AutoCAD Civil 3D General Discussion

AutoCAD Civil 3D General Discussion

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Registered: ‎09-03-2012
Post 1 of 4

Converting 3D Poly to a Feature line

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10-25-2012 01:10 PM

Hello all,

So I am attempting to create a simple grading daylight. I began with a 3D Polyline that has only 2 verticies. When I "Convert Feature Lines from Objects," it creates a feature line with 4 verticies. The 1st and last have the initial elevations from the 3D Poly, but the 2 new verticies seem to be pulling elevations off the surface below where I am working.

 

My questions are: 1) why are new verticies added? 2) can this be prevented?

 

I know that I can overwrite the slopes in elevation editor, but this seems like an unnecesarry extra step.

 

Thank you for your input

Civil 3D 2013, HF3.0
Windows 7, 64-bit, SP1
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Post 2 of 4

Re: Converting 3D Poly to a Feature line

10-25-2012 02:15 PM in reply to: silvernich

When you Create Feature Line from Objects, be sure you turn off the option to Assign Elevations.

Tim Corey, Owner
Delta Engineering Systems
Redding, CA
Autodesk Authorized Value-Added Reseller
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Post 3 of 4

Re: Converting 3D Poly to a Feature line

10-26-2012 05:41 AM in reply to: silvernich

Or if you need to assign elevations uncheck ie.PNG in the Assign Elevations dialog box.

 

Allen

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Registered: ‎09-03-2012
Post 4 of 4

Re: Converting 3D Poly to a Feature line

10-29-2012 04:12 PM in reply to: AllenJessup

Thank you for your comments. I will see when I run into it again if I can give a more concrete example as both of your suggestions I believe I was already doing.

Civil 3D 2013, HF3.0
Windows 7, 64-bit, SP1
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