CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products []
CZ | EN | DE
Login or
  Visitors: 5403

CAD tip CAD tip # 7216:

Question CAD 
 %  platform  category 
Q - question

How to use 3DFACEs as a definition for terrain surface?

A - answer If you need to create a terrain model (DTM) from a source drawing containing 3DFACE entities, you may need to first convert these entities to another object type.

With the LISP utility 3DF2L (see you can convert (explode) 3D faces to 3D lines (LINE), which can be used as definition data for computing or analysis of terrain surfaces.

100% *  CAD 
13.2.2010    9241×  
applies to: Civil 3D 2010 · Civil 3D 2009 · AutoCAD ·

See also:
Tip 12129:Atypical use of meshing for tiling a closed shape.
Tip 11311:Importing STL files directly into AutoCAD - STLin.
Tip 11072:How to make an interference line from 3D Faces?
Tip 11054:Difference volume (3D solid) between two TIN surfaces (sets of coordinates)
Tip 10682:Automatic classification of drawing objects by their properties.

Back   All CAD Tips

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link: CAD Forum - tips, utilities, blocks for Autodesk products
CAD:    OS:    Categ: 
Text:  FAQ glossary   

Simply link AutoCAD LT blocks to Excel table data.
Excellink LT 2006 More info

Please use these tips at your own risk.
CAD Studio is not responsible for possible problems that may occur as a result of using any of these tips.