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  • openlayers6结合echarts4实现迁徙图

    效果图如下:

    参考GitHub来实现的,更详细的源码以及参数说明见:GitHub

    • 本篇文章的html源码:
    <!DOCTYPE html>
    <html>
    <head>
    <title>openlayers6结合echarts4实现迁徙图</title>
    <link rel="stylesheet" href="lib/ol.css">
    <script src="lib/ol.js"></script>
    <script src="lib/echarts.js"></script>
    <script src="lib/ol-echarts.js"></script>
    <!--<script src="https://cdn.jsdelivr.net/npm/echarts/dist/echarts.js"></script>
    <script src="https://unpkg.com/ol-echarts/dist/ol-echarts.js"></script>-->
    <style>
    html, body, #map {
    height: 100%;
    margin: 0;
    padding: 0;
    }
    </style>
    </head>
    <body>
    <div id="map"></div>
    <script>
    /**
    * 地图创建初始化
    */
    var map = new ol.Map({
    target: 'map',
    layers: [
    new ol.layer.Tile({
    source: new ol.source.XYZ({
    url: 'http://cache1.arcgisonline.cn/arcgis/rest/services/ChinaOnline' +
    'StreetPurplishBlue/MapServer/tile/{z}/{y}/{x}'
    })
    })
    ],
    view: new ol.View({
    center: [116.55406673632812, 39.94828066015626],
    projection: 'EPSG:4326',
    zoom: 10
    })
    });
     
    //迁徙图图层初始化
    var echartslayer = new EChartsLayer(getOption());
    echartslayer.appendTo(map)
    function getOption () {
    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',
    zlevel: 1,
    effect: {
    show: true,
    period: 6,
    trailLength: 0.7,
    color: '#fff',
    symbolSize: 3
    },
    lineStyle: {
    normal: {
    color: color[i],
     0,
    curveness: 0.2
    }
    },
    data: convertData(item[1])
    },
    {
    name: item[0] + ' Top10',
    type: 'lines',
    zlevel: 2,
    effect: {
    show: true,
    period: 6,
    trailLength: 0,
    symbol: planePath,
    symbolSize: 15
    },
    lineStyle: {
    normal: {
    color: color[i],
     1,
    opacity: 0.4,
    curveness: 0.2
    }
    },
    data: convertData(item[1])
    },
    {
    name: item[0] + ' Top10',
    type: 'effectScatter',
    coordinateSystem: 'geo',
    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])
    };
    })
    });
    });
    return {
    tooltip: {
    trigger: 'item'
    },
    /*title: {
    text: '模拟迁徙图',
    subtext: '',
    left: 'center',
    textStyle: {
    color: '#fff'
    }
    },*/
    series: series
    };
    }
     
    </script>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/giserhome/p/13379672.html
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