Hello, I an working an a small problem at the moment. I am basically using the "WinFormsExtendedViewExample" that comes with the download of CadLib 3.5. How can i get the coordinates of the bounds of the viewControl? I am not an AutoCAD user, so some things that may seem clear and logical to en experienced user do not apply to me.. Thanks in Advance

I hope you are working with 2D data, as with 3D there is no 1:1 relation between model bounds and bounds of the view control as each of the points of the control is associated with a ray in the 3D model. In 2D things are easy: you are projecting the model to the view control using a transformation of type Matrix4D which is usually called to2dTransform in out examples. To go the other way back just invert that transform and feed it with view points:- Rammi

Yes it is 2d data. If i rotate the view, does this give correct values or do I have to handle rotation by myself?

That depends how you rotate. If you use the to2DTransform for that, everything will just work as described. If you do it by other means, you'll have to undo that first before you feed the points into the inverse transform. - Rammi

Thanks, its working perfectly :)