Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
The essential is that both are synchronized, no matter how it is implemented in detail...
Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
Thanks for transferring me to this link since I had only searched the external tools forum. I want to add that
Gmsh allows one to save its mesh in .unv format and that one can then do
Elmergrid 8 2 filename
But,
Elmergrid 14 2 filename also exists which implies Elmer can understand some .msh format produced by Gmsh
The question is which ? version 1 or 2 ? Both ?
Thank you
Marc
Gmsh allows one to save its mesh in .unv format and that one can then do
Elmergrid 8 2 filename
But,
Elmergrid 14 2 filename also exists which implies Elmer can understand some .msh format produced by Gmsh
The question is which ? version 1 or 2 ? Both ?
Thank you
Marc
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Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
Hi
Basically there is a separate reader for 1,2,4 and 4.1. This does not mean that they would always work. Especially the v. 4 is significantly more complex and features may be missing.
-Peter
Basically there is a separate reader for 1,2,4 and 4.1. This does not mean that they would always work. Especially the v. 4 is significantly more complex and features may be missing.
-Peter
Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
I noticed that Elmergrid ignores the Physical Curve and Physical Surface lines in the .geo file. Which means that (for 2D) in the .sif, we have to concatenate the desired curves under
Boundary Condition i
Target Boundaries (n) = .....
and the desired surfaces under
Body i
Target Bodies (n) = .....
I also saved the mesh from Gmsh into a .unv file format because with the .msh file format (version 2), Elmergrid renumbers the boundaries and in addition created boundaries that were nonexistent in the .geo file
Have a nice week-end
Boundary Condition i
Target Boundaries (n) = .....
and the desired surfaces under
Body i
Target Bodies (n) = .....
I also saved the mesh from Gmsh into a .unv file format because with the .msh file format (version 2), Elmergrid renumbers the boundaries and in addition created boundaries that were nonexistent in the .geo file
Have a nice week-end
Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
I'll take it back. Elmergrid does not know anything about the .geo file in Gmsh. It is up to the .msh file of Gmsh to provide it with the actual physical element numbers. This can be done in Gmsh by simply exporting to .msh format version 2 and NOT checking saving all elements. What happens then is that only the physical element numbers are saved (if any are mentioned in the .geo script). These numbers can then be observed in the mesh.boundary and mesh.elements files created by Elmergrid.
The Target Boundaries (Bodies) of the .sif then only need to refer to those physical curve (surface) numbers.
So again apologies are due from me for misleading everybody.
The Target Boundaries (Bodies) of the .sif then only need to refer to those physical curve (surface) numbers.
So again apologies are due from me for misleading everybody.