echarts在地图上绘制散点图(任意点)
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2023-08-17 22:57:10
项目需求:在省份地图上绘制散点图,散点位置不一定是哪个城市或哪个区县,即任意点 通过查询官网文档,找到一个与需求类似的Demo:https://www.echartsjs.com/gallery/editor.html?c=scatter-map,更改代码,将中国地图替换为省份地图,省份地图的js代 ......
项目需求:在省份地图上绘制散点图,散点位置不一定是哪个城市或哪个区县,即任意点
通过查询官网文档,找到一个与需求类似的demo:,更改代码,将中国地图替换为省份地图,省份地图的js代码可以从网上下载,官网现在不提供下载了。
index.html,一个盒子
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="x-ua-compatible" content="ie=edge"> <title>mapscatter demo</title> </head> <body> <div id="echart" style="width: 1000px; height: 800px;"></div> <script src="./echarts.min.js"></script> <script src="./gansu.js"></script> <script src="./main.js"></script> </body> </html>
main.js
var dom = document.getelementbyid("container"); var mychart = echarts.init(dom); option = null; // 散点在地图上的坐标 var geocoordmap = { "*基地1": [94.12, 39.66], "*基地2": [97.20, 39.55], "*基地3": [95.28, 40.29], "省级基地1": [98.36, 40.19], "省级基地2": [97.88, 39.49], "省级基地3": [95.77, 40.59], "市级基地1": [102.66, 38.89], "市级基地2": [101.23, 37.79], "市级基地3": [99.40, 39.69] }; // 将坐标与值对应并反映在地图上 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 = { tooltip: { trigger: 'item', formatter: function (params) { return params.name; } }, visualmap: { type: 'piecewise', textstyle: { color: '#fff' }, pieces: [ {min: 300, label: '*基地', color: '#e3bf4c'}, {min: 200, max: 300, label: '省级基地', color: '#be4f51'}, {min: 100, max: 200, label: '市级基地', color: '#60c2cc'} ], color: ['#e3bf4c', '#be4f51', '#60c2cc'] }, geo: { map: '甘肃', label: { emphasis: { show: false } }, itemstyle: { normal: { areacolor: '#323c48', bordercolor: '#111' }, emphasis: { areacolor: '#2a333d' } } }, series: [ { type: 'effectscatter', coordinatesystem: 'geo', data: convertdata([ {name: "*基地1", value: 110}, {name: "*基地2", value: 110}, {name: "*基地3", value: 110}, {name: "省级基地1", value: 210}, {name: "省级基地2", value: 210}, {name: "省级基地3", value: 210}, {name: "市级基地1", value: 310}, {name: "市级基地2", value: 310}, {name: "市级基地3", value: 310} ]), symbolsize: 12, label: { normal: { show: false }, emphasis: { show: false } }, itemstyle: { emphasis: { bordercolor: '#fff', borderwidth: 1 } } } ] }; if (option && typeof option === "object") { mychart.setoption(option, true); }
最终效果
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