echarts笔记-GeoJSON河北数据下并裁剪为冀北地图并使用echarts加载

首先找个网站把河北的GeoJSON数据下载下来,我用的是这个,理论上任意一个都可以

DataV.GeoAtlas地理小工具系列

将json数据下载后,进行裁剪,仅保留冀北数据。

如下,我裁剪的数据:

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40.437626],[118.657176, 40.450574],[118.702795, 40.491411],[118.723491, 40.473746],[118.772954, 40.479765],[118.792112, 40.492382],[118.794867, 40.510753],[118.821328, 40.531964],[118.864, 40.527244],[118.886938, 40.542438],[118.919038, 40.53093],[118.966003, 40.536102],[118.952676, 40.558469],[118.983366, 40.56364],[118.998359, 40.578955],[119.013095, 40.577081],[119.063392, 40.606151],[119.086394, 40.588775],[119.105487, 40.603632],[119.158474, 40.614418]]]]}},{"type": "Feature","properties": {"adcode": 131000,"name": "廊坊市","center": [116.704441, 39.523927],"centroid": [116.540212, 39.111215],"childrenNum": 10,"level": "city","parent": {"adcode": 130000},"subFeatureIndex": 9,"acroutes": [100000, 130000]},"geometry": {"type": "MultiPolygon","coordinates": [[[[116.244678, 39.517354],[116.222766, 39.501995],[116.220843, 39.511644],[116.182144, 39.49635],[116.179901, 39.486568],[116.151325, 39.471005],[116.132104, 39.429423],[116.133001, 39.4055],[116.116791, 39.376243],[116.13582, 39.351842],[116.198226, 39.351315],[116.208734, 39.330195],[116.201109, 39.251911],[116.186116, 39.222457],[116.206555, 39.207429],[116.207837, 39.168526],[116.221804, 39.147813],[116.262426, 39.138114],[116.263131, 39.127292],[116.28184, 39.107623],[116.305354, 39.098116],[116.317592, 39.077911],[116.318617, 39.037416],[116.307148, 39.032196],[116.293757, 39.007344],[116.299588, 38.993658],[116.3215, 38.998088],[116.33534, 38.984004],[116.316182, 38.962708],[116.298755, 38.975076],[116.291386, 38.948683],[116.253007, 38.932074],[116.243653, 38.949345],[116.228083, 38.942199],[116.230262, 38.92453],[116.209503, 38.921618],[116.20002, 38.915727],[116.202198, 38.887258],[116.212194, 38.870238],[116.23212, 38.871894],[116.248907, 38.85964],[116.247497, 38.848907],[116.278764, 38.836451],[116.271973, 38.816634],[116.338287, 38.80689],[116.390313, 38.789784],[116.42299, 38.770419],[116.435804, 38.733199],[116.406331, 38.703596],[116.370836, 38.692508],[116.366863, 38.67305],[116.381984, 38.619165],[116.41921, 38.599288],[116.425425, 38.587187],[116.454834, 38.580337],[116.455475, 38.557656],[116.432152, 38.552533],[116.431127, 38.539558],[116.452655, 38.534501],[116.449772, 38.518262],[116.465726, 38.494096],[116.519482, 38.48817],[116.559399, 38.496759],[116.569715, 38.470988],[116.589897, 38.483908],[116.610593, 38.479646],[116.627315, 38.501087],[116.621228, 38.514335],[116.647114, 38.50648],[116.668257, 38.530042],[116.672678, 38.546545],[116.652431, 38.551202],[116.643333, 38.564773],[116.671653, 38.566503],[116.662234, 38.581268],[116.680303, 38.592706],[116.680559, 38.605936],[116.702792, 38.619098],[116.71503, 38.609327],[116.733739, 38.614047],[116.738224, 38.631327],[116.763212, 38.633853],[116.77404, 38.652258],[116.758855, 38.732071],[116.766351, 38.741959],[116.746297, 38.754233],[116.751294, 38.780168],[116.737327, 38.784479],[116.73848, 38.807022],[116.75123, 38.831282],[116.74604, 38.851491],[116.723103, 38.852551],[116.722334, 38.897058],[116.708046, 38.897058],[116.70811, 38.931876],[116.716183, 38.93889],[116.728613, 38.975341],[116.754626, 39.003245],[116.756612, 39.0503],[116.773015, 39.046865],[116.787303, 39.061927],[116.80268, 39.050895],[116.860473, 39.050564],[116.869891, 39.069919],[116.881488, 39.071702],[116.91109, 39.111055],[116.924096, 39.119372],[116.909232, 39.150782],[116.870084, 39.153685],[116.863164, 39.201365],[116.855796, 39.215669],[116.875594, 39.21646],[116.874569, 39.230036],[116.892637, 39.223973],[116.878733, 39.255336],[116.867969, 39.302552],[116.884243, 39.305383],[116.889626, 39.338157],[116.875786, 39.33921],[116.870724, 39.357499],[116.849196, 39.339473],[116.829206, 39.338881],[116.818121, 39.373547],[116.837599, 39.374073],[116.834139, 39.402674],[116.875914, 39.434548],[116.855475, 39.443352],[116.832473, 39.435468],[116.815751, 39.451761],[116.807421, 39.445586],[116.785124, 39.465883],[116.820748, 39.482431],[116.813957, 39.510266],[116.826194, 39.513088],[116.819595, 39.52851],[116.806204, 39.528838],[116.787687, 39.554555],[116.81165, 39.576983],[116.797875, 39.594358],[116.812355, 39.615922],[116.789994, 39.610548],[116.790699, 39.596062],[116.748667, 39.619919],[116.700742, 39.621033],[116.7026, 39.610417],[116.727075, 39.593047],[116.705099, 39.587999],[116.662363, 39.605239],[116.646537, 39.599143],[116.620524, 39.601699],[116.607773, 39.619723],[116.565934, 39.619788],[116.566575, 39.604387],[116.541779, 39.593505],[116.524416, 39.596521],[116.519354, 39.566491],[116.508462, 39.551078],[116.470916, 39.55462],[116.478861, 39.539204],[116.464573, 39.527657],[116.437534, 39.526541],[116.443813, 39.509872],[116.424656, 39.509741],[116.424079, 39.522735],[116.402679, 39.526869],[116.402807, 39.5144],[116.418761, 39.506393],[116.412354, 39.482103],[116.444134, 39.482169],[116.454706, 39.453338],[116.434395, 39.442761],[116.408958, 39.45025],[116.350461, 39.453009],[116.320027, 39.46851],[116.306443, 39.488997],[116.279277, 39.491295],[116.257941, 39.500551],[116.244678, 39.517354]]],[[[117.209793, 40.082253],[117.204347, 40.06982],[117.160073, 40.076199],[117.13925, 40.064025],[117.119515, 40.072424],[117.085621, 40.075158],[117.085173, 40.068583],[117.052048, 40.059402],[117.028533, 40.033939],[117.000662, 40.0299],[116.972086, 40.037],[116.960489, 40.051133],[116.928133, 40.05491],[116.867841, 40.041885],[116.857782, 40.051914],[116.822734, 40.046444],[116.819979, 40.028337],[116.781536, 40.034851],[116.770452, 40.011658],[116.775385, 39.99276],[116.757317, 39.961468],[116.780575, 39.94973],[116.784676, 39.891401],[116.804154, 39.877954],[116.827284, 39.87704],[116.866047, 39.843866],[116.885653, 39.844585],[116.907566, 39.834133],[116.902824, 39.848242],[116.92589, 39.835374],[116.928453, 39.813095],[116.952608, 39.789827],[116.949725, 39.778583],[116.924288, 39.781263],[116.920893, 39.769167],[116.901799, 39.763609],[116.916664, 39.731362],[116.88277, 39.718472],[116.893854, 39.695893],[116.912563, 39.689216],[116.91692, 39.706365],[116.950878, 39.706824],[116.944599, 39.695173],[116.963629, 39.643441],[116.974585, 39.636824],[117.004378, 39.644489],[117.015783, 39.654052],[117.057045, 39.644554],[117.127076, 39.61697],[117.152641, 39.623523],[117.157959, 39.636627],[117.177693, 39.645602],[117.159624, 39.666823],[117.170132, 39.673371],[117.169235, 39.717622],[117.153153, 39.722726],[117.161867, 39.747389],[117.205884, 39.763871],[117.18064, 39.78244],[117.178718, 39.795318],[117.15751, 39.796756],[117.156357, 39.817473],[117.195056, 39.82551],[117.192173, 39.833088],[117.252208, 39.834591],[117.259961, 39.843409],[117.247467, 39.861043],[117.227797, 39.852749],[117.166865, 39.868944],[117.149117, 39.896297],[117.158856, 39.909218],[117.137456, 39.921616],[117.156869, 39.938055],[117.151039, 39.944839],[117.175963, 39.959121],[117.178654, 39.977311],[117.198132, 39.99276],[117.187752, 40.026187],[117.1841, 40.062593],[117.222863, 40.065523],[117.209793, 40.082253]]]]}}]
}

最后使用echart进行加载:

代码如下:

<template><div id="main" style="width: 100%; height: 100%"></div>
</template><script>import echarts from 'echarts';// import 'echarts/map/js/province/jiangsu'import 'echarts/map/js/province/ningxia'
export default {name: 'HelloWorld',mounted(){this.drawLine();},methods: {drawLine(){const jbJson = require('../assets/jb.json')echarts.registerMap('jb', jbJson);let myChart = echarts.init(document.getElementById('main'));myChart.setOption({scaleLimit: { //所属组件的z分层,z值小的图形会被z值大的图形覆盖min: 1.2, //最小的缩放值max: 1.2, //最大的缩放值,},visualMap: {left: 'left',min: 500000,max: 3800000,inRange: {color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026']},text:['High','Low'],calculable: true,show: false},tooltip: {trigger: 'item',formatter: '{b}<br/>{c}'},series: [{type: 'map',map: 'jb',label: {normal: {show: true, // 显示标签formatter: function(params){let str = params.name;let value = params.value + "KW";return '{a|' + str + '}\n{b|' + value + '}';},rich: {a: {color: 'rgb(183, 239, 255)',fontSize: 14},b: {color: 'rgb(171, 255, 155)',fontSize: 14,fontWeight: 'bold'}}}},itemStyle:{emphasis:{label:{show:true}}},// 文本位置修正textFixed: {Alaska: [20, -20]},data:[{name: '张家口市', value: 917092},{name: '承德市', value: 917092},{name: '秦皇岛市', value: 917092},{name: '唐山市', value: 917092},{name: '廊坊市', value: 917092}],}]});window.addEventListener("resize", () => {myChart.resize();});}}
}
</script><style>/*html, body{*//*  margin 0*//*  padding 0*//*  width 100%*//*  height 100%*//*}*/
</style>

效果如下:

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