线图-颜色随机分配echarts lines配置项内容和展示

配置项如下
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37.4414], [104.3262, 37.4414]]] } }, { type: 'Feature', id: 'hai_nan', properties: { name: '海南', cp: [109.9512, 19.2041], childNum: 18 }, geometry: { type: 'Polygon', coordinates: [[[108.6328, 19.3799], [109.0723, 19.6436], [109.248, 19.9512], [109.5996, 20.0391], [110.0391, 20.127], [110.3906, 20.127], [110.5664, 20.2588], [110.6543, 20.2588], [111.0938, 19.9512], [111.2695, 19.9951], [110.6543, 19.1602], [110.5664, 18.6768], [110.2148, 18.5889], [110.0391, 18.3691], [109.8633, 18.3691], [109.6875, 18.1055], [108.9844, 18.2813], [108.6328, 18.457], [108.6328, 19.3799]]] } }, { type: 'Feature', id: 'tai_wan', properties: { name: '台湾', cp: [121.0254, 23.5986], childNum: 1 }, geometry: { type: 'Polygon', coordinates: [[[121.9043, 25.0488], [121.9922, 25.0049], [121.8164, 24.7412], [121.9043, 24.5654], [121.6406, 24.0381], [121.377, 23.1152], [121.0254, 22.6758], [120.8496, 22.0605], [120.7617, 21.9287], [120.6738, 22.3242], [120.2344, 22.5879], [120.0586, 23.0713], [120.1465, 23.6865], [121.0254, 25.0488], [121.5527, 25.3125], [121.9043, 25.0488]]] } }, { type: 'Feature', id: 'bei_jing', properties: { name: '北京', cp: [116.4551, 40.2539], childNum: 19 }, geometry: { type: 'Polygon', coordinates: [[[117.4219, 40.21], [117.334, 40.1221], [117.2461, 40.0781], [116.8066, 39.9902], [116.8945, 39.8145], [116.8945, 39.6826], [116.8066, 39.5947], [116.543, 39.5947], [116.3672, 39.4629], [116.1914, 39.5947], [115.752, 39.5068], [115.4883, 39.6387], [115.4004, 39.9463], [115.9277, 40.2539], [115.752, 40.5615], [116.1035, 40.6055], [116.1914, 40.7813], [116.4551, 40.7813], [116.3672, 40.9131], [116.6309, 41.0449], [116.9824, 40.6934], [117.4219, 40.6494], [117.2461, 40.5176], [117.4219, 40.21]]] } }, { type: 'Feature', id: 'tian_jin', properties: { name: '天津', cp: [117.4219, 39.4189], childNum: 18 }, geometry: { type: 'Polygon', coordinates: [[[116.8066, 39.5947], [116.8945, 39.6826], [117.1582, 39.6387], [117.1582, 39.8145], [117.2461, 40.0781], [117.334, 40.1221], [117.4219, 40.21], [117.6855, 40.0781], [117.6855, 39.9902], [117.5098, 39.9902], [117.5098, 39.7705], [117.6855, 39.5947], [117.9492, 39.5947], [117.8613, 39.4189], [118.0371, 39.2432], [118.0371, 39.1992], [117.8613, 39.1113], [117.5977, 38.6279], [117.2461, 38.54], [116.7188, 38.8037], [116.7188, 38.9355], [116.8945, 39.1113], [116.8066, 39.5947]]] } }, { type: 'Feature', id: 'shang_hai', properties: { name: '上海', cp: [121.4648, 31.2891], childNum: 19 }, geometry: { type: 'Polygon', coordinates: [[[120.9375, 31.0254], [121.2012, 31.4648], [121.377, 31.5088], [121.1133, 31.7285], [121.2012, 31.8604], [121.9922, 31.5967], [121.9043, 31.1572], [121.9922, 30.8057], [121.2891, 30.6738], [120.9375, 31.0254]]] } }, { type: 'Feature', id: 'xiang_gang', properties: { name: '香港', cp: [114.2578, 22.3242], childNum: 1 }, geometry: { type: 'Polygon', coordinates: [[[114.6094, 22.4121], [114.5215, 22.1484], [114.3457, 22.1484], [113.9063, 22.1484], [113.8184, 22.1924], [113.9063, 22.4121], [114.1699, 22.5439], [114.3457, 22.5439], [114.4336, 22.5439], [114.4336, 22.4121], [114.6094, 22.4121]]] } }, { type: 'Feature', id: 'ao_men', properties: { name: '澳门', cp: [113.5547, 22.1484], childNum: 1 }, geometry: { type: 'Polygon', coordinates: [[[113.5986, 22.1649], [113.6096, 22.1265], [113.5547, 22.11], [113.5437, 22.2034], [113.5767, 22.2034], [113.5986, 22.1649]]] } }] };

  var geoGpsMap = [116.4551, 40.2539];
  var geoCoordMap = {
    江苏: [118.8062, 31.9208],
    黑龙江: [127.9688, 45.368],
    内蒙古: [110.3467, 41.4899],
    吉林: [125.8154, 44.2584],
    北京: [116.4551, 40.2539],
    辽宁: [123.1238, 42.1216],
    河北: [114.4995, 38.1006],
    天津: [117.4219, 39.4189],
    山西: [112.3352, 37.9413],
    陕西: [109.1162, 34.2004],
    甘肃: [103.5901, 36.3043],
    宁夏: [106.3586, 38.1775],
    青海: [101.4038, 36.8207],
    新疆: [87.9236, 43.5883],
    四川: [103.9526, 30.7617],
    重庆: [108.384366, 30.439702],
    山东: [117.1582, 36.8701],
    河南: [113.4668, 34.6234],
    安徽: [117.29, 32.0581],
    湖北: [114.3896, 30.6628],
    浙江: [119.5313, 29.8773],
    福建: [119.4543, 25.9222],
    江西: [116.0046, 28.6633],
    湖南: [113.0823, 28.2568],
    贵州: [106.6992, 26.7682],
    云南: [102.9199, 25.4663],
    广东: [113.12244, 23.009505],
    广西: [108.479, 23.1152],
    海南: [110.3893, 19.8516],
    上海: [121.4648, 31.2891],
    西藏: [91.141017, 29.668461]
  };
  var data = [{
        name: '山西省',
        value: 123321
      },{
        name: '北京市',
        value: 999999111
      },{
        name: '辽宁省',
        value: 123
      },{
        name: '河北省',
        value: 3211
      },{
        name: '山东省',
        value: 998231
      },{
        name: '广西省',
        value: 3122222222
      },{
        name: '云南省',
        value: 312
      },{
        name: '浙江省',
        value: 321
      },{
        name: '上海市',
        value: 312
      },{
        name: '江苏省',
        value: 3112
      },{
        name: '湖北省',
        value: 3121
      },{
        name: '湖南省',
        value: 321321
      },{
        name: '西藏',
        valie: 321321
      },{
        name: '内蒙古',
        value: 321
      },{
        name: '黑龙江省',
        value: 321
      },{
        name: '吉林省',
        value: 44412
      },{
        name: '天津市',
        value: 312
      },{
        name: '广州省',
        value: 321
      },{
        name: '重庆市',
        value: 312
      }];
  var mapData = [];
  for (var key in geoCoordMap) {
    if (name.includes(key)) {
      geoGpsMap = geoCoordMap[key];
    }
    const keys = key;
    const filters = data.filter(item => {
      return item.name.includes(keys);
    })[0];

    mapData.push({
      name: key,
      value: filters ? filters.value : 0
    });
  }
  mapData.sort((a, b) => {
    return a.value - b.value;
  });
  const colors = ['rgb(209,211,187)', 'rgb(180,198,155)', 'rgb(83,156,158)', 'rgb(58,127,174)', 'rgb(38,88,146)', 'rgb(31,53,117)', 'rgb(26,50,114)', 'rgb(29,73,188)', 'rgb(11,28,77)', 'rgb(10,22,57)'];

  echarts.registerMap('china', geoJson);

  var convertData = function (data) {
    var res = [];
    for (var i = 0; i < data.length; i++) {
      var geoCoord = geoCoordMap[data[i].name];
      if (geoCoord) {
        res.push({
          name: data[i].name,
          value: geoCoord.concat(data[i].value)
        });
      }
    }
    return res;
  };
  var convertToLineData = function (data, gps) {
    var res = [];
    for (var i = 0; i < data.length; i++) {
      var dataItem = data[i];
      var toCoord = geoCoordMap[dataItem.name];
      var fromCoord = gps;// gps:‘中心点’
      if (fromCoord && toCoord) {
        res.push({
          fromName: gps,
          toName: dataItem.name,
          coords: [
            fromCoord,
            toCoord
          ]
        });
      }
    }
    return res;
  };

  option = {
    backgroundColor: 'rgba(0,0,0,0)',
    series: [
      // 地图线的动画效果
      {
        name: '',
        type: 'lines',
        zlevel: 2,
        effect: {
          show: true,
          period: 6,
          // symbol: planePath,
          trailLength: 0,
          symbolSize: 4
        },
        lineStyle: {
          normal: {
            type: 'dotted',
            color: '#ABE2FF',
            width: 2,
            opacity: 1,
            curveness: 0.3
          }
        },
        tooltip: {
          show: false
        },
        data: convertToLineData(mapData, geoGpsMap)
      },
      // 地图点的动画效果
      {
        name: '供需占比',
        type: 'effectScatter',
        coordinateSystem: 'geo',
        data: convertData(mapData).map(item => {
          return {
            name: item.name,
            value: item.value.splice(0, 2)
          };
        }),
        symbolSize: 3,
        showEffectOn: 'render',
        rippleEffect: {
          scale: 5,
          brushType: 'stroke'
        },
        hoverAnimation: true,
        itemStyle: {
          normal: {
            color: '#fff',
            shadowBlur: 20,
            shadowColor: '#333'
          }
        }
      },
      // 地图?
      {
        type: 'map',
        mapType: 'china',
        top: '2%',
        // left: '30%',
        label: { // 地图上的文字
          normal: {
            show: true,
            textStyle: {
              color: '#1DE9B6'
            }
          }
        },
        itemStyle: {
          emphasis: { // 高亮时区域颜色
            areaColor: 'rgb(180,198,155)'
          }
        },
        data: convertData(mapData).map((item, index) => {
          const length = mapData.length;
          const percent = Math.floor(length / colors.length);

          let active = Math.floor(index / percent);

          if (active === colors.length) {
            active = colors.length - 1;
          }
          return {
            name: item.name,
            value: item.value[2],
            itemStyle: {
              areaColor: item.value[2] ? colors[active] : colors[0]
            }
          };
        })
        // geoIndex: 0,
        // zlevel: 1,
      }
    ],
    geo: {
      map: 'china',
      top: '2%',
      aspectScale: 0.75, // 长宽比
      // left: '30%',
      // zoom: 1.1,
      roam: false,
      itemStyle: {
        normal: {
          shadowColor: 'rgb(58,115,192)',
          shadowOffsetX: 4,
          shadowOffsetY: 6
        }
      },
      regions: [{
        name: '南海诸岛',
        itemStyle: {
          normal: {
            opacity: 0,
            label: {
              show: false
            }
          }
        }
      }]
    },
    tooltip: {
      trigger: 'item',
      backgroundColor: 'rgba(0,0,0,0)',
      padding: 0,
      formatter: function (params) {
        var name = params.name || params.seriesName;
        var value = params.data.value || 0;
        // 实际来源地**
        // 最终目的地规模**人
        var content = `<div class="info_box">
          <div class="info_box_marker"></div>
          <div class="info_box_box">
            <span class="name">${name}</span>
            <span class="value">${value}</span>
            <span class="company">人</span>
          </div>
        </div>`;
        return content;
      }
    }
  };
    
截图如下