模拟迁徙

一个简单的示例

结果

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实时编辑器

function render(props) {
  const container = useRef(null);

  const data = useBaseUrl('/json/scatter.json');

  const initChat = (map, option) => {
    const chart = new EChartsLayer(option, {
      stopEvent: false,
      hideOnMoving: false,
      hideOnZooming: false,
      forcedPrecomposeRerender: true,
    });

    chart.appendTo(map);
  }

  const getOption = () => {
    const 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],
    };
    const 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 }],
    ];
    const 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 }],
    ];
    const 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 }],
    ];
    const 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';
    const convertData = (data) => {
      const res = [];
      for (let i = 0; i < data.length; i++) {
        const dataItem = data[i];
        const fromCoord = geoCoordMap[dataItem[0].name];
        const toCoord = geoCoordMap[dataItem[1].name];
        if (fromCoord && toCoord) {
          res.push({
            fromName: dataItem[0].name,
            toName: dataItem[1].name,
            coords: [fromCoord, toCoord],
          });
        }
      }
      return res;
    };
    const color = ['#a6c84c', '#ffa022', '#46bee9'];
    const series = [];
    [['北京', BJData], ['上海', SHData], ['广州', GZData]].forEach((item, i) => {
      series.push(
        {
          name: `${item[0]} Top10`,
          type: 'lines',
          zlevel: 1,
          effect: {
            show: true,
            period: 6,
            trailLength: 0.7,
            color: '#fff',
            symbolSize: 3,
          },
          lineStyle: {
            normal: {
              color: color[i],
              width: 0,
              curveness: 0.2,
            },
          },
          data: convertData(item[1]),
        },
        {
          name: `${item[0]} Top10`,
          type: 'lines',
          zlevel: 2,
          effect: {
            show: true,
            period: 6,
            trailLength: 0,
            symbol: planePath,
            symbolSize: 15,
          },
          lineStyle: {
            normal: {
              color: color[i],
              width: 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(val) {
            return val[2] / 8;
          },
          itemStyle: {
            normal: {
              color: color[i],
            },
          },
          data: item[1].map((dataItem) => ({
            name: dataItem[1].name,
            value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value]),
          })),
        },
      );
    });
    return {
      tooltip: {
        trigger: 'item',
      },
      series,
    };
  }

  const init = () => {
    const map = new ol.Map({
      target: container.current,
      view: new ol.View({
        center: [113.53450137499999, 34.44104525],
        projection: 'EPSG:4326',
        zoom: 4, // resolution
        rotation: 0,
      }),
      layers: [
        new TileLayer({
          source: new XYZ({
            url: 'https://{a-c}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png',
          }),
        }),
      ],
    });

    initChat(map, getOption());

    function resize(target) {}

    return {
      resize,
    }
  }

  useEffect(() => {
    const { resize } = init();

    return () => {
    };
  }, []);

  return (
    <div className="live-wrap">
      <div ref={container} className="map-content" />
    </div>
  );
}