使用JS在ArcGIS地图上隐藏重叠标记

require([
  "esri/Map",
  "esri/views/MapView",
  "esri/layers/FeatureLayer",
  "dojo/domReady!"
], function(Map, MapView, FeatureLayer) {
  // 创建地图
  var map = new Map({
    basemap: "streets"
  });

  // 创建地图视图
  var view = new MapView({
    container: "viewDiv",
    map: map,
    center: [-118.244, 34.052],
    zoom: 13
  });

  // 创建FeatureLayer
  var featureLayer = new FeatureLayer({
    url: "https://services.arcgis.com/V6ZHFr6zdgNZuVG0/arcgis/rest/services/Landscape_Trees/FeatureServer/0"
  });

  // 将FeatureLayer添加到地图
  map.add(featureLayer);

  // 监听click事件
  view.on("click", function(event) {
    // 获取点击位置的要素集合
    view.hitTest(event).then(function(response) {
      var results = response.results;

      // 遍历结果，查找要素
      for (var i = 0; i < results.length; i++) {
        var feature = results[i].graphic;

        // 检查要素属性以确定是否需要隐藏
        if (feature.attributes && feature.attributes.someProperty) {
          // 修改要素的可见性
          feature.renderer = {
            symbol: {
              type: "simple-marker",
              color: [255, 255, 255, 0] // 透明颜色
            }
          };
        }
      }
    });
  });
});