CompuServe Messages

Topographical maps?

    25-Feb-94 23:47:28
Fm: Christopher Martin 73561,615
To: Tim c Branan 76360,540
I missed the beginning of the thread too, but have spent alot of time with DTMs and 3DS. Are you wanting to get topo in? I would say don't but a DEM. You will spend as much time fixing it as you would digitizing it. We just digitized 150 square miles in four days and the grid itself came out exactly as we wanted it. Has we purchased the DEMs, we would have probably spent at least that much time fixing stuff. In particular, features such as steams NEVER line up. We then use Schriber's QuickSurf to manipulate the topo data into our grid. That program has many other very nice features for 3D topographic rendering. If this is the kind of stuff you guys were discussing, let me know. I can probably provide some other suggestions. If I'm way off,….never mind <g>.