vue+echarts ----中国地图下拉选择省份地图中的省份区域高亮显示以及飞线图的效果

1、父组件核心代码：【@/utils/area的详细数据】、【@/utils/china详细数据】

<template>
   <div class="center">
        <div class="digital">
           <el-select
                popper-class="selectz"
                v-model="areaValue"
                placeholder="请选择"
                :popper-append-to-body="false"
              >
                <el-option
                  v-for="item in areaListOptions"
                  :key="item.value"
                  :label="item.label"
                  :value="item.label"
                >
                </el-option>
              </el-select>
         </div>
         <!-- 中国地图 -->
         <ChinaMapAnimation :chartData="chartData" :provinceName="areaValue"></ChinaMapAnimation>
    
       </div>
  </template>

<script>
import "@/utils/china"; //在[https://datav.aliyun.com/portal/school/atlas/area_selector]中下载全国的json数据
import areaList from '@/utils/area'; //下拉框的数据 
import ChinaMapAnimation from "./components/chinaMapAnimation.vue";
export default {
  components: {
    ChinaMapAnimation,
  },
	data() {
	    return {
	      areaListOptions: areaList, //中国区域数据
	      areaValue: "全国",
	      }
	 },
  mounted() {
    this.areaListOptions.unshift({ value: "all", label: "全国" });
  },
 }
 </script>
 
<style scoped lang="scss">
.digital {
    // width: 350px;
    width: 100%;
    height: auto;
    position: absolute;
    // left: 28%;
    top: 2%;
    z-index: 99;
    text-align: center;
    ::v-deep .el-input__inner {
      background-color: transparent;
      border: none;
      font-size: 36px;
      line-height: 50px;
      height: 50px;
      caret-color: transparent;
      letter-spacing: 6px;
      text-align: center;
      // font-weight: bold;
      color: #6690ff;
      text-shadow: 2px 2px #eee;
      padding: 0;
    }
    ::v-deep .el-select .el-input .el-select__caret {
      font-size: 24px;
      color: #6690ff;
      text-shadow: 1px 1px #eee;
    }
    ::v-deep .el-cascader {
      .el-input__icon:before {
        content: "\e78f";
      }
    }

    ::v-deep .el-select {
      .el-select__caret:before {
        content: "\e78f";
      }
    }
  ::v-deep .el-input__suffix {
    left: 0;
    top: 30px;
  }
  ::v-deep .el-select-dropdown__item {
    color: #eee;
  }
  ::v-deep .el-select-dropdown__item.hover {
    background-color: #5483d3;
    color: #eee;
  }
  ::v-deep .el-scrollbar__wrap {
    margin-bottom: -8px !important;
    margin-right: -6px !important;
  }
  ::v-deep .el-popper[x-placement^="bottom"] .popper__arrow::after {
    border-bottom-color: #5483d3;
    display: none;
  }
  ::v-deep .el-popper[x-placement^=bottom] .popper__arrow{
   display: none;
  }
  //
  ::v-deep .el-select-dropdown {
    background-color: transparent;
    border-color: #5483d3;
  }
</style>

2.地图子组件的全部代码

<template>
  <div
    class="centerMap"
    id="echartsMap"
    style="width: 100%; height: 600px"
  ></div>
</template>

<script>
// 引入echarts
import * as echarts from "echarts";

export default {
  props: {
    provinceName: {
      //父组件传入地图名称
      type: String,
      default: "北京市",
    },
  },
  components: {},
  data() {
    // 这里存放数据
    return {
      myChart: null,
    };
  },
  watch: {
    provinceName(newvalue, oldValue) {
      if (newvalue != oldValue) {
        this.init();
      }
    },
     immediate: false
  },
  mounted() {
    this.init();
  },
  beforeDestroy() {
    if (this.myChart) {
      this.myChart.dispose();
    }
  },
  // 方法集合
  methods: {
    init() {
      let chartDom = document.getElementById("echartsMap");
      const myChart = echarts.init(chartDom);
      this.myChart = myChart;
      const chinaGeoCoordMap = {
        黑龙江: [127.9688, 45.368],
        内蒙古: [110.3467, 41.4899],
        吉林: [125.8154, 44.2584],
        宜宾市: [104.630825, 28.760189],
        辽宁: [123.1238, 42.1216],
        河北: [114.4995, 38.1006],
        北京: [116.405285, 39.904989],
        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],
        西藏: [91.11, 29.97],
        四川: [103.9526, 30.7617],
        重庆: [108.384366, 30.439702],
        山东: [117.1582, 36.8701],
        河南: [113.4668, 34.6234],
        江苏: [118.8062, 31.9208],
        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],
      };
      // 散点
      const chinaDatas = [];
      const mapObject = { name: "", value: null };
      // 飞线
      const lineObject = { coords: [[117.4219, 39.4189]] };
      const linesCoord = [];
      for (const key in chinaGeoCoordMap) {
        mapObject.name = key;
        mapObject.value = chinaGeoCoordMap[key];
        chinaDatas.push(JSON.parse(JSON.stringify(mapObject)));
        if (key !== "天津") {
          lineObject.coords[1] = chinaGeoCoordMap[key];
          linesCoord.push(JSON.parse(JSON.stringify(lineObject)));
        }
      }

      const option = {  
        geo: {
          map: "china",
          show: true,
          roam: false,
          layoutCenter: ["50%", "68%"], //地图位置
          layoutSize: "128%",
          label: {
            emphasis: {
              show: false,
            },
          },
          // 选中的地区域高亮颜色**********重点
          regions: [
            {
              name: this.provinceName,
              itemStyle: {
                areaColor: "#FFB800",
              },
            },
          ],
          // 地图的背景色
          itemStyle: {
            normal: {
              areaColor: "#09184F",
              borderColor: "#00ffff",
              shadowColor: "#6690FF",
              shadowBlur: 10,
            },
            emphasis: {
              areaColor: "#477BFF",
            },
          },
        },

        series: [
          {
            type: "effectScatter",
            coordinateSystem: "geo",
            // 要有对应的经纬度才显示，先经度再维度
            data: chinaDatas,
            showEffectOn: "render",
            rippleEffect: {
              scale: 4, // 波纹的最大缩放比例
              brushType: "stroke",
            },
            hoverAnimation: true,
            label: {
              normal: {
                show: true,
                formatter: "{b}",
                position: "right",
                fontWeight: 500,
                fontSize: 14,
              },
            },
            itemStyle: {
              normal: {
                color: "#00e3ff",
                shadowBlur: 10,
                shadowColor: "#333",
              },
            },
            emphasis: {
              itemStyle: {
                color: "#FFB800", // 高亮颜色
              },
            },
            zlevel: 1,
          },
          {
            type: "lines",
            coordinateSystem: "geo",
            zlevel: 1,
            effect: {
              show: true,
              period: 5,
              trailLength: 0,
              symbol: "arrow",
              color: "#01AAED",
              symbolSize: 8,
            },
            lineStyle: {
              normal: {
                width: 1.2,
                opacity: 0.6,
                curveness: 0.2,
                color: "#FFB800",
              },
            },
            data: linesCoord,
          },
      
        ],
      };
      myChart.setOption(option);

      // 省份高亮函数
      // if (this.provinceName) {
      //   myChart.dispatchAction({
      //     type: "downplay",
      //     seriesIndex: 0,
      //     name: this.provinceName,
      //   });
      //   myChart.dispatchAction({
      //   type: "highlight",
      //   seriesIndex: 0,
      //   dataIndex: myChart
      //     .getOption()
      //     .series[0].data.findIndex((item) => item.name === this.provinceName),
      //   name: this.provinceName,
      // });
      // }
    },
  },
};
</script>
<style lang="scss" scoped>
.centerMap {
  width: 100%;
  height: 600px;
  // position: absolute !important;
  margin: 0 auto;
  margin-top:-10px;

  ::v-deep canvas {
    width: 100% !important;
  }
}
</style>