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Posts: 67
Registered: ‎01-09-2013
Message 1 of 4 (1,494 Views)
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Convert surface boundary to polyline

1494 Views, 3 Replies
02-01-2013 08:24 AM

I need to convert my surface boundary to a polyline so I can use it to clip another surface. Is there a simpler way than tracing it with the polyline command?



AutoCAD Civil 3D 2012 SP4
Windows 7 (64)
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sjg
Posts: 518
Registered: ‎09-29-2010
Message 2 of 4 (1,489 Views)

Re: Convert surface boundary to polyline

02-01-2013 08:57 AM in reply to: jamesbarnett
Yeah. Turn your border on within your surface style, select surface and within contextual ribbon there is a extract objects icon, then a dialogue will pop up asking what you would like to extract. Uncheck everything except for border, hit ok. Border will be extracted as a 3dpolyline. Turn off border within surface style, CONVERT3DPOLYS, command to convert into polyline.
Steve Goessling
Land Consultants
Civil3D 2013
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Intel i7 2600 @ 3.40Ghz
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Posts: 1,464
Registered: ‎12-14-2006
Message 3 of 4 (1,463 Views)

Re: Convert surface boundary to polyline

02-01-2013 11:59 AM in reply to: sjg

also after getting a polyline from this method remember to use drawing cleanup with the simplify linear objects and set it to 0.5 tolerance to reduce the number of vertices drastically.

 

 

Dan

Civil 3D 2013
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Valued Contributor
Posts: 67
Registered: ‎01-09-2013
Message 4 of 4 (1,449 Views)

Re: Convert surface boundary to polyline

02-01-2013 03:13 PM in reply to: jamesbarnett

Thanks guys!



AutoCAD Civil 3D 2012 SP4
Windows 7 (64)

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