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Le mardi, novembre 20, 2018 4:58 AM, Abiti Adili <[email protected]> a écrit :
> I have created an unstructured tetrahedral mesh on a unit cube with a sphere
> in it by using graphical user interface.
> I was able to save the mesh for the whole cube as a msh file and read it into
> Matlab using load_gmsh2 function.
>
> I need the portions of the mesh for the sphere as well as the one for outside
> the sphere separately read into Matlab for my problem.
>
> I have read in one posting that you can "turn off" the mesh information for a
> desired subdomain but having troubles figuring out how.
>
> I would greatly appreciate if someone could explain or give directions on
> what needs to be done for saving the msh file only for a desired subdomain.
One approach is to split the input files. Put everything quoted into one file,
say "geometry.geo", then Include [0] that in each of two others in which the
desired subsets of physical entities [1] are defined.
[0]
http://gmsh.info/doc/texinfo/gmsh.html#index-Include-char_002dexpression_003b
[1]
http://gmsh.info/doc/texinfo/gmsh.html#Elementary-entities-vs-physical-groups
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