confused over toporegion

[ntnik]

I have traced auto-cad drawings then rendered surfaces. I can import an auto cad file into my revit site plan and when i rotate it i can tell the vector info is on there (that is, the wire frame shows the volume of the topography).

Isn't there a way to render the surface without tracing over the auto-cad drawing with points?

help if you can, thanks

[Justin Marchiel]

not sure if i missed your point, but you can use the sub region command to "trace" out different material types on the toposurface.

Justin

[mibzim]

If your CAD file has 3D contours or points as you say:

- make sure it is 3D - imported into ALL views (ie NOT current view only under import settings - easy way to check is if you can see it in 3D view with all visibility settings on)
- click toposurface and go into edit mode
- choose "use imported" and select "imported instance"
- click your imported CAD file and it will automatically generate toposurface points
- click finish and you have your toposurface

easy

[D_Driver]

When did they change this to require the polylined dwg to be imported to ALL views? I have always done this in the following manner:
duplicate site view as SiteACAD
in that view only link the dwg. now I have 2 views that I can switch between, one that shows the dwg and one that will show the eventual toposurface.
Then use the toposurface > Use Imported > Import Instance > pick the imported dwg.

This works in 8.1, it worked in early 9.0 (beta) because I was writing some tutorials. I does NOT work in 9.1 you must import to all views which then takes the extra step to remove the link and attach it back into only those views you want it to appear.

a quick scan of the help file What's New in 9.0 and what's new 9.1 omits this "feature(???)"

is this a bug or the way it is?

also no mention of this in the toposurface help section...