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本次实验通过可视化工具Echarts来对全国主要城市的PM2.5的值进行直观的展示,使人们可以快速的发现信息的关键点,从而对各个城市的空气质量情况有直观的了解。
先看效果
上代码:
- <!DOCTYPE html>
- <html>
-
- <head>
- <meta charset="utf-8" />
- <!-- <meta charset="GB2312" /> -->
- <!-- 引入刚刚下载的 ECharts 文件 -->
- <script src="js/echarts/echarts.min.js"></script>
- <script type="text/javascript" src="js/echarts/china.js"></script>
- <script type="text/javascript" src="js/jquery.min.js"></script>
-
-
-
-
- </head>
-
- <body>
- <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
- <!-- //图形在网页的长宽 DOM -->
- <div id="main" style="width: 90%;height: 800px;"></div>
-
- <script type="text/javascript">
- // 基于准备好的dom,初始化echarts实例
- var myChart = echarts.init(document.getElementById('main'));
-
- <!-- Step 1:加载主要城市经纬度数据 -->
- var cityCoordData = null;
- // $.ajax(
- // {
- // url :'dtData.json',
- // async:false,
- // dataType:"json",
- // success:function(data){
- // cityCoordData = data;
- // }
- // }); //ajax_end
- cityCoordData = {
- 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]
- };
-
- <!-- Step 2: 加载主要城市PM2.5数据 -->
- var pmData = null;
- // $.ajax(
- // {
- // url : 'pmData.json',
- // async:false,
- // dataType:"json",
- // success:function(data){
- // pmData = data.pmData;
- // }
- // });//ajax_end
- pmData = [
- { 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 }
- ];
-
- <!-- Step 3: 对数据进行处理 -->
- var convertData = function getData(pmData){
- var res = [];
- for(var i=0;i<pmData.length;i++){
- var cityName = pmData[i].name;
- var cityCoord = cityCoordData[cityName];
- var cityValue = pmData[i].value;
-
- cityCoord.push(cityValue);
-
- res.push({
- name:cityName,
- value:cityCoord
- });
- }
- return res;
- };
-
- var option =
- {
- <!-- geo是地理坐标系组件 -->
- geo: {
- map:'china',
- roam: true,
- itemStyle:{
- normal:{
- areaColor: '#323c48',
- borderColor: '#404a59'
- },
- emphasis:{
- areaColor: '#2a333d'
- }
- }
- },
-
-
- <!-- Step 2:配置visualMap -->
- visualMap:{
- type: 'piecewise',
- splitNumber:6,
- min:0,
- max:360,
- textStyle:{
- color:'white'
- }
- },
- <!-- Step 1:优化option配置 -->
- backgroundColor: '#404a59',
- title:{
- text:'全国主要城市空气质量对比图-PM2.5',
- left:'center',
- textStyle:{
- color:'white',
- fontSize:22
- }
- },
- legend:{
- orient:'vertical',
- left:'right',
- bottom:'bottom',
- data:['PM2.5','Top5'],
- textStyle:{
- color:'white'
- }
- },
- tooltip:{
- trigger:'item',
- formatter:function(params){
- return "城市:"+params.name+"<br>PM2.5:"+params.value[2];
- }
- }
-
-
- };
-
- // 使用刚指定的配置项和数据显示图表。
- myChart.setOption(option);
-
-
-
-
-
- <!-- Step 4: 设置series -->
- var series = [
- {
- name:"PM2.5",
- type:'scatter',
- coordinateSystem:'geo',
- symbol:'circle',
- symbolSize: 100,
-
- <!-- Step 1:优化series -->
- symbolSize: function(val){
- // return val[2]/10;
- return val[2]/8;//圆点大小
- },
-
- data:convertData(pmData)
- },
-
- <!-- Step 1:绘制带特效的散点图 -->
- {
- name:'Top5',
- type:'effectScatter',
- coordinateSystem:'geo',
- data:convertData(pmData.sort(function(a,b){
- return b.value-a.value;
- }).slice(0,5)),
-
- showEffectOn: 'emphasis',
- rippleEffect: {
- brushType: 'stroke'
- },
-
- effectType:"ripple", //特效类型,目前只支持涟漪特效'ripple'。
- showEffectOn:"render", //配置何时显示特效。可选:'render' 绘制完成后显示特效。'emphasis' 高亮(hover)的时候显示特效。
- rippleEffect:{ //涟漪特效相关配置。
- period:4, //动画的时间。
- scale:2.5, //动画中波纹的最大缩放比例。
- brushType:'stroke', //波纹的绘制方式,可选 'stroke' 和 'fill'。
- },
-
- hoverAnimation: true,
- label: {
- normal: {
- formatter: '{b}',
- position: 'right',
- show: true,
- color:'yellow'
- }
- },
- itemStyle: {
- normal: {
- color: '#f4e925',
- shadowBlur: 10,
- shadowColor: '#333'
- }
- },
- zlevel: 1,
- symbolSize: function(val){
- // return val[2]/10;
- return val[2]/8;//top5圆点大小
- },
- }
-
-
- ];
-
-
-
-
- // 使用刚指定的配置项和数据显示图表。
-
- option.series = series;
- myChart.setOption(option);
-
-
-
-
- </script>
-
- </body>
-
- </html>
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