Hi, I have a question regarding employing ArcObjects to transform the map coordinates to screen coordinates. Generally, I would like to know the location of a map point in the ActiveView (see below): [ATTACH=CONFIG]17587[/ATTACH] What I need is the arcview coordinates in red rectangle. I am using the function named DisplayTransformation. Underneath is the part of code to convert the coordinates. IPageLayout pPageLayout = __mDoc.PageLayout; IGraphicsContainer pGraphicsContainter = pPageLayout as IGraphicsContainer; IActiveView pActiveView = pPageLayout as IActiveView; IScreenDisplay pDisplay = pActiveView.ScreenDisplay; IDisplayTransformation pTransform = pDisplay.DisplayTransformation; IPoint pPoint = pFeature.Shape as IPoint; System.Int32 sx= 0; System.Int32 sy= 0; pTransform.FromMapPoint(pPoint, out mx, out my); However, every time I convert a point with coordinates of 964607.6264 and 1085671.573 to screen coordinates, it ended up with a value of 77327282 and -87031210 which is obviously not what I want. So my question is, am I using a wrong function? If yes, what function should I use exactly. Or the result is correct, and I just don't interpret it correctly. Please let me know if you know the answer. Thank you so much, Zhenyu
... View more