手绘图过大，瓦片处理

src/main/webapp/html/back/ybsjMap/ybsjMap.html

@@ -151,6 +151,16 @@
 						new AMap.LngLat(swlonlat.lng, swlonlat.lat), new AMap.LngLat(nelonlat.lng, nelonlat.lat)),
 					zooms : [ min_maplevel, max_maplevel ]
 				});
+
+				var tilerLayer = new AMap.TileLayer({
+					zIndex:10,
+					// getTileUrl:'tiles/[z]/tile-[x]_[y].png',
+					getTileUrl: function(x,y,z){
+						console.log('https://www.lbgjtoa.com/appImg/tiles/' + z + '/tile-' + x +'_' + y + '.png')
+						return 'https://www.lbgjtoa.com/appImg/tiles/' + z + '/' + x +'_' + y + '.png'
+					}
+				});
+
 				map = new AMap.Map("myMap", {
 					//resizeEnable: true, //是否监控地图容器尺寸变化
 					center : [ slonslat.lng, slonslat.lat ], //初始地图中心点
@@ -158,7 +168,8 @@
 					//zoomEnable:false
 					layers : [
 						new AMap.TileLayer(),
-						imageLayer
+						// imageLayer
+						tilerLayer
 					]
 				});
 				map.plugin('AMap.Geolocation', function () {
@@ -183,12 +194,31 @@
 				});
 				foundMarker(data);
 				map.setZoom(start_maplevel)
-				map.set(imageLayer)
+				// map.set(imageLayer)
 			}
 		});
 	}
 
+	function lockMapBounds(){
+		var bounds = map.getBounds();
+		map.setLimitBounds(bounds);
+		logMapInfo();
+	};
+
+
+	function logMapInfo() {
+		var limitBounds = map.getLimitBounds();
+		if (limitBounds) {
+			document.querySelector("#ne").innerText = limitBounds.northeast.toString();
+			document.querySelector("#sw").innerText = limitBounds.southwest.toString();
+		} else {
+			document.querySelector("#ne").innerText = document.querySelector("#sw").innerText = "未限定";
+		}
+	};
 
+	//启用地图范围限定
+	lockMapBounds();
+	logMapInfo();
 
 	//初始化类型
 	function spotType() {