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    "鄂尔多斯":[109.781327,39.608266],
    "招远":[120.38,37.35],
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    "乳山":[121.52,36.89],
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    "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],
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    "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],
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    "即墨":[120.45,36.38],
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    "阳泉":[113.57,37.85],
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    "江阴":[120.26,31.91],
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    "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;
};

option = {
    backgroundColor: '#404a59',
    title: {
        text: '全国主要城市空气质量',
        subtext: 'data from PM25.in',
        sublink: 'http://www.pm25.in',
        x:'center',
        textStyle: {
            color: '#fff'
        }
    },
    tooltip: {
        trigger: 'item',
        formatter: function (params) {
            return params.name + ' : ' + params.value[2];
        }
    },
    legend: {
        orient: 'vertical',
        top: 'bottom',
        left: 'right',
        data:['pm2.5'],
        textStyle: {
            color: '#fff'
        }
    },
    visualMap: {
        min: 0,
        max: 200,
        calculable: true,
        inRange: {
            color: ['#50a3ba', '#eac736', '#d94e5d']
        },
        textStyle: {
            color: '#fff'
        }
    },
    geo: {
        map: 'china',
        itemStyle: {
            areaColor: '#323c48',
            borderColor: '#111'
        },
        emphasis: {
            itemStyle: {
                areaColor: '#2a333d'
            },
            label: {
                show: false
            }
        }
    },
    series: [
        {
            name: 'pm2.5',
            type: 'scatter',
            coordinateSystem: 'geo',
            data: convertData([
                {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}
            ]),
            symbolSize: 12,
            emphasis: {
                itemStyle: {
                    borderColor: '#fff',
                    borderWidth: 1
                }
            }
        }
    ]
}