利用ECharts3来实现ECharts2实例中的模拟迁徙效果,即背景地图为百度地图。
来源:互联网 发布:淘宝服务.com 编辑:程序博客网 时间:2024/05/19 17:47
很多小伙伴都来要demo源码,现在我把demo放在我的GitHub上了。
https://github.com/lixinGiting/echarts3_map_demo
希望大家能给我个star鼓励一下。效果预览 :http://htmlpreview.github.io/?https://github.com/lixinGiting/echarts3_map_demo/blob/master/index.html
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工作需要,想通过ECharts3来制作类似于ECharts2实例中模拟迁徙地图的效果,本来认为很简单,后来发现并不好做,上网查找了相关问题,翻来覆去只有相关的问题,却没有一个合适的答案,后来费心尽力,终于做出一点成果,分享给大家。
在ECharts2中模拟迁徙地图为:点击打开链接
在ECharts3中模拟迁徙地图为:点击打开链接
发现有以下要注意的事项,首先与echarts2相比echarts3有很大的改动:第一点:ECharts2推荐模块化单文件引入;由于echarts依赖底层zrender,你需要同时下载zrender到本地。ECharts 3 开始不再强制使用 AMD 的方式按需引入,代码里也不再内置 AMD 加载器。因此引入方式简单了很多,只需要像普通的 JavaScript 库一样用 script 标签引入。第二点:ECharts3中因为地图精度的提高,不再内置地图数据增大代码体积,你可以在地图下载界面下载到需要的地图文件引入并注册到 ECharts 中。如果采用echarts3官方给的地图加载方式即<script src="echarts.js"></script><script src="map/js/china.js"></script><script>var chart = echarts.init(document.getElementById('main'));chart.setOption({ series: [{ type: 'map', map: 'china' }]});</script>那么会得到和echarts3官方实例一样的黑色背景的地图。echarts2中的模拟迁徙之所以能显示百度地图的背景,是因为它引入了百度地图。百度地图和echarts2的结合比较简单,官方也有很多百度地图的扩展实例。具体查看请点击重点是echart3和百度地图的结合需要引入百度开发者密钥,还要引入bmap文件,否则会报错。百度开发者密钥去百度地图API官网申请即可,很简单。<script src="echarts.js"></script><script src="bmap.js"></script><script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=0UqXGL98FSmi22w2Rl6HK56I"></script>完整的Demo代码:<html><head> <meta charset="utf-8"> <style type="text/css"> body { margin: 0; } #main { height: 100%; } </style></head><body><div id="main"></div><script src="echarts.js"></script><script src="bmap.js"></script><script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=0UqXGL98FSmi22w2Rl6HK56I"></script><script>var myChart = echarts.init(document.getElementById('main'));var option = { bmap: { center: [113.65,34.76], zoom: 5, roam: true, }, series: [{ type: 'map', coordinateSystem: 'bmap' }]};myChart.setOption(option);</script></body></html>值得注意的是series中的坐标系coordinateSystem: 'bmap'
然后我们就可以参考着echarts3中的模拟迁徙图补全代码,最终就可以得到以百度地图为背景的echarts模拟迁徙地图,和echrts2中的模拟迁徙实例非常类似。官方实例图:效果图:<html><head> <meta charset="utf-8"> <style type="text/css"> body { margin: 0; } #main { height: 100%; } </style></head><body><div id="main"></div><script src="echarts.js"></script><script src="bmap.js"></script><script src="china.js"></script><script src="world.js"></script><script src="http://libs.baidu.com/jquery/2.0.0/jquery.js"></script><script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=0UqXGL98FSmi22w2Rl6HK56I"></script><script>var myChart = echarts.init(document.getElementById('main'));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': [116.6858,37.2107], '惠州': [114.6204,23.1647], '成都': [103.9526,30.7617], '扬州': [119.4653,32.8162], '承德': [117.5757,41.4075], '拉萨': [91.1865,30.1465], '无锡': [120.3442,31.5527], '日照': [119.2786,35.5023], '昆明': [102.9199,25.4663], '杭州': [119.5313,29.8773], '枣庄': [117.323,34.8926], '柳州': [109.3799,24.9774], '株洲': [113.5327,27.0319], '武汉': [114.3896,30.6628], '汕头': [117.1692,23.3405], '江门': [112.6318,22.1484], '沈阳': [123.1238,42.1216], '沧州': [116.8286,38.2104], '河源': [114.917,23.9722], '泉州': [118.3228,25.1147], '泰安': [117.0264,36.0516], '泰州': [120.0586,32.5525], '济南': [117.1582,36.8701], '济宁': [116.8286,35.3375], '海口': [110.3893,19.8516], '淄博': [118.0371,36.6064], '淮安': [118.927,33.4039], '深圳': [114.5435,22.5439], '清远': [112.9175,24.3292], '温州': [120.498,27.8119], '渭南': [109.7864,35.0299], '湖州': [119.8608,30.7782], '湘潭': [112.5439,27.7075], '滨州': [117.8174,37.4963], '潍坊': [119.0918,36.524], '烟台': [120.7397,37.5128], '玉溪': [101.9312,23.8898], '珠海': [113.7305,22.1155], '盐城': [120.2234,33.5577], '盘锦': [121.9482,41.0449], '石家庄': [114.4995,38.1006], '福州': [119.4543,25.9222], '秦皇岛': [119.2126,40.0232], '绍兴': [120.564,29.7565], '聊城': [115.9167,36.4032], '肇庆': [112.1265,23.5822], '舟山': [122.2559,30.2234], '苏州': [120.6519,31.3989], '莱芜': [117.6526,36.2714], '菏泽': [115.6201,35.2057], '营口': [122.4316,40.4297], '葫芦岛': [120.1575,40.578], '衡水': [115.8838,37.7161], '衢州': [118.6853,28.8666], '西宁': [101.4038,36.8207], '西安': [109.1162,34.2004], '贵阳': [106.6992,26.7682], '连云港': [119.1248,34.552], '邢台': [114.8071,37.2821], '邯郸': [114.4775,36.535], '郑州': [113.4668,34.6234], '鄂尔多斯': [108.9734,39.2487], '重庆': [107.7539,30.1904], '金华': [120.0037,29.1028], '铜川': [109.0393,35.1947], '银川': [106.3586,38.1775], '镇江': [119.4763,31.9702], '长春': [125.8154,44.2584], '长沙': [113.0823,28.2568], '长治': [112.8625,36.4746], '阳泉': [113.4778,38.0951], '青岛': [120.4651,36.3373], '韶关': [113.7964,24.7028]};var BJData = [ [{name:'北京'}, {name:'上海',value:95}], [{name:'北京'}, {name:'广州',value:90}], [{name:'北京'}, {name:'大连',value:80}], [{name:'北京'}, {name:'南宁',value:70}], [{name:'北京'}, {name:'南昌',value:60}], [{name:'北京'}, {name:'拉萨',value:50}], [{name:'北京'}, {name:'长春',value:40}], [{name:'北京'}, {name:'包头',value:30}], [{name:'北京'}, {name:'重庆',value:20}], [{name:'北京'}, {name:'常州',value:10}]];var SHData = [ [{name:'上海'},{name:'包头',value:95}], [{name:'上海'},{name:'昆明',value:90}], [{name:'上海'},{name:'广州',value:80}], [{name:'上海'},{name:'郑州',value:70}], [{name:'上海'},{name:'长春',value:60}], [{name:'上海'},{name:'重庆',value:50}], [{name:'上海'},{name:'长沙',value:40}], [{name:'上海'},{name:'北京',value:30}], [{name:'上海'},{name:'丹东',value:20}], [{name:'上海'},{name:'大连',value:10}]];var GZData = [ [{name:'广州'},{name:'福州',value:95}], [{name:'广州'},{name:'太原',value:90}], [{name:'广州'},{name:'长春',value:80}], [{name:'广州'},{name:'重庆',value:70}], [{name:'广州'},{name:'西安',value:60}], [{name:'广州'},{name:'成都',value:50}], [{name:'广州'},{name:'常州',value:40}], [{name:'广州'},{name:'北京',value:30}], [{name:'广州'},{name:'北海',value:20}], [{name:'广州'},{name:'海口',value:10}]];var planePath = 'path://M1705.06,1318.313v-89.254l-319.9-221.799l0.073-208.063c0.521-84.662-26.629-121.796-63.961-121.491c-37.332-0.305-64.482,36.829-63.961,121.491l0.073,208.063l-319.9,221.799v89.254l330.343-157.288l12.238,241.308l-134.449,92.931l0.531,42.034l175.125-42.917l175.125,42.917l0.531-42.034l-134.449-92.931l12.238-241.308L1705.06,1318.313z';var convertData = function (data) { var res = []; for (var i = 0; i < data.length; i++) { var dataItem = data[i]; var fromCoord = geoCoordMap[dataItem[0].name]; var toCoord = geoCoordMap[dataItem[1].name]; if (fromCoord && toCoord) { res.push({ fromName: dataItem[0].name, toName: dataItem[1].name, coords: [fromCoord, toCoord] }); } } return res;};var color = ['#a6c84c', '#ffa022', '#46bee9'];var series = [];[['北京', BJData], ['上海', SHData], ['广州', GZData]].forEach(function (item, i) { series.push({ name: item[0] + ' Top10', type: 'lines', coordinateSystem: 'bmap', zlevel: 1, effect: { show: true, period: 6, trailLength: 0.7, color: '#fff', symbolSize: 3 }, lineStyle: { normal: { color: color[i], width: 0, curveness: 0.2 } }, data: convertData(item[1]) }, { name: item[0] + ' Top10', type: 'lines', coordinateSystem: 'bmap', zlevel: 2, effect: { show: true, period: 6, trailLength: 0, symbol: planePath, symbolSize: 15 }, lineStyle: { normal: { color: color[i], width: 1, opacity: 0.4, curveness: 0.2 } }, data: convertData(item[1]) }, { name: item[0] + ' Top10', type: 'effectScatter', coordinateSystem: 'bmap', zlevel: 2, rippleEffect: { brushType: 'stroke' }, label: { normal: { show: true, position: 'right', formatter: '{b}' } }, symbolSize: function (val) { return val[2] / 8; }, itemStyle: { normal: { color: color[i] } }, data: item[1].map(function (dataItem) { return { name: dataItem[1].name, value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value]) }; }) });});option = { backgroundColor: '#404a59', title : { text: '模拟迁徙', subtext: '数据纯属虚构', left: 'center', textStyle : { color: '#fff' } }, tooltip : { trigger: 'item' }, legend: { orient: 'vertical', top: 'bottom', left: 'right', data:['北京 Top10', '上海 Top10', '广州 Top10'], textStyle: { color: '#fff' }, selectedMode: 'single' }, dataRange: { min: 0, max: 100, x: 'right', calculable: true, color: ['#ff3333', 'orange', 'yellow', 'lime', 'aqua'], textStyle: { color: '#fff' } }, bmap: { center: [115.97, 29.71], zoom: 5, roam: true }, series: series};myChart.setOption(option);</script></body></html>
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