/*
 * @Descripttion: 
 * @version: 
 * @Author: song
 * @Date: 2020-10-23 14:04:10
 * @LastEditors: song
 * @LastEditTime: 2020-10-23 16:16:48
 */
define([
    "dojo/_base/declare",
    'jimu/BaseWidget'
], function (
    declare,
    BaseWidget
) {
    return declare("Cluster", [BaseWidget], {
        baseClass: "Cluster",
        postCreate: function () {
            this.inherited(arguments);
        },
        destroy: function () {

            this.inherited(arguments);
        },

        startup: function () {
            this.inherited(arguments);
        },
        flag: false,
        click: function () {
            if (this.clusterLayer) {//判断是否创建了，如果创建了就是控制显示隐藏
                this.flag = !this.flag;

                if (this.flag) {
                    this.labelNode.innerHTML = "隐藏聚合图层";
                } else {
                    this.labelNode.innerHTML = "显示聚合图层";
                }
                this.clusterLayer.clear();
                this.clusterLayer = null;
            } else {
                this.flag = true;
                this.labelNode.innerHTML = "隐藏聚合图层";
            }
            this.addClusterLayer();
        },

        addClusterLayer: function () {
            let layer1 = new DC.ClusterLayer('layer1')
            window.dcViewer.addLayer(layer1)
            let positions = generatePosition(1000)
            positions.forEach(item => {
                let billboard = new DC.Billboard(item, 'widgets/Cluster/images/camera.png')
                layer1.addOverlay(billboard)
              })
            window.dcViewer.flyTo(layer1)
            this.clusterLayer = layer1;
            function generatePosition(num) {
                var list = []
                for (var i = 0; i < num; i++) {
                  var lng = 120.38105869 + Math.random() * 0.5
                  var lat = 31.10115627 + Math.random() * 0.5
                  list.push(new DC.Position(lng, lat))
                }
                return list
              }
        }
    });
});