Hi Hetenyi, If I understand you correctly I believe it is possible to do this in Gmsh. You can embed fixed points in surfaces easily. Forcing a surface to be part of a sphere is more involved but if the surface has three or four boundary lines it might be easy to used RuledSurface.
Regards, Dave On Apr 1, 2015, at 6:55 AM, Hetényi György <[email protected]<mailto:[email protected]>> wrote: Good afternoon, I am new to GMSH and I have only spent about 10 minutes looking at the website and the manual, so please excuse me if my question is too naive. I would be interested to know whether and how GMSH could be used for the following problem: -there is a region defined on the surface of the Earth (given as a series of latitude-longitude pairs), -the goal is to make a roughly equally spaced mesh on this spherical region (characterized with one parameter, average distance between nodes), -there are already fixed nodes (initial mesh?) within this region that the final mesh should contain exactly (the edge of the surface does not have constrained points). Any kind of help to start with the above problem would be appreciated. With best regards, György Hetényi _________________________________ Swiss Seismological Service ETH Zürich Dr György Hetényi NO H 63 Sonneggstrasse 5 8092 Zürich Switzerland phone: +41-44-6324381; fax: -6331065 www.seismo.ethz.ch/research/groups/stek/people/hetenyig<http://www.seismo.ethz.ch/research/groups/stek/people/hetenyig> This e-mail is covered by the Electronic Communication Privacy Act, 18 U.S.C. Section 2510-2521 and may be legally privileged. If you have received this transmission in error, please notify the original sender immediately by return e-mail or by telephone at the telephone number provided above and delete/trash the original message from your system. Thank you for your assistance. The information contained herein is confidential information provided only for the use of the individual or entity for whom it was intended. If the reader of this message received it in error, is not the intended recipient, or if an attachment is made in error, the reader is hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. _______________________________________________ gmsh mailing list [email protected]<mailto:[email protected]> http://www.geuz.org/mailman/listinfo/gmsh This e-mail is covered by the Electronic Communication Privacy Act, 18 U.S.C. Section 2510-2521 and may be legally privileged. If you have received this transmission in error, please notify the original sender immediately by return e-mail or by telephone at the telephone number provided above and delete/trash the original message from your system. Thank you for your assistance. The information contained herein is confidential information provided only for the use of the individual or entity for whom it was intended. If the reader of this message received it in error, is not the intended recipient, or if an attachment is made in error, the reader is hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited.
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