AutoCAD Civil 3D General Discussion

Active Contributor
Posts: 37
Registered: ‎10-25-2011
Message 1 of 3 (293 Views)
Accepted Solution

Cross Sections with a surface mask

293 Views, 2 Replies
02-04-2013 09:32 AM

We want to show two surfaces, an existing ground and a proposed ground, on a cross section. When the proposed ground meets up with existing ground, it would be nice for the line to end. With just existing ground continuing on. The surface is data referenced, and I would like to not break either of them. I thought adding a surface mask would cause the proposed surface to stop at the mask, but that doesn't appear to be the case. Are there any other options for achieving this?

*Expert Elite*
Posts: 2,752
Registered: ‎11-13-2006
Message 2 of 3 (276 Views)

Re: Cross Sections with a surface mask

02-04-2013 10:54 AM in reply to: dla4y4

Change or edit the FG surface style to display the border and extract it. (Select the surface, go to the ribbon and find the Extract objects button)


Since you have the Data Ref, create a new surface and paste the EG surface into it. (Select the surface and find the Surface Edits button on the ribbon)


Add the FG border extracted above as a hide boundary to the new surface you created. (Select the surface and find the Add Data button.


Sample the new surface in the sections and remove the EG you are using.

John Mayo, PE
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Active Contributor
Posts: 37
Registered: ‎10-25-2011
Message 3 of 3 (256 Views)

Re: Cross Sections with a surface mask

02-04-2013 02:28 PM in reply to: jmayo

That is exactly the work around I was looking for. Thanks!

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