Echarts 力导向图

const option = {
  series: [{
    type: 'graph',
    layout: 'force',
    roam: true,
    nodes: nodes,
    links: links,
    force: {
      repulsion: 200,
      gravity: 0.01,
      edgeLength: 200
    },
    labelLayout: {
      hideOverlap: true
    },
    scaleLimit: {
      min: 0.4,
      max: 2
    },
    lineStyle: {
      color: 'source',
      curveness: 0.01
    },
    itemStyle: {
      color: {
        type: "radial",
        x: 0.5,
        y: 0.5,
        r: 0.5,
        colorStops: [
          {
            offset: 0,
            color: "#3dd67a", // 0% 处的颜色
          },
          {
            offset: 0.7,
            color: "#3dd67a", // 0% 处的颜色
          },
          {
            offset: 1,
            color: "#95dcb2", // 100% 处的颜色
          },
        ],
        global: false, // 缺省为 false
      },
    },
    label: {
      show: true,
      position: "bottom",
      distance: 5,
      fontSize: 18,
      align: "center",
    },
    autoCurveness: 0.01, //多条边的时候，自动计算曲率
    graphic: {
      color: [
        '#5470c6',
        '#91cc75',
        '#fac858',
        '#ee6666',
        '#73c0de',
        '#3ba272',
        '#fc8452',
        '#9a60b4',
        '#ea7ccc']
    },
  }]
};