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OverlayWidenMatchSlope2 Assembly Query

6 REPLIES 6
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Message 1 of 7
neilyj666
679 Views, 6 Replies

OverlayWidenMatchSlope2 Assembly Query

I have a corridor produced with the above assembly and have created a formation surface which looks good in 3D and is essentiallly the redline (Earthworks Outline) in the screenshot.

 

The widening to the left and right create vertical edges (I can't see a way to overcome this in the subassembly) so how can a surface be created as vertical sides are not permitted?? If I zoom in the triangles do have a gap but it seems to be less than 1mm as ID'ing points shows identical coordinates

 

REGENALL Regenerating model.
Command: id
Specify point:  X = 389260.169     Y = 424823.507     Z = 0.000
Command:
ID
Specify point:  X = 389260.169     Y = 424823.507     Z = 0.000

 

I need the surface triangles to be exported for use in a 3rd party application but they do not form correctly and the earthworks outline in the area of the road is very wrong.

 

Any ideas/workarounds??

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2024 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760
6 REPLIES 6
Message 2 of 7
AlmasSuljevic
in reply to: neilyj666

Hi neilyj,

 

I think you will need to create a custom assembly to be able to avoid those vertical links. 



Almas Suljevic
Product Support Specialist
Autodesk Global Subscription and Support
Autodesk, Inc.

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Message 3 of 7
BrianHailey
in reply to: neilyj666

If the surface is correct in Civil 3D but not in the other application, it sounds like the other application is the one with the issue.

 

I've seen other programs, such as Revit, that can't duplicate a surface that was created in Civil 3D. Is it the fault of Civil 3D? No, that other surface just doesn't do topos well. Is this the case iin your situation? I really don't know.

 

As for the vertical data issue, if your corridor has vertical information in it (or overlapping) make sure you set an Overhaing Correction to the surface (doesn't really matter which one in most cases). This will do exactly what you are seeing, put in a slight offset to the vertical location.

 

Hope this helps.

Brian J. Hailey, P.E.



GEI Consultants
My Civil 3D Blog

Message 4 of 7
neilyj666
in reply to: neilyj666

the problem seems to be that the offset correction is less than 1mm which the other software has trouble with...

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2024 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760
Message 5 of 7
fcernst
in reply to: neilyj666

Take your coordinate decimal precision out farther, and let's see what the "vertical" offset it really is....



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com
Message 6 of 7
sboon
in reply to: neilyj666

If the other software requires a 1mm minimum then it may be possible to use generic links and some trickery to create a datum surface that suits the requirement.

 

Can you post the drawing, or at least a sample piece with the assembly included?

Steve
Expert Elite Alumnus
Message 7 of 7
neilyj666
in reply to: sboon

Thanks for the replies - I'm on another project at the moment but I'll come back to this one later in the week

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2024 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760

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