Recreates a TIN file from drawing geometry such as PolyMeshes or 3DFaces.
Keyboard Command: SurTinRec

Procedure:
- Click the button and select the source geometry.
- Optionally enter a description for the surface.
- Click the to designate a drive/path/file for output.
- Choose the button to begin processing.
Notes:
- Not all export formats support a description and the entered value may not be stored.
- The routine does not check for holes in the surface. The absence of geometry can create an invalid surface.