token string">'Wed'</span><span class="token punctuation">,</span> <span class="token string">'Thu'</span><span class="token punctuation">,</span> <span class="token string">'Fri'</span><span class="token punctuation">,</span> <span class="token string">'Sat'</span><span class="token punctuation">]</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  yAxis<span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
  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 number">220</span><span class="token punctuation">,</span> <span class="token number">182</span><span class="token punctuation">,</span> <span class="token number">191</span><span class="token punctuation">,</span> <span class="token number">234</span><span class="token punctuation">,</span> <span class="token number">290</span><span class="token punctuation">,</span> <span class="token number">330</span><span class="token punctuation">,</span> <span class="token number">310</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> <h2 id="scatter-chart-in-cartesian-coordinate-system" tabindex="-1">Scatter Chart in Cartesian Coordinate System</h2> <p>In the previous case, the x-axis of the scatter chart is a discrete category axis and the y-axis is a continuous value axis. However, the normal scene for the scatter chart is to have 2 continuous value axis (also called the cartesian coordinate system). The series type is different in that both x-axis and y-axis value are included in <code>data</code>, but not in <code>xAxis</code> and <code>yAxis</code>.</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: {},
  yAxis: {},
  series: [
    {
      type: 'scatter',
      data: [
        [10, 5],
        [0, 8],
        [6, 10],
        [2, 12],
        [8, 9]
      ]
    }
  ]
};</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>
  yAxis<span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
  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>
        <span class="token punctuation">[</span><span class="token number">8</span><span class="token punctuation">,</span> <span class="token number">9</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> <h2 id="customized-scatter-chart" tabindex="-1">Customized Scatter Chart</h2> <h3 id="symbol-style" tabindex="-1">Symbol Style</h3> <p>Symbol refers to the item shape in a scatter chart. There are three types of config available. The first is ECharts built-in shape, the second is image, the last is the SVG path.</p> <p>The built-in shape in ECharts included: <code>'circle'</code>, <code>'rect'</code>(rectangle), <code>'roundRect'</code>(rounded rectangle), <code>'triangle'</code>, <code>'diamond'</code>, <code>'pin'</code> and <code>'arrow'</code>. To use built-in shapes, you need to state the <code>symbol</code> to the corresponding string.</p> <p>If you want to define the shape as any image, try to use <code>'image'</code> following by the path, eg. <code>'image://http://example.com/xxx.png'</code> or <code>'image://./xxx.png'</code>.</p> <p>ECharts <code>symbol</code> also supports SVG vector graphics. You can define <code>symbol</code> as an SVG file path that starts with <code>'path://'</code> to locate the vector graphics. The advantages of vector graphics are smaller size and no jagged or blurred.</p> <p>Method to find the SVG path: Open an <code>SVG</code> path; Find the path similar as <code>&lt;path d="M… L…">&lt;/path></code>; Add <code>d</code>'s value after <code>'path://'</code>. Let's check how to define an item to vector shape of heart.</p> <p>Firstly, we need an <code>SVG</code> file of a heart. You can draw one by vector editing software, or download one from the internet. Here is the content:</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>In ECharts, define config <code>symbol</code> as a path of d:</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],
      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'
    }
  ]
};</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>
    data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'Sun'</span><span class="token punctuation">,</span> <span class="token string">'Mon'</span><span class="token punctuation">,</span> <span class="token string">'Tue'</span><span class="token punctuation">,</span> <span class="token string">'Wed'</span><span class="token punctuation">,</span> <span class="token string">'Thu'</span><span class="token punctuation">,</span> <span class="token string">'Fri'</span><span class="token punctuation">,</span> <span class="token string">'Sat'</span><span class="token punctuation">]</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  yAxis<span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
  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 number">220</span><span class="token punctuation">,</span> <span class="token number">182</span><span class="token punctuation">,</span> <span class="token number">191</span><span class="token punctuation">,</span> <span class="token number">234</span><span class="token punctuation">,</span> <span class="token number">290</span><span class="token punctuation">,</span> <span class="token number">330</span><span class="token punctuation">,</span> <span class="token number">310</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
      symbolSize<span class="token operator">:</span> <span class="token number">20</span><span class="token punctuation">,</span>
      symbol<span class="token operator">:</span>
        <span class="token string">'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'</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>In this way, we have a heart vector of the item.</p> <h3 id="symbol-size" tabindex="-1">Symbol Size</h3> <p>The size of symbol is defined by <a href="https://echarts.apache.org/option.html#series-scatter.symbolSize"><code>series.symbolSize</code></a>. It can be s pixel value of the item size, or an array included two numbers, to define the width and height.</p> <p>Besides, it can be defined as a call back function. Here is an example of the format:</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>The first argument is the data value, and the second argument included other arguments of the data item. In the following instance, we define the size of the item proportional related to the data value.</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],
      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>
  xAxis<span class="token operator">:</span> <span class="token punctuation">{</span>
    data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'Sun'</span><span class="token punctuation">,</span> <span class="token string">'Mon'</span><span class="token punctuation">,</span> <span class="token string">'Tue'</span><span class="token punctuation">,</span> <span class="token string">'Wed'</span><span class="token punctuation">,</span> <span class="token string">'Thu'</span><span class="token punctuation">,</span> <span class="token string">'Fri'</span><span class="token punctuation">,</span> <span class="token string">'Sat'</span><span class="token punctuation">]</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  yAxis<span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
  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 number">220</span><span class="token punctuation">,</span> <span class="token number">182</span><span class="token punctuation">,</span> <span class="token number">191</span><span class="token punctuation">,</span> <span class="token number">234</span><span class="token punctuation">,</span> <span class="token number">290</span><span class="token punctuation">,</span> <span class="token number">330</span><span class="token punctuation">,</span> <span class="token number">310</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
      <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">Contributors</span> <a target="_blank" href="https://github.com/apache/echarts-handbook/tree/master/contents/en/how-to/chart-types/scatter/basic-scatter.md" title="Edit this Document" 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">Edit this page on GitHub</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"> <span>pissang</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,e,i,a,d,r,l,o,s,n,c,h,g,C,I,p,w,M,u,b,m,y,L,A,N,x,f,T,z,S,j,B,v,D,O,E,k,G,H,V,J,Q,W,Y,F,Z,P,U,R,K,X,_,q,$,tt,et,it,at,dt){return{layout:"default",data:[{html:'<h1 id="basic-scatter-chart" tabindex="-1">Basic Scatter Chart</h1>\n<p>Scatter Chart, a frequently used chart type, was constructed with several &quot;points&quot;. These points sometimes represent the position of the value in the coordinate system (cartesian coordinate system, geo coordinate system, etc.), sometimes the size and color of items can be mapped to the value, represent high-dimensional data.</p>\n<h2 id="simple-example" tabindex="-1">Simple Example</h2>\n<p>The following example is a basic scatter chart configuration with the x-axis as category and the y-axis as value:</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHhBeGlzOiB7CiAgICBkYXRhOiBbJ1N1bicsICdNb24nLCAnVHVlJywgJ1dlZCcsICdUaHUnLCAnRnJpJywgJ1NhdCddCiAgfSwKICB5QXhpczoge30sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdzY2F0dGVyJywKICAgICAgZGF0YTogWzIyMCwgMTgyLCAxOTEsIDIzNCwgMjkwLCAzMzAsIDMxMF0KICAgIH0KICBdCn07\'" v-bind="{}" />\n<h2 id="scatter-chart-in-cartesian-coordinate-system" tabindex="-1">Scatter Chart in Cartesian Coordinate System</h2>\n<p>In the previous case, the x-axis of the scatter chart is a discrete category axis and the y-axis is a continuous value axis. However, the normal scene for the scatter chart is to have 2 continuous value axis (also called the cartesian coordinate system). The series type is different in that both x-axis and y-axis value are included in <code>data</code>, but not in <code>xAxis</code> and <code>yAxis</code>.</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHhBeGlzOiB7fSwKICB5QXhpczoge30sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdzY2F0dGVyJywKICAgICAgZGF0YTogWwogICAgICAgIFsxMCwgNV0sCiAgICAgICAgWzAsIDhdLAogICAgICAgIFs2LCAxMF0sCiAgICAgICAgWzIsIDEyXSwKICAgICAgICBbOCwgOV0KICAgICAgXQogICAgfQogIF0KfTs\'" v-bind="{}" />\n<h2 id="customized-scatter-chart" tabindex="-1">Customized Scatter Chart</h2>\n<h3 id="symbol-style" tabindex="-1">Symbol Style</h3>\n<p>Symbol refers to the item shape in a scatter chart. There are three types of config available. The first is ECharts built-in shape, the second is image, the last is the SVG path.</p>\n<p>The built-in shape in ECharts included: <code>\'circle\'</code>, <code>\'rect\'</code>(rectangle), <code>\'roundRect\'</code>(rounded rectangle), <code>\'triangle\'</code>, <code>\'diamond\'</code>, <code>\'pin\'</code> and <code>\'arrow\'</code>. To use built-in shapes, you need to state the <code>symbol</code> to the corresponding string.</p>\n<p>If you want to define the shape as any image, try to use <code>\'image\'</code> following by the path, eg. <code>\'image://http://example.com/xxx.png\'</code> or <code>\'image://./xxx.png\'</code>.</p>\n<p>ECharts <code>symbol</code> also supports SVG vector graphics. You can define <code>symbol</code> as an SVG file path that starts with <code>\'path://\'</code> to locate the vector graphics. The advantages of vector graphics are smaller size and no jagged or blurred.</p>\n<p>Method to find the SVG path: Open an <code>SVG</code> path; Find the path similar as <code>&lt;path d=&quot;M… L…&quot;&gt;&lt;/path&gt;</code>; Add <code>d</code>\'s value after <code>\'path://\'</code>. Let\'s check how to define an item to vector shape of heart.</p>\n<p>Firstly, we need an <code>SVG</code> file of a heart. You can draw one by vector editing software, or download one from the internet. Here is the content:</p>\n<md-code-block lang="xml" code="\'PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iaXNvLTg4NTktMSI_Pgo8c3ZnIHZlcnNpb249IjEuMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxuczp4bGluaz0iaHR0cDovL3d3dy53My5vcmcvMTk5OS94bGluayIgeD0iMHB4IiB5PSIwcHgiIHZpZXdCb3g9IjAgMCA1MS45OTcgNTEuOTk3IiBzdHlsZT0iZW5hYmxlLWJhY2tncm91bmQ6bmV3IDAgMCA1MS45OTcgNTEuOTk3OyIgeG1sOnNwYWNlPSJwcmVzZXJ2ZSI-CiAgICA8cGF0aCBkPSJNNTEuOTExLDE2LjI0MkM1MS4xNTIsNy44ODgsNDUuMjM5LDEuODI3LDM3LjgzOSwxLjgyN2MtNC45MywwLTkuNDQ0LDIuNjUzLTExLjk4NCw2LjkwNSBjLTIuNTE3LTQuMzA3LTYuODQ2LTYuOTA2LTExLjY5Ny02LjkwNmMtNy4zOTksMC0xMy4zMTMsNi4wNjEtMTQuMDcxLDE0LjQxNWMtMC4wNiwwLjM2OS0wLjMwNiwyLjMxMSwwLjQ0Miw1LjQ3OCBjMS4wNzgsNC41NjgsMy41NjgsOC43MjMsNy4xOTksMTIuMDEzbDE4LjExNSwxNi40MzlsMTguNDI2LTE2LjQzOGMzLjYzMS0zLjI5MSw2LjEyMS03LjQ0NSw3LjE5OS0xMi4wMTQgQzUyLjIxNiwxOC41NTMsNTEuOTcsMTYuNjExLDUxLjkxMSwxNi4yNDJ6Ii8-Cjwvc3ZnPg\'" line-highlights="\'\'" />\n<p>In ECharts, define config <code>symbol</code> as a path of d:</p>\n<md-live lang="js" code="\'b3B0aW9uID0gewogIHhBeGlzOiB7CiAgICBkYXRhOiBbJ1N1bicsICdNb24nLCAnVHVlJywgJ1dlZCcsICdUaHUnLCAnRnJpJywgJ1NhdCddCiAgfSwKICB5QXhpczoge30sCiAgc2VyaWVzOiBbCiAgICB7CiAgICAgIHR5cGU6ICdzY2F0dGVyJywKICAgICAgZGF0YTogWzIyMCwgMTgyLCAxOTEsIDIzNCwgMjkwLCAzMzAsIDMxMF0sCiAgICAgIHN5bWJvbFNpemU6IDIwLAogICAgICBzeW1ib2w6CiAgICAgICAgJ3BhdGg6Ly9NNTEuOTExLDE2LjI0MkM1MS4xNTIsNy44ODgsNDUuMjM5LDEuODI3LDM3LjgzOSwxLjgyN2MtNC45MywwLTkuNDQ0LDIuNjUzLTExLjk4NCw2LjkwNSBjLTIuNTE3LTQuMzA3LTYuODQ2LTYuOTA2LTExLjY5Ny02LjkwNmMtNy4zOTksMC0xMy4zMTMsNi4wNjEtMTQuMDcxLDE0LjQxNWMtMC4wNiwwLjM2OS0wLjMwNiwyLjMxMSwwLjQ0Miw1LjQ3OCBjMS4wNzgsNC41NjgsMy41NjgsOC43MjMsNy4xOTksMTIuMDEzbDE4LjExNSwxNi40MzlsMTguNDI2LTE2LjQzOGMzLjYzMS0zLjI5MSw2LjEyMS03LjQ0NSw3LjE5OS0xMi4wMTQgQzUyLjIxNiwxOC41NTMsNTEuOTcsMTYuNjExLDUxLjkxMSwxNi4yNDJ6JwogICAgfQogIF0KfTs\'" v-bind="{}" />\n<p>In this way, we have a heart vector of the item.</p>\n<h3 id="symbol-size" tabindex="-1">Symbol Size</h3>\n<p>The size of symbol is defined by <a href="https://echarts.apache.org/option.html#series-scatter.symbolSize"><code>series.symbolSize</code></a>. It can be s pixel value of the item size, or an array included two numbers, to define the width and height.</p>\n<p>Besides, it can be defined as a call back function. Here is an example of the format:</p>\n<md-code-block lang="ts" code="\'KHZhbHVlOiBBcnJheSB8IG51bWJlciwgcGFyYW1zOiBPYmplY3QpID0-IG51bWJlciB8IEFycmF5Ow\'" line-highlights="\'\'" />\n<p>The first argument is the data value, and the second argument included other arguments of the data item. 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