On Mon, Jun 22, 2009 at 10:08:45AM +0100, Garth N. Wells wrote: > Anders Logg wrote: > > 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 > > > > How many of these steps can gmsh perform?
gmsh also looks like it's in need of a new interface. Does anyone know if there are plans to improve it? -- Anders
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