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mspieg wrote:
Hi All,I think there is a bug when trying to read a MeshFunction from a file that was generated on a SubMesh. I've attached some python based on the SubMesh demo, that demonstrates the problem. I think the issue is that there is an extra MeshFunction embedded in a SubMesh to describe the "global vertex indices" that gets read instead of the intended mesh-function.
It might be a while before anyone gets to this. We hope to have a new, simple to use bug tracking system (i.e. not Bugzilla) in place soon to keep track of these types of issues, especially since they tend to be forgotten while everyone is on holiday.
On a related note, it's easy enough to extract a SubMesh from a larger Mesh using a MeshFunction, but what is the best way to extract just the piece of a discrete function on the SubMesh, when the Function is originally defined for a Function Space on the larger mesh. (does this make sense?)These issues arise from a multiphysics problem that I'm working with overlapping domains where I basically want to solve an embedded porous media problem on a subdomain of a larger stokes flow (this is slightly different from the fluid-structure demo where the two domains only share a boundary.)
Kent has been working on something like this. Have you looked at demo/function/restriction ? Garth
All help greatly appreciated as always cheers marc p.s. all current dev repositoriesp.p.s. another official release would be great...a lot has changed since 2009-04------------------------------------------------------------------------ ---------------------------------------------------- Marc Spiegelman Lamont-Doherty Earth Observatory Dept. of Applied Physics/Applied Math Columbia University http://www.ldeo.columbia.edu/~mspieg tel: 845 704 2323 (SkypeIn) ---------------------------------------------------- ------------------------------------------------------------------------ _______________________________________________ DOLFIN-dev mailing list DOLFIN-dev@xxxxxxxxxx http://www.fenics.org/mailman/listinfo/dolfin-dev
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