On 24 Aug 2013, at 21:12, Jeff Baylor <[email protected]> wrote:

> Thanks Christophe, I really appreciate it. I am heading out of town, but may 
> get a chance to test it tomorrow.  If not, it will be a week before I am back 
> to work.  I will also look through the other node ordering.  I think all of 
> the quadratic volumetric elements have different node orders.  If you already 
> tested the tetrahedron, but not the others then I will send you the line of 
> code to reorder the second order prism (C3D15).  I think the others would be 
> fine.
> 

Actually I think only the linear elements have been tested: if you get a chance 
give all the 2nd order Abaqus elements a try...


> If there is anyone on the CalculiX group who gets a chance to download the 
> nightly Gmsh build and test its exporting of the quadratic hex (C3D20), 
> please post if it works for you.  Thanks!
> 
> 
> On Fri, Aug 23, 2013 at 11:33 PM, Christophe Geuzaine <[email protected]> 
> wrote:
> 
> On 25 Jul 2013, at 00:02, Jeff Baylor <[email protected]> wrote:
> 
> > Hello,
> >
> > Has anyone submitted a bug regarding the C3D20 export problem in Gmsh?  (I 
> > am cc'ing the [email protected] in case no one has.)
> >
> > It would be an easy fix if someone wanted to set up a build environment for 
> > Gmsh.  The nodes are not ordered incorrectly.  Looking at th 2.8.2 source, 
> > line 245 of the header file Geo/MHexahedron.h needs to reorder the local 
> > node numbers.  There are examples in the lines above and below.  The local 
> > node coordinates are in the Gmsh and CCX docs.  Double check it, but this 
> > should be correct (these are the comments from my translator):
> >
> >     GMSH Hexahedron20:     CCX C3D20:
> >    4----14----3           4----11----3
> >    |\         |\          |\         |\
> >    | 16       | 15        | 20       | 19
> >    10 \       12 \        12 \       10 \
> >    |   8----20+---7       |   8----15+---7
> >    |   |      |   |       |   |      |   |
> >    1---+-9----2   |       1---+-9----2   |
> >     \  18      \  19       \  16      \  14
> >     11 |        13|        17 |        18|
> >       \|         \|          \|         \|
> >        5----17----6           5----13----6
> >
> >                      CCX: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
> >                     GMSH: 1,2,3,4,5,6,7,8,9,12,14,10,17,19,20,18,11,13,15,16
> >
> > static const int map[20]={0,1,2,3,4,5,6,7,8,11,13, 
> > 9,16,18,19,17,10,12,14,15};
> >
> > Subtract one for Gmsh since its local node numbers start with zero.  Having 
> > Gmsh write the mesh correctly is a much better solution than a translator.
> >
> 
> Hi Jeff - I've committed a patch with your renumbering: can you give it a try?
> 
> Also, please let us know if your see other renumbering problems in the Abaqus 
> export: we have not tested this anything other than forst order 
> triangles/tets...
> 
> Thanks,
> 
> Christophe
> 
> 
> > Best,
> > Jeff
> >
> >
> >
> > On Wed, Jul 24, 2013 at 11:47 AM, Prool <[email protected]> wrote:
> >
> >
> > --- In [email protected], "gmazanakis" <gmazanakis@...> wrote:
> > >
> > > Mr Prool
> > >
> > > thank you very much for your help but once again unfortunately it does 
> > > not work on my pc neither on my laptop.
> > >
> > > Now it does not appear any error, the command window opens but it closes 
> > > immidietly.
> > >
> > > Any help with this?
> > >
> > > I run the exe for my windows deskop maybe it is a problem of the windows 
> > > 7 which I use.
> > >
> >
> > This is a program written in a hurry, it works in command line mode.
> >
> > Instruction:
> >
> > For example, You have 1.INP file you want to convert.
> >
> > 1. Create a directory on disk C \WORKDIR
> >
> > 2. There are copying my program KONVERTOR.EXE (take KONVERTOR.EXE from 
> > archive, from directory DEVCPP)
> >
> > 2a. There are copying file 1.INP
> >
> > 3. Windows menu click: "START" - "RUN" - "CMD", press ENTER key
> >
> > 4. Type the command:
> >
> > converter 1.inp 2.inp
> >
> > press ENTER key
> >
> > 5. In the catalog converted file appears 2.INP
> >
> > Prool
> > www.calculixforwin.com
> >
> >
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> >
> > --
> >
> > Jeff Baylor
> > -----------------------------------
> > Convergent Mechanical Solutions LLC
> > web:   http://bConverged.com
> > email: [email protected]
> > phone: 206.755.6199
> > _______________________________________________
> > 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
> 
> 
> 
> 
> 
> 
> -- 
> 
> Jeff Baylor
> -----------------------------------
> Convergent Mechanical Solutions LLC
> web:   http://bConverged.com
> email: [email protected]
> phone: 206.755.6199
> _______________________________________________
> 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




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