DXF length limitations

[Eliseo]

Hello

Is there any limitation in the number of vertex or the number of faces when you try to export a mesh at DXF format?

Thanks

[support]

Hello.
Generally there are no such restrictions in CAD Export VCL. We have tested export of Polyface mesh object that includes 14485 vertexes and 20160 edges. The object was imported from AutoCAD DWG (793 KB), can be found on AutoDesk forums. The export result was correct.

Alexander.

[Eliseo]

Hello Alexander,

I'm not asking about limitations at CAD Export VCL, it is about limitations at DXF especifications.

I exported three meshes with a lot of triangles (more than 100.000). Neither Rhino nor Autocad imports correctly this DXF file.

I have been doing some tests from Rhino trying to export those meshes with a lot of triangles and when Rhino reaches at a certain quantity of triangles (or faces) it exports the mesh into 2 meshes. Why is Rhino doing that? Why my exported DXF is not being correctly imported when the amount of triangles or faces is big?

Thanks

[support]

Hello.
There is a known issue about AutoCAD's Polyface mesh vertices limit. Take a look at this page:
http://www.deelip.com/?p=14

The issue is common for other CAD software, so I think Rhino demonstrates the same problem.

Alexander.