数据可视化----ECharts---散点图（五）

数据可视化----ECharts—散点图（五）百度百科上散点图的定义散点图是指在回归分析中，数据点在直角坐标系平面上的分布图，散点图表示因变量随自变量而变化的大致趋势，据此可以选择合适的函数对数据点进行拟合。散点图的特点用两组数据构成多个坐标点，考察坐标点的分布，判断两变量之间是否存在某种关联或总结坐标点的分布模式。散点图将序列显示为一组点。值由点在图表中的位置表示。类别由图表中的不同标记表示。散

云墨-款哥的博客

11292人浏览 · 2021-08-21 00:25:38

云墨-款哥的博客 · 2021-08-21 00:25:38 发布

数据可视化----ECharts—散点图（五）

百度百科上散点图的定义

散点图是指在回归分析中，数据点在直角坐标系平面上的分布图，散点图表示因变量随自变量而变化的大致趋势，据此可以选择合适的函数对数据点进行拟合。

散点图的特点

用两组数据构成多个坐标点，考察坐标点的分布，判断两变量之间是否存在某种关联或总结坐标点的分布模式。
散点图将序列显示为一组点。
值由点在图表中的位置表示。
类别由图表中的不同标记表示。
散点图通常用于比较跨类别的聚合数据。

案例说明

我们本次实现一个小案例是我们用一组数据来证明身高和体重的关系，一般情况下身高和体重应当是正相关的，身高越高的人一般情况下，体重也就越大
PS：这里说的是通常情况下，我们不要拿个例来反驳哈

Echarts中如何实现散点图

ECharts最基本的代码结构

引入js文件，DOM容器，初始化对象，设置option

x轴和y轴数据二维数组

[ [身高,体重],[身高,体重],[身高,体重],… ]
这里我们准备了五百组不同的数据

将type的值设置为scatter, x轴和y轴的type都是value

注意：这个配置是散点图的关键

下面让我们来一起实现一下

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="lib/echarts.min.js"></script>
</head>

<body>
  <div style="width: 600px;height:400px"></div>
  <script>
    //1. ECharts最基本的代码结构
    //2. x轴和y轴数据 二维数组 [ [身高,体重],...   ]
    //3. 将type的值设置为scatter, x轴和y轴的type都是value
    var data = [{ "gender": "female", "height": 161.2, "weight": 51.6 }, { "gender": "female", "height": 167.5, "weight": 59 }, { "gender": "female", "height": 159.5, "weight": 49.2 }, { "gender": "female", "height": 157, "weight": 63 }, { "gender": "female", "height": 155.8, "weight": 53.6 }, { "gender": "female", "height": 170, "weight": 59 }, { "gender": "female", "height": 159.1, "weight": 47.6 }, { "gender": "female", "height": 166, "weight": 69.8 }, { "gender": "female", "height": 176.2, "weight": 66.8 }, { "gender": "female", "height": 160.2, "weight": 75.2 }, { "gender": "female", "height": 172.5, "weight": 55.2 }, { "gender": "female", "height": 170.9, "weight": 54.2 }, { "gender": "female", "height": 172.9, "weight": 62.5 }, { "gender": "female", "height": 153.4, "weight": 42 }, { "gender": "female", "height": 160, "weight": 50 }, { "gender": "female", "height": 147.2, "weight": 49.8 }, { "gender": "female", "height": 168.2, "weight": 49.2 }, { "gender": "female", "height": 175, "weight": 73.2 }, { "gender": "female", "height": 157, "weight": 47.8 }, { "gender": "female", "height": 167.6, "weight": 68.8 }, { "gender": "female", "height": 159.5, "weight": 50.6 }, { "gender": "female", "height": 175, "weight": 82.5 }, { "gender": "female", "height": 166.8, "weight": 57.2 }, { "gender": "female", "height": 176.5, "weight": 87.8 }, { "gender": "female", "height": 170.2, "weight": 72.8 }, { "gender": "female", "height": 174, "weight": 54.5 }, { "gender": "female", "height": 173, "weight": 59.8 }, { "gender": "female", "height": 179.9, "weight": 67.3 }, { "gender": "female", "height": 170.5, "weight": 67.8 }, { "gender": "female", "height": 160, "weight": 47 }, { "gender": "female", "height": 154.4, "weight": 46.2 }, { "gender": "female", "height": 162, "weight": 55 }, { "gender": "female", "height": 176.5, "weight": 83 }, { "gender": "female", "height": 160, "weight": 54.4 }, { "gender": "female", "height": 152, "weight": 45.8 }, { "gender": "female", "height": 162.1, "weight": 53.6 }, { "gender": "female", "height": 170, "weight": 73.2 }, { "gender": "female", "height": 160.2, "weight": 52.1 }, { "gender": "female", "height": 161.3, "weight": 67.9 }, { "gender": "female", "height": 166.4, "weight": 56.6 }, { "gender": "female", "height": 168.9, "weight": 62.3 }, { "gender": "female", "height": 163.8, "weight": 58.5 }, { "gender": "female", "height": 167.6, "weight": 54.5 }, { "gender": "female", "height": 160, "weight": 50.2 }, { "gender": "female", "height": 161.3, "weight": 60.3 }, { "gender": "female", "height": 167.6, "weight": 58.3 }, { "gender": "female", "height": 165.1, "weight": 56.2 }, { "gender": "female", "height": 160, "weight": 50.2 }, { "gender": "female", "height": 170, "weight": 72.9 }, { "gender": "female", "height": 157.5, "weight": 59.8 }, { "gender": "female", "height": 167.6, "weight": 61 }, { "gender": "female", "height": 160.7, "weight": 69.1 }, { "gender": "female", "height": 163.2, "weight": 55.9 }, { 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{ "gender": "female", "height": 164.5, "weight": 52.3 }, { "gender": "female", "height": 163.5, "weight": 50 }, { "gender": "female", "height": 152, "weight": 59.3 }, { "gender": "female", "height": 169, "weight": 62.5 }, { "gender": "female", "height": 164, "weight": 55.7 }, { "gender": "female", "height": 161.2, "weight": 54.8 }, { "gender": "female", "height": 155, "weight": 45.9 }, { "gender": "female", "height": 170, "weight": 70.6 }, { "gender": "female", "height": 176.2, "weight": 67.2 }, { "gender": "female", "height": 170, "weight": 69.4 }, { "gender": "female", "height": 162.5, "weight": 58.2 }, { "gender": "female", "height": 170.3, "weight": 64.8 }, { "gender": "female", "height": 164.1, "weight": 71.6 }, { "gender": "female", "height": 169.5, "weight": 52.8 }, { "gender": "female", "height": 163.2, "weight": 59.8 }, { "gender": "female", "height": 154.5, "weight": 49 }, { "gender": "female", "height": 159.8, "weight": 50 }, { "gender": "female", "height": 173.2, "weight": 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173.5, "weight": 81.8 }, { "gender": "male", "height": 178, "weight": 89.6 }, { "gender": "male", "height": 180.3, "weight": 82.8 }, { "gender": "male", "height": 180.3, "weight": 76.4 }, { "gender": "male", "height": 164.5, "weight": 63.2 }, { "gender": "male", "height": 173, "weight": 60.9 }, { "gender": "male", "height": 183.5, "weight": 74.8 }, { "gender": "male", "height": 175.5, "weight": 70 }, { "gender": "male", "height": 188, "weight": 72.4 }, { "gender": "male", "height": 189.2, "weight": 84.1 }, { "gender": "male", "height": 172.8, "weight": 69.1 }, { "gender": "male", "height": 170, "weight": 59.5 }, { "gender": "male", "height": 182, "weight": 67.2 }, { "gender": "male", "height": 170, "weight": 61.3 }, { "gender": "male", "height": 177.8, "weight": 68.6 }, { "gender": "male", "height": 184.2, "weight": 80.1 }, { "gender": "male", "height": 186.7, "weight": 87.8 }, { "gender": "male", "height": 171.4, "weight": 84.7 }, { "gender": "male", "height": 172.7, "weight": 73.4 }, { "gender": "male", "height": 175.3, "weight": 72.1 }, { "gender": "male", "height": 180.3, "weight": 82.6 }, { "gender": "male", "height": 182.9, "weight": 88.7 }, { "gender": "male", "height": 188, "weight": 84.1 }, { "gender": "male", "height": 177.2, "weight": 94.1 }, { "gender": "male", "height": 172.1, "weight": 74.9 }, { "gender": "male", "height": 167, "weight": 59.1 }, { "gender": "male", "height": 169.5, "weight": 75.6 }, { "gender": "male", "height": 174, "weight": 86.2 }, { "gender": "male", "height": 172.7, "weight": 75.3 }, { "gender": "male", "height": 182.2, "weight": 87.1 }, { "gender": "male", "height": 164.1, "weight": 55.2 }, { "gender": "male", "height": 163, "weight": 57 }, { "gender": "male", "height": 171.5, "weight": 61.4 }, { "gender": "male", "height": 184.2, "weight": 76.8 }, { "gender": "male", "height": 174, "weight": 86.8 }, { "gender": "male", "height": 174, "weight": 72.2 }, { "gender": "male", "height": 177, "weight": 71.6 }, { "gender": "male", "height": 186, "weight": 84.8 }, { "gender": "male", "height": 167, "weight": 68.2 }, { "gender": "male", "height": 171.8, "weight": 66.1 }, { "gender": "male", "height": 182, "weight": 72 }, { "gender": "male", "height": 167, "weight": 64.6 }, { "gender": "male", "height": 177.8, "weight": 74.8 }, { "gender": "male", "height": 164.5, "weight": 70 }, { "gender": "male", "height": 192, "weight": 101.6 }, { "gender": "male", "height": 175.5, "weight": 63.2 }, { "gender": "male", "height": 171.2, "weight": 79.1 }, { "gender": "male", "height": 181.6, "weight": 78.9 }, { "gender": "male", "height": 167.4, "weight": 67.7 }, { "gender": "male", "height": 181.1, "weight": 66 }, { "gender": "male", "height": 177, "weight": 68.2 }, { "gender": "male", "height": 174.5, "weight": 63.9 }, { "gender": "male", "height": 177.5, "weight": 72 }, { "gender": "male", "height": 170.5, "weight": 56.8 }, { "gender": "male", "height": 182.4, "weight": 74.5 }, { "gender": "male", "height": 197.1, "weight": 90.9 }, { "gender": "male", "height": 180.1, "weight": 93 }, { "gender": "male", "height": 175.5, "weight": 80.9 }, { "gender": "male", "height": 180.6, "weight": 72.7 }, { "gender": "male", "height": 184.4, "weight": 68 }, { "gender": "male", "height": 175.5, "weight": 70.9 }, { "gender": "male", "height": 180.6, "weight": 72.5 }, { "gender": "male", "height": 177, "weight": 72.5 }, { "gender": "male", "height": 177.1, "weight": 83.4 }, { "gender": "male", "height": 181.6, "weight": 75.5 }, { "gender": "male", "height": 176.5, "weight": 73 }, { "gender": "male", "height": 175, "weight": 70.2 }, { "gender": "male", "height": 174, "weight": 73.4 }, { "gender": "male", "height": 165.1, "weight": 70.5 }, { "gender": "male", "height": 177, "weight": 68.9 }, { "gender": "male", "height": 192, "weight": 102.3 }, { "gender": "male", "height": 176.5, "weight": 68.4 }, { "gender": "male", "height": 169.4, "weight": 65.9 }, { "gender": "male", "height": 182.1, "weight": 75.7 }, { "gender": "male", "height": 179.8, "weight": 84.5 }, { "gender": "male", "height": 175.3, "weight": 87.7 }, { "gender": "male", "height": 184.9, "weight": 86.4 }, { "gender": "male", "height": 177.3, "weight": 73.2 }, { "gender": "male", "height": 167.4, "weight": 53.9 }, { "gender": "male", "height": 178.1, "weight": 72 }, { "gender": "male", "height": 168.9, "weight": 55.5 }, { "gender": "male", "height": 157.2, "weight": 58.4 }, { "gender": "male", "height": 180.3, "weight": 83.2 }, { "gender": "male", "height": 170.2, "weight": 72.7 }, { "gender": "male", "height": 177.8, "weight": 64.1 }, { "gender": "male", "height": 172.7, "weight": 72.3 }, { "gender": "male", "height": 165.1, "weight": 65 }, { "gender": "male", "height": 186.7, "weight": 86.4 }, { "gender": "male", "height": 165.1, "weight": 65 }, { "gender": "male", "height": 174, "weight": 88.6 }, { "gender": "male", "height": 175.3, "weight": 84.1 }, { "gender": "male", "height": 185.4, "weight": 66.8 }, { "gender": "male", "height": 177.8, "weight": 75.5 }, { "gender": "male", "height": 180.3, "weight": 93.2 }, { "gender": "male", "height": 180.3, "weight": 82.7 }, { "gender": "male", "height": 177.8, "weight": 58 }, { "gender": "male", "height": 177.8, "weight": 79.5 }, { "gender": "male", "height": 177.8, "weight": 78.6 }, { "gender": "male", "height": 177.8, "weight": 71.8 }, { "gender": "male", "height": 177.8, "weight": 116.4 }, { "gender": "male", "height": 163.8, "weight": 72.2 }, { "gender": "male", "height": 188, "weight": 83.6 }, { "gender": "male", "height": 198.1, "weight": 85.5 }, { "gender": "male", "height": 175.3, "weight": 90.9 }, { "gender": "male", "height": 166.4, "weight": 85.9 }, { "gender": "male", "height": 190.5, "weight": 89.1 }, { "gender": "male", "height": 166.4, "weight": 75 }, { "gender": "male", "height": 177.8, "weight": 77.7 }, { "gender": "male", "height": 179.7, "weight": 86.4 }, { "gender": "male", "height": 172.7, "weight": 90.9 }, { "gender": "male", "height": 190.5, "weight": 73.6 }, { "gender": "male", "height": 185.4, "weight": 76.4 }, { "gender": "male", "height": 168.9, "weight": 69.1 }, { "gender": "male", "height": 167.6, "weight": 84.5 }, { "gender": "male", "height": 175.3, "weight": 64.5 }, { "gender": "male", "height": 170.2, "weight": 69.1 }, { "gender": "male", "height": 190.5, "weight": 108.6 }, { "gender": "male", "height": 177.8, "weight": 86.4 }, { "gender": "male", "height": 190.5, "weight": 80.9 }, { "gender": "male", "height": 177.8, "weight": 87.7 }, { "gender": "male", "height": 184.2, "weight": 94.5 }, { "gender": "male", "height": 176.5, "weight": 80.2 }, { "gender": "male", "height": 177.8, "weight": 72 }, { "gender": "male", "height": 180.3, "weight": 71.4 }, { "gender": "male", "height": 171.4, "weight": 72.7 }, { "gender": "male", "height": 172.7, "weight": 84.1 }, { "gender": "male", "height": 172.7, "weight": 76.8 }, { "gender": "male", "height": 177.8, "weight": 63.6 }, { "gender": "male", "height": 177.8, "weight": 80.9 }, { "gender": "male", "height": 182.9, "weight": 80.9 }, { "gender": "male", "height": 170.2, "weight": 85.5 }, { "gender": "male", "height": 167.6, "weight": 68.6 }, { "gender": "male", "height": 175.3, "weight": 67.7 }, { "gender": "male", "height": 165.1, "weight": 66.4 }, { "gender": "male", "height": 185.4, "weight": 102.3 }, { "gender": "male", "height": 181.6, "weight": 70.5 }, { "gender": "male", "height": 172.7, "weight": 95.9 }, { "gender": "male", "height": 190.5, "weight": 84.1 }, { "gender": "male", "height": 179.1, "weight": 87.3 }, { "gender": "male", "height": 175.3, "weight": 71.8 }, { "gender": "male", "height": 170.2, "weight": 65.9 }, { "gender": "male", "height": 193, "weight": 95.9 }, { "gender": "male", "height": 171.4, "weight": 91.4 }, { "gender": "male", "height": 177.8, "weight": 81.8 }, { "gender": "male", "height": 177.8, "weight": 96.8 }, { "gender": "male", "height": 167.6, "weight": 69.1 }, { "gender": "male", "height": 167.6, "weight": 82.7 }, { "gender": "male", "height": 180.3, "weight": 75.5 }, { "gender": "male", "height": 182.9, "weight": 79.5 }, { "gender": "male", "height": 176.5, "weight": 73.6 }, { "gender": "male", "height": 186.7, "weight": 91.8 }, { "gender": "male", "height": 188, "weight": 84.1 }, { "gender": "male", "height": 188, "weight": 85.9 }, { "gender": "male", "height": 177.8, "weight": 81.8 }, { "gender": "male", "height": 174, "weight": 82.5 }, { "gender": "male", "height": 177.8, "weight": 80.5 }, { "gender": "male", "height": 171.4, "weight": 70 }, { "gender": "male", "height": 185.4, "weight": 81.8 }, { "gender": "male", "height": 185.4, "weight": 84.1 }, { "gender": "male", "height": 188, "weight": 90.5 }, { "gender": "male", "height": 188, "weight": 91.4 }, { "gender": "male", "height": 182.9, "weight": 89.1 }, { "gender": "male", "height": 176.5, "weight": 85 }, { "gender": "male", "height": 175.3, "weight": 69.1 }, { "gender": "male", "height": 175.3, "weight": 73.6 }, { "gender": "male", "height": 188, "weight": 80.5 }, { "gender": "male", "height": 188, "weight": 82.7 }, { "gender": "male", "height": 175.3, "weight": 86.4 }, { "gender": "male", "height": 170.5, "weight": 67.7 }, { "gender": "male", "height": 179.1, "weight": 92.7 }, { "gender": "male", "height": 177.8, "weight": 93.6 }, { "gender": "male", "height": 175.3, "weight": 70.9 }, { "gender": "male", "height": 182.9, "weight": 75 }, { "gender": "male", "height": 170.8, "weight": 93.2 }, { "gender": "male", "height": 188, "weight": 93.2 }, { "gender": "male", "height": 180.3, "weight": 77.7 }, { "gender": "male", "height": 177.8, "weight": 61.4 }, { "gender": "male", "height": 185.4, "weight": 94.1 }, { "gender": "male", "height": 168.9, "weight": 75 }, { "gender": "male", "height": 185.4, "weight": 83.6 }, { "gender": "male", "height": 180.3, "weight": 85.5 }, { "gender": "male", "height": 174, "weight": 73.9 }, { "gender": "male", "height": 167.6, "weight": 66.8 }, { "gender": "male", "height": 182.9, "weight": 87.3 }, { "gender": "male", "height": 160, "weight": 72.3 }, { "gender": "male", "height": 180.3, "weight": 88.6 }, { "gender": "male", "height": 167.6, "weight": 75.5 }, { "gender": "male", "height": 186.7, "weight": 101.4 }, { "gender": "male", "height": 175.3, "weight": 91.1 }, { "gender": "male", "height": 175.3, "weight": 67.3 }, { "gender": "male", "height": 175.9, "weight": 77.7 }, { "gender": "male", "height": 175.3, "weight": 81.8 }, { "gender": "male", "height": 179.1, "weight": 75.5 }, { "gender": "male", "height": 181.6, "weight": 84.5 }, { "gender": "male", "height": 177.8, "weight": 76.6 }, { "gender": "male", "height": 182.9, "weight": 85 }, { "gender": "male", "height": 177.8, "weight": 102.5 }, { "gender": "male", "height": 184.2, "weight": 77.3 }, { "gender": "male", "height": 179.1, "weight": 71.8 }, { "gender": "male", "height": 176.5, "weight": 87.9 }, { "gender": "male", "height": 188, "weight": 94.3 }, { "gender": "male", "height": 174, "weight": 70.9 }, { "gender": "male", "height": 167.6, "weight": 64.5 }, { "gender": "male", "height": 170.2, "weight": 77.3 }, { "gender": "male", "height": 167.6, "weight": 72.3 }, { "gender": "male", "height": 188, "weight": 87.3 }, { "gender": "male", "height": 174, "weight": 80 }, { "gender": "male", "height": 176.5, "weight": 82.3 }, { "gender": "male", "height": 180.3, "weight": 73.6 }, { "gender": "male", "height": 167.6, "weight": 74.1 }, { "gender": "male", "height": 188, "weight": 85.9 }, { "gender": "male", "height": 180.3, "weight": 73.2 }, { "gender": "male", "height": 167.6, "weight": 76.3 }, { "gender": "male", "height": 183, "weight": 65.9 }, { "gender": "male", "height": 183, "weight": 90.9 }, { "gender": "male", "height": 179.1, "weight": 89.1 }, { "gender": "male", "height": 170.2, "weight": 62.3 }, { "gender": "male", "height": 177.8, "weight": 82.7 }, { "gender": "male", "height": 179.1, "weight": 79.1 }, { "gender": "male", "height": 190.5, "weight": 98.2 }, { "gender": "male", "height": 177.8, "weight": 84.1 }, { "gender": "male", "height": 180.3, "weight": 83.2 }, { "gender": "male", "height": 180.3, "weight": 83.2 }]
    var axisData = []
    //这里的for循环实现了对上面数据的深拷贝
    for( var i=0;i<data.length;i++) {
      var height = data[i].height
      var weight = data[i].weight
      var newArr = [height, weight]
      axisData.push(newArr)
    }
    console.log(axisData)
    var mCharts = echarts.init(document.querySelector("div"))
    var option = {
      xAxis: {
        type: 'value',
        scale: true
      },
      yAxis: {
        type: 'value',
        scale: true
      },
      series: [
        {
          type: 'scatter', // 指明图表的类型为散点图
          data: axisData
        }
      ]
    }
    mCharts.setOption(option)
  </script>
</body>
</html>

这时候们就实现了一张基本的散点图
在这里插入图片描述

散点图的常见效果

散点的大小

这里我们用到了身体质量指数BMI
计算公式为：BMI=体重÷身高^2。（体重单位：千克；身高单位：米。）
另外我们把BMI=28作为分隔线，大于28就是肥胖，小于28的就是正常

symbolSize: function (arg) { // 控制散点的大小
   // console.log(arg)
   var height = arg[0] / 100
   var weight = arg[1]
   // bmi = 体重kg / (身高m*身高m)   大于28,就代表肥胖
   var bmi = weight / (height * height)
   if (bmi > 28) {
       return 20
   }
       return 5
}

散点的样式

itemStyle: { // 控制散点的样式
  color: function (arg) {
     // console.log(arg)
     var height = arg.data[0] / 100
     var weight = arg.data[1]
     // bmi = 体重kg / (身高m*身高m)   大于28,就代表肥胖
     var bmi = weight / (height * height)
     if (bmi > 28) {
         return 'red'
     }
         return 'green'
  }
}

涟漪动画效果

type: 'effectScatter', // 指明图表为带涟漪动画的散点图
showEffectOn: 'emphasis', // 出现涟漪动画的时机 render emphasis
rippleEffect: {
   scale: 10 // 涟漪动画时, 散点的缩放比例
}

完整代码

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="lib/echarts.min.js"></script>
</head>

<body>
  <div style="width: 600px;height:400px"></div>
  <script>
    //1. ECharts最基本的代码结构
    //2. x轴和y轴数据 二维数组 [ [身高,体重],...   ]
    //3. 将type的值设置为scatter, x轴和y轴的type都是value
    var data = [
      // 这个数据我就不写了
    ]
    var axisData = []
    for (var i = 0; i < data.length; i++) {
      var height = data[i].height
      var weight = data[i].weight
      var newArr = [height, weight]
      axisData.push(newArr)
    }
    console.log(axisData)
    var mCharts = echarts.init(document.querySelector("div"))
    var option = {
      xAxis: {
        type: 'value',
        scale: true
      },
      yAxis: {
        type: 'value',
        scale: true
      },
      series: [
        {
          // type: 'scatter',
          type: 'effectScatter', // 指明图表为带涟漪动画的散点图
          showEffectOn: 'emphasis', // 出现涟漪动画的时机 render emphasis
          rippleEffect: {
            scale: 10 // 涟漪动画时, 散点的缩放比例
          },
          data: axisData,
          // symbolSize: 30
          symbolSize: function (arg) { // 控制散点的大小
            // console.log(arg)
            var height = arg[0] / 100
            var weight = arg[1]
            // bmi = 体重kg / (身高m*身高m)   大于28,就代表肥胖
            var bmi = weight / (height * height)
            if (bmi > 28) {
              return 20
            }
            return 5
          },
          itemStyle: { // 控制散点的样式
            color: function (arg) {
              // console.log(arg)
              var height = arg.data[0] / 100
              var weight = arg.data[1]
              // bmi = 体重kg / (身高m*身高m)   大于28,就代表肥胖
              var bmi = weight / (height * height)
              if (bmi > 28) {
                return 'red'
              }
              return 'green'
            }
          }
        }
      ]
    }
    mCharts.setOption(option)
  </script>
</body>

</html>