CompuServe Messages

C#, Do you have programming skills? (Seems like I remember from long time ago that you do.) If Z is scaled by some function, it sounds like a candidate for the TSE. Alternatively, (and probably easier) you could write a simple program in C (or BASIC) to process the original DXF and create a new DXF where all the vertices were ordered identically but scaled in Z according to your function. When creating the mathematical surfaces I mentioned earlier, I researched the DXF format for a couple of hours and was able to write a program that created the surface mesh – it turned out to be pretty simple. (It's MATHDX.ZIP in the libs here.) I wrote a second program which processed a DXF and made all invisible lines visible (before AutoEdge). If you are interested, it would probably be a good place to start since it shows a simple way to process a DXF file with a C program. Let me know if you want it. JKJ