使用echarts完成模拟飞机航线

效果如下：

具体操作：

引入china.js:

由于模拟中国飞机航线，所以需要引入中国地图

npm install echarts@4

import 'echarts/map/js/china'

var chartDom = document.getElementById('box4');
    var myChart = echarts.init(chartDom);
    var geoCoordMap = {
      '上海': [121.4648, 31.2891],
      '东莞': [113.8953, 22.901],
      '东营': [118.7073, 37.5513],
      '中山': [113.4229, 22.478],
      '临汾': [111.4783, 36.1615],
      '临沂': [118.3118, 35.2936],
      '丹东': [124.541, 40.4242],
      '丽水': [119.5642, 28.1854],
      '乌鲁木齐': [87.9236, 43.5883],
      '佛山': [112.8955, 23.1097],
      '保定': [115.0488, 39.0948],
      '兰州': [103.5901, 36.3043],
      '包头': [110.3467, 41.4899],
      '北京': [116.4551, 40.2539],
      '北海': [109.314, 21.6211],
      '南京': [118.8062, 31.9208],
      '南宁': [108.479, 23.1152],
      '南昌': [116.0046, 28.6633],
      '南通': [121.1023, 32.1625],
      '厦门': [118.1689, 24.6478],
      '台州': [121.1353, 28.6688],
      '合肥': [117.29, 32.0581],
      '呼和浩特': [111.4124, 40.4901],
      '咸阳': [108.4131, 34.8706],
      '哈尔滨': [127.9688, 45.368],
      '唐山': [118.4766, 39.6826],
      '嘉兴': [120.9155, 30.6354],
      '大同': [113.7854, 39.8035],
      '大连': [122.2229, 39.4409],
      '天津': [117.4219, 39.4189],
      '太原': [112.3352, 37.9413],
      '威海': [121.9482, 37.1393],
      '宁波': [121.5967, 29.6466],
      '宝鸡': [107.1826, 34.3433],
      '宿迁': [118.5535, 33.7775],
      '常州': [119.4543, 31.5582],
      '广州': [113.5107, 23.2196],
      '廊坊': [116.521, 39.0509],
      '延安': [109.1052, 36.4252],
      '张家口': [115.1477, 40.8527],
      '徐州': [117.5208, 34.3268],
      '德州': [116.6858, 3