On Mar 19, 2007, at 7:23 PM, Daniel Wheeler wrote:
I am not sure whether the extruder can create layers. Jon,
can the extruder create layers or is it just one layer as used for
the spherical problem? Looking at the code it only seems to
be one layer. I imagine this could be extended to multiple layers
without too much difficulty.
extruder is really a misnomer. All that script does is dilate about
the origin. It'll make a mess if your mesh isn't more or less
centered on the origin, and Charless anisotropic cells will be
somewhat distorted, even if their geometric center is at the origin.
2) The other option would be to create the volume objects in gmsh
and mesh it directly. Actually, this may be the more straight forward
than option 1. The GmshImporter3D should do the trick once the
mesh has been created.
If you conclude that (3) isn't acceptable, I'd do (2). In general,
gmsh does a great job of generating a mesh. The sphere problem that
we did (and that Charless is doing) is kind of weird and we never
figured out how to make a shell in gmsh with the proper connectivity
all the way around. For a globally convex mesh that just has
different domains within it, I think gmsh would be just fine.
