vue + echarts实现中国省份地图点击联动

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vue + echarts实现中国省份地图点击联动

JYeontu   2022-05-28 我要评论

引入echarts

npm下载

npm install echarts

cdn引入

<script
  type="text/javascript"
  src="https://cdn.jsdelivr.net/npm/echarts/dist/echarts.min.js"
></script>

引入中国地图china.js

<script
  type="text/javascript"
  src="https://cdn.jsdelivr.net/npm/echarts/map/js/china.js"
></script>

配置中国地图

定义一个div来作为地图的载体

render: function(createElement) {
    return createElement("div", {
      attrs: {
        id: "main",
      },
      style: {
        height: "450px",
        width:'600px',
        margin: 'auto'
      },
    });
},

设置各省份的值

定义省份数据

data() {
    return {
      dataList: [
        { name: "南海诸岛" },
        { ename: "beijing", name: "北京"},
        { ename: "tianjin", name: "天津" },
        { ename: "shanghai", name: "上海" },
        { ename: "chongqing", name: "重庆" },
        { ename: "hebei", name: "河北" },
        { ename: "henan", name: "河南"},
        { ename: "yunnan", name: "云南" },
        { ename: "liaoning", name: "辽宁" },
        { ename: "heilongjiang", name: "黑龙江" },
        { ename: "hunan", name: "湖南"},
        { ename: "anhui", name: "安徽" },
        { ename: "shandong", name: "山东" },
        { ename: "xinjiang", name: "新疆" },
        { ename: "jiangsu", name: "江苏" },
        { ename: "zhejiang", name: "浙江" },
        { ename: "jiangxi", name: "江西" },
        { ename: "hubei", name: "湖北" },
        { ename: "guangxi", name: "广西"},
        { ename: "gansu", name: "甘肃" },
        { ename: "shanxi", name: "山西" },
        { ename: "neimenggu", name: "内蒙古" },
        { ename: "shanxi1", name: "陕西" },
        { ename: "jilin", name: "吉林" },
        { ename: "fujian", name: "福建" },
        { ename: "guizhou", name: "贵州" },
        { ename: "guangdong", name: "广东" },
        { ename: "qinghai", name: "青海" },
        { ename: "xizang", name: "西藏" },
        { ename: "sichuan", name: "四川" },
        { ename: "ningxia", name: "宁夏" },
        { ename: "hainan", name: "海南" },
        { name: "台湾"},
        { ename: "xianggang", name: "香港" },
        { ename: "aomen", name: "澳门" },
      ],
    };
  },

随机给各省份赋值

let dataList = this.dataList;
for(let i = 0; i < dataList.length; i++){
    dataList[i].value = Math.ceil(Math.random() * 1000 - 1);
}

鼠标悬浮展示

option中的tooltip可以设置鼠标悬浮在省份上的数据显示

// 鼠标悬浮提示框
series: [
  {
    name: "省份",
    type: "map",
    geoIndex: 0,
    data: this.dataList,
  },
],
tooltip: {
  //数据格式化
  formatter: function(params, callback) {
    return (
      params.seriesName + "<br />" + params.name + ":" + params.value
    );
  },
},

如下图为鼠标悬浮在广东上的数据提示

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