Of course. Here it is. BTW, I use gmsh 2.2.6 on a WIN XP SP 2, Pentium 4, 3.2 GHz, 1.5 GB RAM computer.
If I could force gmsh not to ignore the cl of the spline control points, it would probably be faster for such a case (if it wouldn't crash). Is there a trick to do that? Would it help to put isolated points with the desired cl at the desired location? Thank you and best regards, Matthias > -----Original Message----- > From: Christophe Geuzaine [mailto:[email protected]] > Sent: Monday, December 15, 2008 1:07 PM > To: Zenker, Dr. Matthias > Cc: [email protected] > Subject: Re: [Gmsh] lower limit for characteristic length > > Zenker, Dr. Matthias wrote: > > Hi there, > > > > the question remains: is there a lower limit for the characteristic > > length cl, and why does gmsh crash when some points have a small cl? > > It shouldn't crash, except when "cl" divided by the overall > size of model is getting close to machine accuracy (or more > accurately, close to the value of the random pertutbation > used in the meshing algorithms, which is 1e-9 by default). > > Could you send a file that shows the problem? > > > > I would like to add another one: Is it possible that gmsh > ignores the > > cl of the control points of a spline except for the first and last > > one? If > > That's what Gmsh does: the cls of the control points are ignored. > > > > > so, is there a way to force gmsh to take into account the cl of the > > intermediate points also? > > > > Best regards, > > > > Matthias > > > > > -------------------------------------------------------------- > ---------- > > *From:* [email protected] [mailto:[email protected]] *On > > Behalf Of *Zenker, Dr. Matthias > > *Sent:* Monday, November 17, 2008 10:49 AM > > *To:* [email protected] > > *Subject:* Re: [Gmsh] lower limit for characteristic length > > > > I was wrong, it crashes also for cl=0.0005 (but after a > looong time, > > and with a runtime error). > > > > > -------------------------------------------------------------- > ---------- > > *From:* [email protected] > [mailto:[email protected]] *On > > Behalf Of *Zenker, Dr. Matthias > > *Sent:* Monday, November 17, 2008 10:16 AM > > *To:* [email protected] > > *Subject:* [Gmsh] lower limit for characteristic length > > > > Hi, > > > > I wonder if there is a lower limit for the characteristic > > length. I have a rather simple 2D geometry, and if > I set the cl > > for just two points to 0.0001, gmsh crashes during > the meshing > > after having given the error message "3 identical points in > > Qtest". The .gmsh-errors file is not written. With > cl=0.0005, > > this does not happen (but it takes veeery long to > compute the mesh). > > > > Best regards, > > > > Matthias > > > > > ---------------------------------------------------------------- > > ERBE Elektromedizin GmbH > > Dr.rer.nat. Matthias Zenker > > Dipl. Phys. > > Grundlagenentwicklung Technologie > > Waldhoernlestrasse 17 > > D-72072 Tuebingen > > Tel.: + 49 (0) 7071 - 755 226 > > Fax: + 49 (0) 7071 - 755 5226 > > E-Mail: <_mailto:[email protected]_> > > URL: _http://www.ERBE-med.de_ > > > > ---------------------------------------------------------------- > > > > > > > > > > > > ERBE Elektromedizin GmbH > > Firmensitz: 72072 Tuebingen > > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > > Registergericht: Stuttgart HRB 380137 > > > > > > > > > > > > > > ERBE Elektromedizin GmbH > > Firmensitz: 72072 Tuebingen > > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > > Registergericht: Stuttgart HRB 380137 > > > > > > > > > > > > > > ERBE Elektromedizin GmbH > > Firmensitz: 72072 Tuebingen > > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > > Registergericht: Stuttgart HRB 380137 > > > > > > > > > ---------------------------------------------------------------------- > > -- > > > > _______________________________________________ > > gmsh mailing list > > [email protected] > > http://www.geuz.org/mailman/listinfo/gmsh > > > -- > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer > Science http://www.montefiore.ulg.ac.be/~geuzaine > _____________________________________________________________________ ERBE Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137
small_cl.geo
Description: small_cl.geo
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