Hi Jeremy, Thanks for directing me to the documentation. I can see my first question answered there. But I still can't see a clear way to create a mesh like this:
If I'd like to mesh a box in this way: the surface closed to the eight corners (for example, distance=1) need to be densely meshed (lc0), other part of the surface needs to be meshed with lc1. Inside the volume, it can be meshed as coarse as possible. Is there a way to do that in Gmsh? ( More generally, Can I define the surface mesh density and volume mesh density separately? Thank you, Tian On Sat, May 30, 2020 at 3:35 AM Jeremy Theler <[email protected]> wrote: > http://gmsh.info/doc/texinfo/gmsh.html#Specifying-mesh-element-sizes > > On Sat, 2020-05-30 at 00:21 -0700, Tian Xia wrote: > > Hi Gmsh developers, > > Thank you for developing this extremely useful tool. Recently I have > encountered a couple of problems about generating 3D non-uniform mesh: > > 1. If I define a background (for example threshold) field and define the > lc for an object using "Characteristic Length{ PointsOf{Volume{1};} } = > lc;", the mesh size in the volume 1 will have two mesh size definitions. > How will Gmsh treat this this? Will it just use the smaller lc or overwrite > one of these? > > 2. If I'd like to mesh a box in this way: the surface closed to the eight > corners (for example, distance=1) need to be densely meshed (lc0), other > part of the surface needs to be meshed with lc1. Inside the volume, it can > be meshed as coarse as possible. Is there a way to do that in Gmsh? > > Thank you for your help! > > Bet regards. > Tian > > _______________________________________________ > > gmsh mailing list > > [email protected] > > > http://onelab.info/mailman/listinfo/gmsh > > > _______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh > -- Tian
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