Paul F Brewster (p.f.brewster++at++larc.nasa.gov)
Tue, 29 Jun 1999 16:41:20 -0400 (EDT)
I'm trying to do some finite element work, so I want to show a fairly
detailed model with a finite element mesh on top of it. What I am doing is
just using perfly to view an inventor file that has the object data in it.
The main problem I have is what is the best way to draw a finite element
grid on top of an object?
I can do it as a collection of quads and then draw them as a wireframe,
but the quads get divided into triangles, which gives me extra lines on my
mesh, that's bad. Is there a way to turn that off?
I can draw them as individual lines. Problem, there are so many lines that
I can't get very good interactive rates. It takes me twice as long to draw
the line mesh as it does to draw the object. Since it is a finite element
mesh I don't really want to do any decimation type stuff, I need it that
detailed. Is there a fast way to draw lines? Treat them as degenerate
triangles maybe?
Another problem, while loading a collection of lines in Inventor format
into perfly I run into a problem. Some lines come out missing. I at first
thought it was being blocked by the solid model behind it, but that is not
the case. This happens with just the line set. What happened to the
missing lines? I have heard it is a culling problem, but I am not sure how
this applies... Can anyone help?
Thanks for the time,
I now return you to the rest of your email.
Paul Brewster
This archive was generated by hypermail 2.0b2 on Tue Jun 29 1999 - 13:41:29 PDT