Or you could also generate the meshes directly from the .geo file: here's how to generate both nested or simply refined meshes (run "gmsh file.geo -"):
lc = 0.5; Point(1) = {0, 0, 0, lc}; Point(2) = {-0.5, -0, 0, lc}; Point(3) = {0, -0.5, 0, lc}; Point(4) = {0, 0.5, 0, lc}; Point(5) = {0.5, -0, 0, lc}; Circle(1) = {2, 1, 3}; Circle(2) = {3, 1, 5}; Circle(3) = {5, 1, 4}; Circle(4) = {4, 1, 2}; Line Loop(5) = {4, 1, 2, 3}; Plane Surface(6) = {5}; Mesh.Algorithm = 6; // uncomment this to not put points on actual boundary // Mesh.SecondOrderLinear = 1; Mesh 2; Save "initial.msh"; For i In {1:5} RefineMesh; Save Sprintf("nested_%g.msh", i); EndFor For i In {1:5} Mesh.CharacteristicLengthFactor = 1 / 2^i; Mesh 1; Mesh 2; Save Sprintf("refined_%g.msh", i); EndFor > On 10 Jan 2017, at 19:42, Jeremy Theler <jer...@seamplex.com> wrote: > > What about this? > > gtheler@tom:~/run$ cat basic.geo.m4 > Point(1) = {0, 0, 0, lc}; Point(2) = {-0.5, -0, 0, lc}; > Point(3) = {0, -0.5, 0, lc}; Point(4) = {0, 0.5, 0, lc}; > Point(5) = {0.5, -0, 0, lc}; > > Circle(1) = {2, 1, 3}; Circle(2) = {3, 1, 5}; > Circle(3) = {5, 1, 4}; Circle(4) = {4, 1, 2}; > > Line Loop(5) = {4, 1, 2, 3}; > Plane Surface(6) = {5}; > gtheler@tom:~/run$ for i in `seq 1 10`; do m4 -Dlc=$i/10 basic.geo > > basic-$i.geo; gmsh -2 basic-$i.geo; done > > > -- > Jeremy Theler > www.seamplex.com > > > > On Tue, 2017-01-10 at 15:57 +0000, Al wrote: >> Hi, >> >> >> I'd like to have a script that loads the file >> >> "mybasidgeo.geo" and generates (and stores) >> >> a sequence of meshes via uniform refinement. >> >> In Section 3.2 of the manual it is mentioned that something >> >> like this should be possible, but in the second line of Section 6.3 >> >> it is written that "The actual mesh “actions ... cannot be specified >> in the script files" >> >> >> This is a bit confusing. Shall I maybe use a makefile? How? >> >> >> Many thanks >> >> Alberto >> >> P.s.: >> >> >> >> The content of "mybasidgeo.geo" could be something like: >> >> Point(1) = {0, 0, 0, 1.0}; Point(2) = {-0.5, -0, 0, 1.0}; >> Point(3) = {0, -0.5, 0, 1.0}; Point(4) = {0, 0.5, 0, 1.0}; >> Point(5) = {0.5, -0, 0, 1.0}; >> >> Circle(1) = {2, 1, 3}; Circle(2) = {3, 1, 5}; >> Circle(3) = {5, 1, 4}; Circle(4) = {4, 1, 2}; >> >> Line Loop(5) = {4, 1, 2, 3}; >> Plane Surface(6) = {5}; >> _______________________________________________ >> gmsh mailing list >> gmsh@onelab.info >> http://onelab.info/mailman/listinfo/gmsh > > > _______________________________________________ > 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 Free software: http://gmsh.info | http://getdp.info | http://onelab.info _______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh