So I'm trying to get a project out this weekend...2 miles 100' wide roadway topo.
The problem is that every time I go to edit the surface (swap TIN edge, etc) the contours disappear. Even when on a locked layer and after a regen. Gone.
I'm also running into an issue that says "ERROR: Exclusion boundary not closed". I didn't pick an exclusion boundary.
I've recovered the drawing, made a new tin file...everything...any ideas?
Tom
Is "Erase Previous Contour Entities" checked in Triangulate and Contour?
Colin is probably on to something there.
Make sure ucs is set to world
Are you sure you're not selecting entities when the software is asking for an exclusion perimeter? (instead of hitting enter at the "hit enter for none")