I have Everything well documented and i have a working solution to get scanner data. I get a list with the Diameters for every 2 cm of the log. But my problems is how to approach the 3D. Since they want me to do it in DirectX and not Open GL and they want me to select one of the frameworks out there such as Unity or any other. The problem is that i have no clue what package to select ? Unity ?

Thanks. Looks like that was the approach im looking for.

It finally occurred to me today that, were I a terrorist, I would check the list frequently. :)

This is not a paint program, it's a drawing program. The difference is that when you paint, you leave behind pixels, when you draw, you leave shapes that you can then interact with. Basically, what you want to do is store a collection of a base shape class, and create derived classes for the shapes you draw. Then when you move the mouse, you need to iterate over those shapes to work out if the mouse is over one. If it is, you start using mouse actions to interact with the shape in question. Changing that instance of a shape class, obviously then changes how it is drawn on screen. GDI+ actually does very little here, each shape knows how to draw itself, and presumably the drawings are not that complex. The real work is in working out what shape the mouse is over, and manipulating it. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )