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[Neilen Marais <question150226@xxxxxxxxxxxxxxxxxxxxx>]

New question #150226 on DOLFIN:
https://answers.launchpad.net/dolfin/+question/150226

Hi,

Is there a way I can access mesh regions defined in a gmsh mesh? For instance, if I define a .geo file with labled physical volumes:

....
Volume(25) = {24};
Surface Loop(26) = {14, 10, 12, 17};
Volume(27) = {26};
Physical Volume ( 1000 ) = { 25 };
Physical Volume ( 2000 ) = { 27 };

with the resulting .msh file:

$Elements
10
1 4 3 1000 25 0 1 9 6 10
....
5 4 3 1000 25 0 10 6 2 8
6 4 3 2000 27 0 6 9 3 7
.... 
10 4 3 2000 27 0 6 9 7 8
$EndElements

IOW, tets 1 through 5 have label 1000, and 6 through 10  has label 2000.

After putting the .msh file through dolfin-convert the label data seems to be lost. Is this simply a limitation of dolfin-convert not supporting the gmsh feature, or does the dolfin mesh type not support labels of such a kind?  

Thanks
Neilen





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