planar boundary faces

Martin80 · March 10, 2011, 12:49

Hi,
I am creating a polyhedral Mesh form a stl file in ccm+. The boundary faces of the resulting mesh are not planar. Is there a tolarance parameter somewhere to restrict the boundary faces to be planar?
Maybe someone has a hint,
Martin.

alastormoody11 · March 14, 2011, 02:48

Since your mesh is not respecting the boundary surfaces, you might try first creating a decent surface mesh, not using the initial STL "surface mesh" and then use the surface mesh to create the volume mesh, thereby respecting the surface.

If computational expense is not an issue you and the above does not work a crude way to do it would be to drastically reduce the surface mesh size and convert the transition to very fast.

March 10, 2011, 12:49	planar boundary faces	#1
Martin80 Member Join Date: Aug 2010 Posts: 31 Rep Power: 15	Hi, I am creating a polyhedral Mesh form a stl file in ccm+. The boundary faces of the resulting mesh are not planar. Is there a tolarance parameter somewhere to restrict the boundary faces to be planar? Maybe someone has a hint, Martin. Last edited by Martin80; March 11, 2011 at 10:20.

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March 14, 2011, 02:48		#2
alastormoody11 Senior Member Join Date: Jun 2009 Posts: 100 Rep Power: 16	Since your mesh is not respecting the boundary surfaces, you might try first creating a decent surface mesh, not using the initial STL "surface mesh" and then use the surface mesh to create the volume mesh, thereby respecting the surface. If computational expense is not an issue you and the above does not work a crude way to do it would be to drastically reduce the surface mesh size and convert the transition to very fast.