Hi Juan, This is expected: to get a 3D mesh that satisfies the Delaunay criterion we would need to modify the surface mesh - this is something we try hard to avoid.
Christophe > On 14 Jun 2020, at 20:17, Juan Sanchez <juan.e.sanc...@gmail.com> wrote: > > Hello, > > I am having a hard time getting a 3d delaunay mesh, so that the circumcenters > of the tetrahedra are inside the element. > > In my simulator, I am seeing that about 50% of the elements are not delaunay > if: > Mesh.CharacteristicLengthExtendFromBoundary = 1; > > and about 90% are not Delaunay if: > Mesh.CharacteristicLengthExtendFromBoundary = 0; > > Is there a way to improve this when running the tool from the command line or > with an option in the geo file? > > I am using: > /Applications/Gmsh.app/Contents/MacOS/gmsh -format msh2 -3 3dblock.geo > > with version 4.5.6 on macOS 10.14.6 (Mojave). > > Regards, > > Juan > <3dblock.geo>_______________________________________________ > gmsh mailing list > gmsh@onelab.info > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh