AutoCAD Civil 3D General Discussion

AutoCAD Civil 3D General Discussion

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Distinguished Contributor
martin888888
Posts: 247
Registered: ‎01-27-2011
Message 1 of 5 (343 Views)

Creating a surface from polylines / contours

343 Views, 4 Replies
10-25-2013 07:24 PM

I am creating a surface from polylines and the surface is not being created per the what the polylines represent.  These are simple 5:1, 3:1, and 3.5:1 slopes.  The surface wants to create curves instead of straigtlines (see attached).  Does anyone have any clues what might cause this?  Thanks

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neilyj
Posts: 3,922
Registered: ‎08-01-2008
Message 2 of 5 (318 Views)

Re: Creating a surface from polylines / contours

10-26-2013 04:57 AM in reply to: martin888888
what do the triangles look like? do you have any smoothing turned on?
neilyj
(No connection with Autodesk other than using the products in the real world)


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wfberry
Posts: 1,917
Registered: ‎09-05-2006
Message 3 of 5 (283 Views)

Re: Creating a surface from polylines / contours

10-28-2013 05:06 AM in reply to: martin888888

It's probably just a smoothing option.

 

Bill

 

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AllenJessup
Posts: 6,100
Registered: ‎05-21-2003
Message 4 of 5 (275 Views)

Re: Creating a surface from polylines / contours

10-28-2013 05:16 AM in reply to: martin888888

Try adding the polylines as breaklines instead of contours.

 

Allen Jessup

Distinguished Mentor
castled071049
Posts: 823
Registered: ‎11-15-2005
Message 5 of 5 (238 Views)

Re: Creating a surface from polylines / contours

10-28-2013 08:33 AM in reply to: wfberry

I agree with wfberry... it looks like a smoothing setting.

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