On Sun, Jun 21, 2009 at 11:36:29PM -0600, Bartosz Sawicki wrote: > On 19/06/09 02:53 PM, kent-...@simula.no wrote: > > When using VMTK the boundary indicators are stored as a set of arrays > > with names > > boundary facet cells, > > boundary facet numbers > > boundary indicators > > The two first arrays are used to find the global facet numbers. > > The function computes a mesh function based on these arrays. > > > > This was what Anders prefered since VMTK does not now anything > > about the global numbering of facets in Dolfin (without linking it into > > Dolfin). > > > > This is not a VMTK specific problem, but I do think VMTK is the only > > mesh-generator > > that let you store boundary indicators at the moment. I guess we should add > > this to NetGen as well, both Hans Petter Langtangen and Douglas Arnold has > > bugged > > me about this the last few days. > > I'm every day user of this functionality. I use Netgen generated models, > but also other software which add boundary indicators to existing > meshes. Netgen supports boundary indicators quite well, both by geo > files, and by GUI. I don't understand what you want to add?
Is it possible to set DOLFIN boundary indicators from Netgen? I didn't know. Meshing is a problem for us. I don't know what the long-term goal is. Netgen is good but it would be nice if the interface could be updated to a modern toolkit instead of Tk. One option could be to add meshing capabilities to MeshBuilder (using an external library like Netgen). I'd like a tool where I can 1. draw simple domains in 2D / 3D 2. import CAD geometry 3. set boundary indicators 4. create and export Mesh in DOLFIN XML -- Anders
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