protected virtual bool IsChangeFieldOfView(PointerPointProperties properties) { return(false); }
protected virtual bool IsResetCamera(PointerPointProperties properties) { return(false); }
protected virtual bool IsChangeLookAt(PointerPointProperties properties) { return(false); }
protected virtual bool IsStartZoomRectangle(PointerPointProperties properties) { return(false); }
protected virtual bool IsStartZoom(PointerPointProperties properties) { return(properties.MouseWheelDelta != 0); }
protected virtual bool IsStartZoomExtends(PointerPointProperties properties) { return(false); }
protected virtual bool IsStartPan(PointerPointProperties properties) { return(properties.IsLeftButtonPressed); }
protected virtual bool IsStartRotate(PointerPointProperties properties) { return(properties.IsRightButtonPressed); }