On Nov 16, 2012, at 2:38 AM, Roman Vetter <vette...@ethz.ch> wrote: > Dear libMesh developers, > > I would like to propose the attached patch (against r6373) for the > trunk. It reflects the fact that the term "two-dimensional sphere in > three-dimensional space" is ambiguous: It could be a flat disk, or a > hollow sphere. Both topologies are very relevant in practice, but only > the former is implemented in libMesh. In somy of my simulations, I > also need the latter. > > The patch extends the MeshTools::Generation::build_sphere() function > to optionally build what is called an "icosasphere" (or, more rarely, > "icosphere"). That is, a regularly triangulated 2D spherical mesh, > obtained by iterative refinement of a regular icosahedron. The patch > fits quite nicely into the preexisting code. An icosasphere can be > built by setting the new flag "flat" to false (default true) when > building a 2D mesh in 3D space. > > At the same time, I have also made the Laplace smoothing optional for > build_sphere(). It was previously hard-coded to 2, which is somewhat > ugly in itself, but the actual reason why I generalized it is simply > that one might want to build the exact icosasphere instead of a > smoothed (shrunk) one. > > The API change is fully backward compatible due to the use of default > arguments.
Thank you very much for the contribution and the careful implementation with attention to backwards compatibility. It is in trunk as of r6375. -Ben ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Libmesh-devel mailing list Libmesh-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-devel
