Atanas Pavlov wrote: > Yes, I had not understand the concept of Transfinite grids, it is > exactly what I need. Thank you very much. > I have a few other questions, if someone happens to have an answer to > them :) > > 1) I have not been able to find an Offset command in Gmsh (generate > curve which is offset from another curve by a given distance). Any > suggestions? > > 2) I am considering integrating Gmsh in a simple application, which > generates a certain geometrical configuration and meshes it. I have not > been able to find any example how to do that, my attempts to compile > anything against libGmsh.a (generated by make install-lib) have been > fruitless ( I cannot check the archive content with nm either, it seems > to be archive made of other archives and I do not know how to compile > against it). When I try to compile anything also against the full set of > libraries created in the lib build directory, I get a lot of error > messages about unresolved references. Is there any example anywhere, > which shows how to use Gmsh API to create and mesh geometries?
cf. utils/misc/driver.cpp in the source distribution > > Thanks a lot, > Atanas > > 2008/4/21 Christophe Geuzaine <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>>: > > Atanas Pavlov wrote: > > Hello, > > I am trying to create a mesh for an axisymmetric geometry, which > is relatively simple, defined by a few points, resp curves > connecting them. I would like, however, to perform mapped > meshing where I partition the curves, then use these partitions > on 4-side surface regions to partition the regions, and then > revolve-extrude the mesh around the symmetry axis. As far as I > can see, the first step is currently not possible in GMSH, > because for surface mesh it can only generate triangle mesh (or > extrude 1D mesh, which however is not possible in this case). Is > there any workaround? Is mapped meshing planned to be > implemented in GMSH, and for simple cases like that, can it be a > short term feasible task? > > > Could you use a Transfinite grid like this? > > Point(1) = {0,0,0,0.1}; > Point(2) = {1,0,0,0.1}; > Point(3) = {0,1,0,0.1}; > Point(4) = {3,0,0,0.1}; > Point(5) = {3,3,0,0.1}; > Point(6) = {0,3,0,0.1}; > Line(1) = {3,6}; > Line(2) = {6,5}; > Line(3) = {5,4}; > Line(4) = {4,2}; > Circle(5) = {2,1,3}; > Line Loop(6) = {3,4,5,1,2}; > Plane Surface(7) = {6}; > Transfinite Line {1} = 20 Using Progression 1.2; > Transfinite Line {4} = 20 Using Progression 1./1.2; > Transfinite Line {3,2} = 10 Using Progression 1; > Transfinite Line {5} = 19 Using Progression 1; > Transfinite Surface {7} = {3,6,4,2} Alternated; > Recombine Surface {7}; > > > > Cheers, > Atanas > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > gmsh mailing list > [email protected] <mailto:[email protected]> > http://www.geuz.org/mailman/listinfo/gmsh > > > > -- > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer Science > http://www.montefiore.ulg.ac.be/~geuzaine > <http://www.montefiore.ulg.ac.be/%7Egeuzaine> > > > > > -- > Atanas Pavlov > Luitfriedstr. 18, München 80995 -- Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
