Maptalks图层碰撞是指在地图上多个图层之间发生重叠的情况。为了解决这个问题，我们可以使用Maptalks的`map.setLayerZIndex()`方法来调整图层的顺序，使得具有较高z-index值的图层覆盖在较低z-index值的图层上。
以下是一个简单的代码示例：

// 创建地图对象
var map = new Maptalks.Map("map", {
  center: [116.397428, 39.90923],
  zoom: 13,
  layers: [
    new Maptalks.Layer("base", {
      type: "tile",
      urlTemplate: "http://{s}.tianditu.gov.cn/DataServer?T=img_w&x={x}&y={y}&l={z}",
      subdomains: ["0", "1", "2", "3", "4", "5", "6", "7"],
      attribution: "天地图"
    }),
    new Maptalks.Layer("overlay", {
      type: "vector",
      dataSource: new Maptalks.VectorSource({
        type: "geojson",
        data: {
          type: "FeatureCollection",
          features: [
            {
              type: "Feature",
              geometry: {
                type: "Point",
                coordinates: [116.397428, 39.90923]
              },
              properties: {
                name: "点"
              }
            }
          ]
        }
      }),
      style: new Maptalks.Style({
        fill: new Maptalks.Fill({
          color: "rgba(255, 0, 0, 0.5)"
        }),
        stroke: new Maptalks.Stroke({
          color: "#ff0000",
          width: 2
        })
      }),
      zIndex: 2000
    })
  ]
});
// 设置图层顺序
map.setLayerZIndex("base", 1);
map.setLayerZIndex("overlay", 2);

在这个示例中，我们首先创建了一个地图对象，并添加了两个图层："base"和"overlay"。然后，我们使用`map.setLayerZIndex()`方法设置了这两个图层的z-index值，使得"overlay"图层覆盖在"base"图层上。这样，当地图加载时，"overlay"图层中的点将显示在"base"图层上的地图上。

// 获取地图对象
var map = new Maptalks.Map("map", {
  center: [116.397428, 39.90923],
  zoom: 13,
  layers: [
    new Maptalks.Layer("base", {
      type: "tile",
      urlTemplate: "http://{s}.tianditu.gov.cn/DataServer?T=img_w&x={x}&y={y}&l={z}",
      subdomains: ["0", "1", "2", "3", "4", "5", "6", "7"],
      attribution: "天地图"
    })
  ]
});

// 添加图层
var layer = new Maptalks.Layer("collision", {
  type: "vector",
  dataSource: new Maptalks.VectorSource({
    type: "geojson",
    data: {
      type: "FeatureCollection",
      features: [
        {
          type: "Feature",
          geometry: {
            type: "Point",
            coordinates: [116.397428, 39.90923]
          },
          properties: {
            name: "点"
          }
        }
      ]
    }
  }),
  style: new Maptalks.Style({
    fill: new Maptalks.Fill({
      color: "rgba(255, 0, 0, 0.5)"
    }),
    stroke: new Maptalks.Stroke({
      color: "#ff0000",
      width: 2
    })
  }),
  zIndex: 1000
});

map.addLayer(layer);

// 碰撞检测
function checkCollision() {
  var points = [];
  var features = layer.getData().features;
  for (var i = 0; i < features.length; i++) {
    var feature = features[i];
    var point = feature.geometry.coordinates;
    points.push(point);
  }
  var result = Maptalks.Util.checkPointsCollision(points);
  if (result) {
    console.log("发生碰撞");
  } else {
    console.log("未发生碰撞");
  }
}



// 定时检测碰撞
setInterval(checkCollision, 1000);

亲测有效：

<!DOCTYPE html>
<html>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>图层 - 图层碰撞</title>
  <style type="text/css">
    html,body{margin:0px;height:100%;width:100%}
    .container{width:100%;height:100%}
    .pane{background:#34495e;line-height:28px;color:#fff;z-index:10;position:absolute;top:20px;right:20px}
    .pane a{display:block;color:#fff;text-align:left;padding:0 10px;min-width:28px;min-height:28px;float:left}
  </style>
  <link rel="stylesheet" href="https://unpkg.com/maptalks/dist/maptalks.css">
  <script type="text/javascript" src="https://unpkg.com/maptalks/dist/maptalks.min.js"></script>
  <body>
    <div id="map" class="container"></div>
    <div class="pane">
        <input type="checkbox" checked="true" id="checkbox"><labe>collision</labe>
    </div>
    <script>
      var map = new maptalks.Map('map', {
        center: [-0.113049, 51.498568],
        zoom: 8,
        baseLayer: new maptalks.TileLayer('base', {
          urlTemplate: 'https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',
          subdomains: ['a','b','c','d'],
          attribution: '&copy; <a href="http://osm.org">OpenStreetMap</a> contributors, &copy; <a href="https://carto.com/">CARTO</a>'
        })
      });
      var layer = new maptalks.VectorLayer('layer', {
        'collision': true,
        'collisionDelay': 250,
        'forceRenderOnMoving': true,
        'forceRenderOnZooming': true,
        'forceRenderOnRotating': true,
        // debug:true
      }).addTo(map);
      // layer.on('layerload', () => {
      //     console.log('layerload')
      // });
      function randomCoordinates() {
        var coordinates = [];
        var center = map.getCenter();
        var x = center.x, y = center.y;
        while (coordinates.length < 1000) {
          var lng = x + Math.random() - 0.5, lat = y + Math.random() * 0.6 - 0.3;
          coordinates.push([lng, lat]);
        }
        return coordinates;
      }
      var url = 'data:image/png;base64,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';
      var points = randomCoordinates().map(function (c, index) {
        var point = new maptalks.Marker(c, {
          zIndex: 2000 - index,
          symbol: {
            markerFile: url,
            markerWidth: 40,
            markerHeight: 40,
            textName: index,
            textSize: 12,
            textDy: -26,
            textFill: '#fff'
          }
        });
        return point;
      });
      layer.addGeometry(points);
      function updateCollision(e) {
        layer.getGeometries().forEach(function (marker) {
          marker.options.collision = e.target.checked;
        });
        layer.getRenderer().draw();
      }
      document.getElementById('checkbox').addEventListener('change', updateCollision);
    </script>
  </body>
</html>

此处为隐藏内容，请评论后查看隐藏内容，谢谢！

 您阅读本篇文章共花了：