text: import echarts from 'echarts';
  
  require('echarts/map/js/china.js');
  
  
  function EchartsScatterMapVis(slice, payload) {
      var div = d3.select(slice.selector);
      var html = '<div id="e_scatter_map" style="width:' + slice.width() + 'px;' + ''
          + 'px;height:' + slice.height() + 'px;"></div>';
      div.html(html);
  
      var myChart = echarts.init(document.getElementById('e_scatter_map'));
  
      var data = [
          {name: '海门', value: 9},
          {name: '鄂尔多斯', value: 12},
          {name: '招远', value: 12},
          {name: '舟山', value: 12},
          {name: '齐齐哈尔', value: 14},
          {name: '盐城', value: 15},
          {name: '赤峰', value: 16},
          {name: '青岛', value: 18},
          {name: '乳山', value: 18},
          {name: '金昌', value: 19},
          {name: '泉州', value: 21},
          {name: '莱西', value: 21},
          {name: '日照', value: 21},
          {name: '胶南', value: 22},
          {name: '南通', value: 23},
          {name: '拉萨', value: 24},
          {name: '云浮', value: 24},
          {name: '梅州', value: 25},
          {name: '文登', value: 25},
          {name: '上海', value: 25},
          {name: '攀枝花', value: 25},
          {name: '威海', value: 25},
          {name: '承德', value: 25},
          {name: '厦门', value: 26},
          {name: '汕尾', value: 26},
          {name: '潮州', value: 26},
          {name: '丹东', value: 27},
          {name: '太仓', value: 27},
          {name: '曲靖', value: 27},
          {name: '烟台', value: 28},
          {name: '福州', value: 29},
          {name: '瓦房店', value: 30},
          {name: '即墨', value: 30},
          {name: '抚顺', value: 31},
          {name: '玉溪', value: 31},
          {name: '张家口', value: 31},
          {name: '阳泉', value: 31},
          {name: '莱州', value: 32},
          {name: '湖州', value: 32},
          {name: '汕头', value: 32},
          {name: '昆山', value: 33},
          {name: '宁波', value: 33},
          {name: '湛江', value: 33},
          {name: '揭阳', value: 34},
          {name: '荣成', value: 34},
          {name: '连云港', value: 35},
          {name: '葫芦岛', value: 35},
          {name: '常熟', value: 36},
          {name: '东莞', value: 36},
          {name: '河源', value: 36},
          {name: '淮安', value: 36},
          {name: '泰州', value: 36},
          {name: '南宁', value: 37},
          {name: '营口', value: 37},
          {name: '惠州', value: 37},
          {name: '江阴', value: 37},
          {name: '蓬莱', value: 37},
          {name: '韶关', value: 38},
          {name: '嘉峪关', value: 38},
          {name: '广州', value: 38},
          {name: '延安', value: 38},
          {name: '太原', value: 39},
          {name: '清远', value: 39},
          {name: '中山', value: 39},
          {name: '昆明', value: 39},
          {name: '寿光', value: 40},
          {name: '盘锦', value: 40},
          {name: '长治', value: 41},
          {name: '深圳', value: 41},
          {name: '珠海', value: 42},
          {name: '宿迁', value: 43},
          {name: '咸阳', value: 43},
          {name: '铜川', value: 44},
          {name: '平度', value: 44},
          {name: '佛山', value: 44},
          {name: '海口', value: 44},
          {name: '江门', value: 45},
          {name: '章丘', value: 45},
          {name: '肇庆', value: 46},
          {name: '大连', value: 47},
          {name: '临汾', value: 47},
          {name: '吴江', value: 47},
          {name: '石嘴山', value: 49},
          {name: '沈阳', value: 50},
          {name: '苏州', value: 50},
          {name: '茂名', value: 50},
          {name: '嘉兴', value: 51},
          {name: '长春', value: 51},
          {name: '胶州', value: 52},
          {name: '银川', value: 52},
          {name: '张家港', value: 52},
          {name: '三门峡', value: 53},
          {name: '锦州', value: 54},
          {name: '南昌', value: 54},
          {name: '柳州', value: 54},
          {name: '三亚', value: 54},
          {name: '自贡', value: 56},
          {name: '吉林', value: 56},
          {name: '阳江', value: 57},
          {name: '泸州', value: 57},
          {name: '西宁', value: 57},
          {name: '宜宾', value: 58},
          {name: '呼和浩特', value: 58},
          {name: '成都', value: 58},
          {name: '大同', value: 58},
          {name: '镇江', value: 59},
          {name: '桂林', value: 59},
          {name: '张家界', value: 59},
          {name: '宜兴', value: 59},
          {name: '北海', value: 60},
          {name: '西安', value: 61},
          {name: '金坛', value: 62},
          {name: '东营', value: 62},
          {name: '牡丹江', value: 63},
          {name: '遵义', value: 63},
          {name: '绍兴', value: 63},
          {name: '扬州', value: 64},
          {name: '常州', value: 64},
          {name: '潍坊', value: 65},
          {name: '重庆', value: 66},
          {name: '台州', value: 67},
          {name: '南京', value: 67},
          {name: '滨州', value: 70},
          {name: '贵阳', value: 71},
          {name: '无锡', value: 71},
          {name: '本溪', value: 71},
          {name: '克拉玛依', value: 72},
          {name: '渭南', value: 72},
          {name: '马鞍山', value: 72},
          {name: '宝鸡', value: 72},
          {name: '焦作', value: 75},
          {name: '句容', value: 75},
          {name: '北京', value: 79},
          {name: '徐州', value: 79},
          {name: '衡水', value: 80},
          {name: '包头', value: 80},
          {name: '绵阳', value: 80},
          {name: '乌鲁木齐', value: 84},
          {name: '枣庄', value: 84},
          {name: '杭州', value: 84},
          {name: '淄博', value: 85},
          {name: '鞍山', value: 86},
          {name: '溧阳', value: 86},
          {name: '库尔勒', value: 86},
          {name: '安阳', value: 90},
          {name: '开封', value: 90},
          {name: '济南', value: 92},
          {name: '德阳', value: 93},
          {name: '温州', value: 95},
          {name: '九江', value: 96},
          {name: '邯郸', value: 98},
          {name: '临安', value: 99},
          {name: '兰州', value: 99},
          {name: '沧州', value: 100},
          {name: '临沂', value: 103},
          {name: '南充', value: 104},
          {name: '天津', value: 105},
          {name: '富阳', value: 106},
          {name: '泰安', value: 112},
          {name: '诸暨', value: 112},
          {name: '郑州', value: 113},
          {name: '哈尔滨', value: 114},
          {name: '聊城', value: 116},
          {name: '芜湖', value: 117},
          {name: '唐山', value: 119},
          {name: '平顶山', value: 119},
          {name: '邢台', value: 119},
          {name: '德州', value: 120},
          {name: '济宁', value: 120},
          {name: '荆州', value: 127},
          {name: '宜昌', value: 130},
          {name: '义乌', value: 132},
          {name: '丽水', value: 133},
          {name: '洛阳', value: 134},
          {name: '秦皇岛', value: 136},
          {name: '株洲', value: 143},
          {name: '石家庄', value: 147},
          {name: '莱芜', value: 148},
          {name: '常德', value: 152},
          {name: '保定', value: 153},
          {name: '湘潭', value: 154},
          {name: '金华', value: 157},
          {name: '岳阳', value: 169},
          {name: '长沙', value: 175},
          {name: '衢州', value: 177},
          {name: '廊坊', value: 193},
          {name: '菏泽', value: 194},
          {name: '合肥', value: 229},
          {name: '武汉', value: 273},
          {name: '大庆', value: 279}
      ];
      var geoCoordMap = {
          '海门': [121.15, 31.89],
          '鄂尔多斯': [109.781327, 39.608266],
          '招远': [120.38, 37.35],
          '舟山': [122.207216, 29.985295],
          '齐齐哈尔': [123.97, 47.33],
          '盐城': [120.13, 33.38],
          '赤峰': [118.87, 42.28],
          '青岛': [120.33, 36.07],
          '乳山': [121.52, 36.89],
          '金昌': [102.188043, 38.520089],
          '泉州': [118.58, 24.93],
          '莱西': [120.53, 36.86],
          '日照': [119.46, 35.42],
          '胶南': [119.97, 35.88],
          '南通': [121.05, 32.08],
          '拉萨': [91.11, 29.97],
          '云浮': [112.02, 22.93],
          '梅州': [116.1, 24.55],
          '文登': [122.05, 37.2],
          '上海': [121.48, 31.22],
          '攀枝花': [101.718637, 26.582347],
          '威海': [122.1, 37.5],
          '承德': [117.93, 40.97],
          '厦门': [118.1, 24.46],
          '汕尾': [115.375279, 22.786211],
          '潮州': [116.63, 23.68],
          '丹东': [124.37, 40.13],
          '太仓': [121.1, 31.45],
          '曲靖': [103.79, 25.51],
          '烟台': [121.39, 37.52],
          '福州': [119.3, 26.08],
          '瓦房店': [121.979603, 39.627114],
          '即墨': [120.45, 36.38],
          '抚顺': [123.97, 41.97],
          '玉溪': [102.52, 24.35],
          '张家口': [114.87, 40.82],
          '阳泉': [113.57, 37.85],
          '莱州': [119.942327, 37.177017],
          '湖州': [120.1, 30.86],
          '汕头': [116.69, 23.39],
          '昆山': [120.95, 31.39],
          '宁波': [121.56, 29.86],
          '湛江': [110.359377, 21.270708],
          '揭阳': [116.35, 23.55],
          '荣成': [122.41, 37.16],
          '连云港': [119.16, 34.59],
          '葫芦岛': [120.836932, 40.711052],
          '常熟': [120.74, 31.64],
          '东莞': [113.75, 23.04],
          '河源': [114.68, 23.73],
          '淮安': [119.15, 33.5],
          '泰州': [119.9, 32.49],
          '南宁': [108.33, 22.84],
          '营口': [122.18, 40.65],
          '惠州': [114.4, 23.09],
          '江阴': [120.26, 31.91],
          '蓬莱': [120.75, 37.8],
          '韶关': [113.62, 24.84],
          '嘉峪关': [98.289152, 39.77313],
          '广州': [113.23, 23.16],
          '延安': [109.47, 36.6],
          '太原': [112.53, 37.87],
          '清远': [113.01, 23.7],
          '中山': [113.38, 22.52],
          '昆明': [102.73, 25.04],
          '寿光': [118.73, 36.86],
          '盘锦': [122.070714, 41.119997],
          '长治': [113.08, 36.18],
          '深圳': [114.07, 22.62],
          '珠海': [113.52, 22.3],
          '宿迁': [118.3, 33.96],
          '咸阳': [108.72, 34.36],
          '铜川': [109.11, 35.09],
          '平度': [119.97, 36.77],
          '佛山': [113.11, 23.05],
          '海口': [110.35, 20.02],
          '江门': [113.06, 22.61],
          '章丘': [117.53, 36.72],
          '肇庆': [112.44, 23.05],
          '大连': [121.62, 38.92],
          '临汾': [111.5, 36.08],
          '吴江': [120.63, 31.16],
          '石嘴山': [106.39, 39.04],
          '沈阳': [123.38, 41.8],
          '苏州': [120.62, 31.32],
          '茂名': [110.88, 21.68],
          '嘉兴': [120.76, 30.77],
          '长春': [125.35, 43.88],
          '胶州': [120.03336, 36.264622],
          '银川': [106.27, 38.47],
          '张家港': [120.555821, 31.875428],
          '三门峡': [111.19, 34.76],
          '锦州': [121.15, 41.13],
          '南昌': [115.89, 28.68],
          '柳州': [109.4, 24.33],
          '三亚': [109.511909, 18.252847],
          '自贡': [104.778442, 29.33903],
          '吉林': [126.57, 43.87],
          '阳江': [111.95, 21.85],
          '泸州': [105.39, 28.91],
          '西宁': [101.74, 36.56],
          '宜宾': [104.56, 29.77],
          '呼和浩特': [111.65, 40.82],
          '成都': [104.06, 30.67],
          '大同': [113.3, 40.12],
          '镇江': [119.44, 32.2],
          '桂林': [110.28, 25.29],
          '张家界': [110.479191, 29.117096],
          '宜兴': [119.82, 31.36],
          '北海': [109.12, 21.49],
          '西安': [108.95, 34.27],
          '金坛': [119.56, 31.74],
          '东营': [118.49, 37.46],
          '牡丹江': [129.58, 44.6],
          '遵义': [106.9, 27.7],
          '绍兴': [120.58, 30.01],
          '扬州': [119.42, 32.39],
          '常州': [119.95, 31.79],
          '潍坊': [119.1, 36.62],
          '重庆': [106.54, 29.59],
          '台州': [121.420757, 28.656386],
          '南京': [118.78, 32.04],
          '滨州': [118.03, 37.36],
          '贵阳': [106.71, 26.57],
          '无锡': [120.29, 31.59],
          '本溪': [123.73, 41.3],
          '克拉玛依': [84.77, 45.59],
          '渭南': [109.5, 34.52],
          '马鞍山': [118.48, 31.56],
          '宝鸡': [107.15, 34.38],
          '焦作': [113.21, 35.24],
          '句容': [119.16, 31.95],
          '北京': [116.46, 39.92],
          '徐州': [117.2, 34.26],
          '衡水': [115.72, 37.72],
          '包头': [110, 40.58],
          '绵阳': [104.73, 31.48],
          '乌鲁木齐': [87.68, 43.77],
          '枣庄': [117.57, 34.86],
          '杭州': [120.19, 30.26],
          '淄博': [118.05, 36.78],
          '鞍山': [122.85, 41.12],
          '溧阳': [119.48, 31.43],
          '库尔勒': [86.06, 41.68],
          '安阳': [114.35, 36.1],
          '开封': [114.35, 34.79],
          '济南': [117, 36.65],
          '德阳': [104.37, 31.13],
          '温州': [120.65, 28.01],
          '九江': [115.97, 29.71],
          '邯郸': [114.47, 36.6],
          '临安': [119.72, 30.23],
          '兰州': [103.73, 36.03],
          '沧州': [116.83, 38.33],
          '临沂': [118.35, 35.05],
          '南充': [106.110698, 30.837793],
          '天津': [117.2, 39.13],
          '富阳': [119.95, 30.07],
          '泰安': [117.13, 36.18],
          '诸暨': [120.23, 29.71],
          '郑州': [113.65, 34.76],
          '哈尔滨': [126.63, 45.75],
          '聊城': [115.97, 36.45],
          '芜湖': [118.38, 31.33],
          '唐山': [118.02, 39.63],
          '平顶山': [113.29, 33.75],
          '邢台': [114.48, 37.05],
          '德州': [116.29, 37.45],
          '济宁': [116.59, 35.38],
          '荆州': [112.239741, 30.335165],
          '宜昌': [111.3, 30.7],
          '义乌': [120.06, 29.32],
          '丽水': [119.92, 28.45],
          '洛阳': [112.44, 34.7],
          '秦皇岛': [119.57, 39.95],
          '株洲': [113.16, 27.83],
          '石家庄': [114.48, 38.03],
          '莱芜': [117.67, 36.19],
          '常德': [111.69, 29.05],
          '保定': [115.48, 38.85],
          '湘潭': [112.91, 27.87],
          '金华': [119.64, 29.12],
          '岳阳': [113.09, 29.37],
          '长沙': [113, 28.21],
          '衢州': [118.88, 28.97],
          '廊坊': [116.7, 39.53],
          '菏泽': [115.480656, 35.23375],
          '合肥': [117.27, 31.86],
          '武汉': [114.31, 30.52],
          '大庆': [125.03, 46.58]
      };
  
      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 option = {
          title: {
              text: '全国主要城市空气质量 - 百度地图',
              subtext: 'data from PM25.in',
              sublink: 'http://www.pm25.in',
              left: 'center'
          },
          tooltip: {
              trigger: 'item'
          },
          geo: {
              map: 'china',
              label: {
                  emphasis: {
                      show: false
                  }
              },
              roam: true,
              itemStyle: {
                  normal: {
                      areaColor: '#323c48',
                      borderColor: '#404a59'
                  },
                  emphasis: {
                      areaColor: '#2a333d'
                  }
              }
          },
          series: [
              {
                  name: 'pm2.5',
                  type: 'scatter',
                  coordinateSystem: 'bmap',
                  data: convertData(data),
                  symbolSize: function (val) {
                      return val[2] / 10;
                  },
                  label: {
                      normal: {
                          formatter: '{b}',
                          position: 'right',
                          show: false
                      },
                      emphasis: {
                          show: true
                      }
                  },
                  itemStyle: {
                      normal: {
                          color: 'purple'
                      }
                  }
              },
              {
                  name: 'Top 5',
                  type: 'effectScatter',
                  coordinateSystem: 'bmap',
                  data: convertData(data.sort(function (a, b) {
                      return b.value - a.value;
                  }).slice(0, 6)),
                  symbolSize: function (val) {
                      return val[2] / 10;
                  },
                  showEffectOn: 'render',
                  rippleEffect: {
                      brushType: 'stroke'
                  },
                  hoverAnimation: true,
                  label: {
                      normal: {
                          formatter: '{b}',
                          position: 'right',
                          show: true
                      }
                  },
                  itemStyle: {
                      normal: {
                          color: 'purple',
                          shadowBlur: 10,
                          shadowColor: '#333'
                      }
                  },
                  zlevel: 1
              }
          ]
      };
  
      myChart.setOption(option);
  
  }
  
  module.exports = EchartsScatterMapVis;