增加用户缩放相机体验,扩大相机范围,并且限定用户的缩放范围,避免缩放后物体过小而对象找不到的问题.

dist/CameraUpdate.d.ts

@@ -18,6 +18,8 @@ export declare class CameraUpdate {
     private m_Target;
     private m_Direction;
     private m_Orbit;
+    m_MinViewHeight: number;
+    m_MaxViewHeight: number;
     constructor();
     readonly Aspect: number;
     readonly Camera: THREE.Camera;