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There are 5 or 6 surfaces in the attached dwg. When i export via NWCOUT or open the dwg directly in Navisworks the largest surface is missing. It is on the same layer and has same style as other surfaces that do export correctly.
Has anyone encountered this before and found a solution? I have done a search and come up with nothing.
Dang, that one surface is stubborn. I tried several things and could not get NavisWorks to read it.
Finally, I assigned a style that shows the tin, extracted the triangles and then created an NWC of those. That worked so you see the surface in NavisWorks, but it's not really a surface, it's four thousand 3d faces.
I don't know why this is happening with this surface. I suggest you create an Autodesk support incident and see if they can tell you what's going on here.
Tim Corey MicroCAD Training and Consulting, Inc. Redding, CA Autodesk Gold Reseller
New knowledge is the most valuable commodity on earth. -- Kurt Vonnegut
Sorry for the delayed response but I have been on leave. Thanks for spending your time having a look for me I appreciate it. Its certainly a strange occurance, I will open a support incident as you recommend and report back any solution. Otherwise i will extract the triangles as a crude workaround.
I discovered that when someone else logged onto my machine for the first time and started up Civil 3D, they were able to view the surface correctly in Object Viewer and also export to Navisworks via NWCOUT.
I logged back in and tried switching my profile within AutoCAD but still came up with the error.
Therefore i saved all my AutoCAD profiles/settings/pgp files etc and cleared the registry for AutoCAD against my windows profile on this pc. For me this meant deleting R19.0 folder via the steps below.
I've encountered this problem, but it seemed that when i removed one of the 3d-polylines from the surface, the surface would show in navisworks.
When i added the line to the surface again, than Navisworks couldn't show the surface. So it seems that one of the breaklines from the surface makes it corrupt for Navisworks (in my situation). It's quite an annoying bug, but maybe i'll try the solution that's posted above.
If a post provides a fix for your issue, click on "Accept as Solution" to help other users find solutions to problems they might have that are similar to yours.
Andrew Puller Maitland, NSW, Australia Windows 10 Enterprise 64bit Intel core i7 11800 @ 2.30 GHz with 32GB Ram Civil 3d 2021
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