[Gmsh] crash when meshing 'cleaned' STEP file

[Smith, Mark]

Hi Matthias
Have you had a look at MeshLab http://meshlab.sourceforge.net/ which
might enable you to do what you want if you export in stl format first?
 
Regards
mark

________________________________

From: gmsh-bounces at ace20.montefiore.ulg.ac.be
[mailto:gmsh-bounces at ace20.montefiore.ulg.ac.be] On Behalf Of Zenker,
Dr. Matthias
Sent: 08 April 2011 14:19
To: gmsh at geuz.org
Subject: [Gmsh] crash when meshing 'cleaned' STEP file



Hi, 

I am working on a method to 'clean' STEP files in order to get a
conformal mesh between adjacent bodies. If I get it to work, I will be
happy to share it, but I am still struggling at the moment...

My problem is that gmsh will not mesh my 'cleaned' geometry. What I try
to do is to determine the surfaces and lines which are identical, delete
the unnecessary ones and redefine the volumes using the remaining
surfaces. I use an external tool (scilab script), so I did not modify
gmsh. Please find in the attachment my test geometry in STEP format and
the geo file I want to use for the 3D mesh. gmsh does the 2D and 2D
meshing without problems, but crashes during the 3D mesh (either I get a
net crash, or gmsh does not respond any more after some time, and I have
to kill it). Did I do something wrong when generating the geo file? I
would be very happy if someone could have a look on my case.

I am using gmsh 2.5.1svn under Windoze XP. 

Thank you for any hint, 

Matthias 

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ERBE Elektromedizin GmbH 
Dr.rer.nat. Matthias Zenker 
Dipl. Phys. 
Grundlagenentwicklung / Fundamental Development 
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