Explode TIN

[bingeomatics]

Hi, everyone.

I have a little problem. When I export my Civil file (which in relief Surface model) to DWG-file format for the AutoCAD users the TIN model changes to "3D Face" objects. But when I gonna to explode these 3D Face objects whith the command "explode" they I can't do it. How can I to explode it? Who did proccess like it?

[Alfred.NESWADBA]

Hi,

you can start command _REGION to convert a 3d-face-object into a region object, then you can explode this region object to get the 3d-lines.

Just out of curiosity ... what do you need that for?

- alfred -

[bingeomatics]

Thanks, Alfred for idea.

But I didn't undrestud your question - the last sentence.

[neilyj666]

He's just asking why you need to explode the 3D faces?

[bingeomatics]

Because, I gonna to change elevations of Surface points (not COGO poins) and creat Surface again using TIN lines like breaklines.

[DaveM]

If you are using a style that shows your tins, you extract the linework using the extract objects tool in surface tools.

[neilyj666]

I see - you'll also need to extract the points from your original TIN and convert to cogo in order to edit them easily.

Your exploded Tin Lines (Region > Explode) may need to be Flattened to 0 and used as proximity breaklines or the TIN may use the z values from the exploded TIN lines (not sure exactly on this one though)

[neilyj666 · Accepted solution]

See also here http://forums.autodesk.com/t5/AutoCAD-Civil-3D/Convert-3D-face-to-linework/td-p/3602448

[neilyj666]

That will only get the triangles though (and 3d faces when exploded which is what the problem is)

[bingeomatics]

Thank you very much, neilyj.

I fined 3DFTO3DP.LSP form the link which you show here. And it heled me...

[bingeomatics]

I have extracted TIN and points from Surface. And using that lisp I can explode TIN. I will exchange points to COGO points, will edit points and after it with these points I will creat Surface again (using TIN-lines like proxmity breaklines). That is what I want to do.....

Thanks everyone!