copy displayToModel displayToModel displayToWorld enableZoom getCenterW getDpiX getDpiY getHeight getMaxViewScale getMinViewScale getViewScale getWidth getWndRect getWndRectM getWndRectW getWorldLimits getWorldToDisplayX getWorldToDisplayY getZoomTimes getZoomValue GiTransform GiTransform m_impl modelToDisplay modelToWorld setModelTransform setResolution setViewScaleRange setWndSize setWorldLimits worldToDisplay worldToModel zoom zoomByFactor zoomPan zoomScale zoomTo zoomTo zoomWnd ~GiTransform

getDpiY() float GiTransform::getDpiY ( ) const 返回当前绘图的设备Y分辨率 屏幕窗口显示时为屏幕分辨率，打印或打印预览时为打印机分辨率 这是这个函数的调用关系图: