> On 20 Mar 2020, at 22:54, Xingsheng Sun <xssu...@gmail.com> wrote: > > Dear Christophe and Winfried, > > Thank you so much for your help. The problem has been solved. > > The reason is that LS-DYNA can only read 16 digits, while in the output file > of Gmsh some numbers have 17 digits. For example, in my previous email > 0.012499999999976 has 17 digits including the dot, which cannot be read by > LS-DYNA. I also found that the 17-digit numbers only happen when its value is > close to zero. Then I moved the entire mesh by 1 in all x-, y- and > z-coordinates. Then the output file by Gmsh works well for LS-DYNA. >
Can you give the latest dev snapshot a try and let us know if it fixes the problem? Thanks, Christophe > Hope the solution helps the people who might have the same problem. > > Best wishes, > Xingsheng > > On Fri, Mar 20, 2020 at 4:23 AM Winfried Boxleitner > <winfried.boxleit...@ait.ac.at> wrote: > dear Christophe, > my awk-script is meant as an example only, howto modify the msh-file > after creation. for users not familiar to commandline tools however, this > is not useful. I personally have no problems with the current format. > remark: until now I only used msh version 2, because this can be used > together with FreeFem. > > > Winfried > > On Fri, 20 Mar 2020, Christophe Geuzaine wrote: > > > > > > >> On 20 Mar 2020, at 07:59, Winfried Boxleitner > >> <winfried.boxleit...@ait.ac.at> wrote: > >> > >> dear Xingsheng, > >> if you are used to commandline you can modify my awk-script to fit your > >> needs. > >> > >> to format the mesh file use the following command: > >> awk -f pretty_print_msh.awk input.msh > output.msh > >> > > > > Do you mean that we should use %12.6g in our KEY export? > > > > Christophe > > > > > >> the awk-script is attached > >> > >> best regards, > >> Winfried > >> > >> > >> On Thu, 19 Mar 2020, Xingsheng Sun wrote: > >> > >>> Hello All, > >>> > >>> I am using Gmsh to generate the mesh file for Ls-dyna. The problem is that > >>> in the key-format file generated by Gmsh, the coordinates of nodes have > >>> too > >>> many digits. For instance, in the node information: > >>> > >>> *NODE > >>> 22, 0, 0.012499999999976, -0.001 > >>> 23, 0, 0.02499999999995, -0.001 > >>> 24, 0, 0.037499999999926, -0.001 > >>> 25, 0, 0.049999999999907, -0.001 > >>> > >>> the y-coordinates of nodes 22-25 have 15 digits that cannot be read by > >>> Ls-dyna. > >>> > >>> So could any people shed light on how to reduce the number of digits in > >>> Gmsh? I am using command lines, not GUI. Thank you so much in advance. > >>> > >>> Best regards, > >>> Xingsheng > >>> > >> > >> > >> ______________________________________________________________________ > >> / > >> | Winfried Boxleitner > >> | Scientist > >> | AIT Austrian Institute of Technology GmbH > >> \______________________________________________________________________<pretty_print_msh.awk>_______________________________________________ > >> gmsh mailing list > >> gmsh@onelab.info > >> http://onelab.info/mailman/listinfo/gmsh > > > > — > > Prof. Christophe Geuzaine > > University of Liege, Electrical Engineering and Computer Science > > http://www.montefiore.ulg.ac.be/~geuzaine > > > > > _______________________________________________ > gmsh mailing list > gmsh@onelab.info > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh
