add map.options.queryTerrainInMapEvents to control whether to query terrain in map's events

Author: fuzhenn

packages/maptalks/src/map/Map.DomEvents.ts

@@ -403,11 +403,10 @@ Map.include(/** @lends Map.prototype */ {
     }(),
 
     //@internal
-    _wrapTerrainData(/* eventParam: MapEventDataType */) {
-        return;
-        // if (eventParam.containerPoint && !eventParam.terrain) {
-        //     eventParam.terrain = this._queryTerrainInfo(eventParam.containerPoint);
-        // }
+    _wrapTerrainData(eventParam: MapEventDataType) {
+        if (this.options['queryTerrainInMapEvents'] && eventParam.containerPoint && !eventParam.terrain) {
+            eventParam.terrain = this._queryTerrainInfo(eventParam.containerPoint);
+        }
     },
 
     //@internal
@@ -515,6 +514,10 @@ Map.include(/** @lends Map.prototype */ {
 
 Map.addOnLoadHook('_registerDomEvents');
 
+Map.mergeOptions({
+    'queryTerrainInMapEvents': true
+});
+
 function isRotatingMap(map) {
     if (!map._domMouseDownView) {
         return true;

packages/maptalks/src/map/Map.ts

@@ -97,6 +97,7 @@ const REDRAW_OPTIONS_PROPERTIES = ['centerCross', 'fog', 'fogColor', 'debugSky']
  * @property {Number} [options.mousemoveThrottleTime=48]         - mousemove event interval time(ms)
  * @property {Number} [options.maxFPS=0]         - 0 means no frame is locked, otherwise the frame is locked
  * @property {Number} [options.cameraFarUndergroundInMeter=2000]      - camera far distance from underground in meter
+ * @property {Boolean} [options.queryTerrainInMapEvents=true]         - whether to query terrain in map's event
  * @memberOf Map
  * @instance
  */