小操作

2019.9.21 更

添加图层map.addLayer(Shp);
移除图层map.removeLayer(Shp);
隐藏图层shp.hide();
显示图层shp.show();、

2020.3.20更

定位地图中心

        function setMapCenter() {
            var point = new Point(121.453, 31.709);
            map.centerAt(point);
        }
        dojo.connect(dojo.byId("btn5"), "onclick", setMapCenter);

开关图层

	//加载动态地图
        var dynamicUrl = "http://localhost:6080/arcgis/rest/services/webgis/School/MapServer";
        var dynamicLayer = new ArcGISDynamicMapServiceLayer(dynamicUrl);
        map.addLayer(dynamicLayer);

        // 关闭所有显示
        visible = [-1];
        dynamicLayer.setVisibleLayers(visible);

        // 打开所有显示
        visible = [];
        for (i = 0; i < dynamicLayer.layerInfos.length; i++) {
            visible.push(i);
        }
        dynamicLayer.setVisibleLayers(visible);