Snapping to surface [Archive]

matejt

2011-05-03, 07:17 AM

Hi,
I have a surface in Civil 3D. Now I would like to draw some objects on that surface, espacially 3d polylines.I can't figure out how to enable snapping to surface. I tried several options like:Nearest and Nearest to Face but none of them worked.
Thanx for your suggestions,
Matej

rkmcswain

2011-05-03, 11:49 AM

I am able to snap to contour lines and triangles OK. What elements are visible in your current style?

If you are wanting to draw the entire object on the surface, then just draw it as normal at elevation 0.0, then run the _AeccFeatureElevsFromSurf command to set the elevations from the surface.

matejt

2011-05-04, 06:47 AM

rkmcswain, thank you for the response.

Yes, I also can snap to triangles, however I need to show draped image on surface to be able to recognize some features on the image at the time of drawing 3d polylines. Hence I use Realistic Visual Style.
Can anybody snap to surface when Realistic visual style is used?

Thanks,
Matej