同步代码

src/CameraControls.ts

@@ -56,7 +56,6 @@ export class CameraControls
     }
     /**
      * 窗体失去焦点时.
-     * 
      * @memberof CameraControls
      */
     onBlur = () =>
@@ -136,7 +135,7 @@ export class CameraControls
 
     //最后一次按中键的时间
     lastMiddleClickTime = 0;
-    //鼠标    
+    //鼠标
     onMouseDown = (event: MouseEvent) =>
     {
         event.preventDefault();
@@ -220,12 +219,11 @@ export class CameraControls
     }
     /**
      * 鼠标滚轮事件
-     * 
+     *
      * @memberof CameraControls
      */
     onMouseWheel = (event: WheelEvent) =>
     {
-        event.preventDefault();
         event.stopPropagation();
 
         let pt = new THREE.Vector3(event.offsetX, event.offsetY, 0);