On Sun, Jun 21, 2009 at 11:36:29PM -0600, Bartosz Sawicki wrote:
On 19/06/09 02:53 PM, kent-and@xxxxxxxxx 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
