3D faces not adding to surface

[Anonymous]

I am trying to add 3d faces to a surface and they will not show up in the definition. I have been building surfaces with 3D faces for excess of 10 years. I create the 3D faces for the road corridor. When adding the 3D faces to the surface, the surface includes them at that present time but doesn't add them to the definition. If I want to go back and edit the surface and have to rebuild for any reason, the data for the 3D faces disappear. This is happening because the 3D faces aren't being added to the definition of the surface. I have cleaned the surface multiple times and nothing changes. Any ideas why this particular file is having troubles.

Scott

[Anonymous]

I know that when I try to add faces without changing the object type to 3D Faces the command executes but nothing is added to the surface. I'm sure after ten years you're adding them correctly. Just wanted to confirm you're adding them correctly.

[Anonymous]

Is it possible the 3D faces are getting deleted? If so, I've found this to be an option for us.  
Change the Build setting to Copy Deleted Dependent Objects to Yes



For us this is helpful because we can use a surveyors cogo points to create an EG Surface, then we can delete the cogo points so they don't slow our file down.  Often we manage developments from 5 acre's to thousands of acres, resulting in large survey's with an incredible number of cogo points.  I've found cogo points slow the file down alot.

But alas, I'm off topic.

Hope this helps!

[jmayo-EE]

What is the source of the 3d faces? Were they created with an Autodesk product or converted from another program?

In a worse case you should be able to type region, select all 3d faces to convert them. THen explode them and run mapclean or overkill to remove dups. Add the lines to the tin def.

[Gradezilla]

I know this is old but I just spent an inordinate amount solving this issue for a large surface with a small error. If there are any overlapping contradictory 3D faces the surface will build as per normal, however the operation will not appear in the surface definition. On rebuild the surface will fail. Shows in the event viewer as "Information" and "Ignored", should be "Error"? Easy to see on a small surface however this error disappeared into the background with a large amount of data.