AutoCAD Civil 3D General Discussion

Active Contributor
Posts: 43
Registered: ‎01-08-2008
Message 1 of 5 (1,805 Views)

surface intersection

1805 Views, 4 Replies
07-08-2008 10:39 AM
is there a way to extract a 3D poly line where two surfaces intersect each other.

i have ground surface and i have dam surface. they would like to show the filler material in the cross section graph.. so i copied then raised the surface the required depth.

so now the surface and side slope of the dam intersect. and i would like to trim the filler material surface to be in line with the dam.
*Terry W. Dotson
Message 2 of 5 (1,805 Views)

Re: surface intersection

07-08-2008 11:29 AM in reply to: rahul.jairath
rjairath wrote:

> is there a way to extract a 3D poly line where two surfaces intersect
> each other.

Could you subtract one surface from the other and contour the zero
elevation line on the difference surface?

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*Expert Elite*
Posts: 2,715
Registered: ‎07-09-2003
Message 3 of 5 (1,805 Views)

Re: surface intersection

07-08-2008 06:32 PM in reply to: rahul.jairath
Make a volume surface comparing the 2 surfaces. Then display only the 0 contour. Use the surface utility "extract objects from surface". And pick the 0 contour. Then drape that over you main surface to create a 3d object.

Matt Kolberg
Cansel - Autodesk Division
Valued Contributor
Posts: 52
Registered: ‎01-04-2013
Message 4 of 5 (1,007 Views)

Re: surface intersection

03-29-2013 02:35 AM in reply to: rahul.jairath

This link is an explination on how to use the Minimum Distance Between Surfaces command!


*Expert Elite*
Posts: 3,694
Registered: ‎08-01-2008
Message 5 of 5 (1,004 Views)

Re: surface intersection

03-29-2013 02:54 AM in reply to: Joyfer

I hope the OP hasn't been waiting 5 years for this reply...:smileywink:

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