[Gmsh] Mesh with quadrilaterals exclusively
Fernando Cosso
ferdemza at gmail.com
Wed Dec 1 15:07:19 CET 2010
Hi all,
I want Gmsh to use quadrilaterals to mesh, is that possible?
I am calling Gmsh from my fortran program like this:
r = system('gmsh\gmsh out\Geometria.geo -2 -option Isoparametric.opt
-clscale '//trim(Escala)//' -o out\MeshI_'//trim(Escala)//'.msh')
*Where*
Escala is a character variable that I use to change the refinement of the
mesh, typical value: Escala = '.1'
*Geometria.geo*
Point(1) = { 0.0000000000000000E+00, 0.0000000000000000E+00,
0.0000000000000000E+00, 0};
Point(2) = { 2.0000000000000000E+01, 0.0000000000000000E+00,
0.0000000000000000E+00, 0};
Point(3) = { 2.0000000000000000E+01, 1.0000000000000000E+01,
0.0000000000000000E+00, 0};
Point(4) = { 0.0000000000000000E+00, 1.0000000000000000E+01,
0.0000000000000000E+00, 0};
Point(5) = { 2.0000000000000000E+01, 1.0000000000000000E+00,
0.0000000000000000E+00, 0};
Point(6) = { 1.9000000000000000E+01, 0.0000000000000000E+00,
0.0000000000000000E+00, 0};
Line(1) = {1, 4};
Line(2) = {4, 3};
Line(3) = {3, 5};
Line(4) = {6, 1};
Circle(5) = {5, 2, 6};
Line Loop(7) = {2, 3, 5, 4, 1};
Plane Surface(7) = {7};
*Isoparametric.opt*
Mesh.Algorithm = 5;
Mesh.CharacteristicLengthExtendFromBoundary = 0;
Mesh.CharacteristicLengthFromPoints = 0;
Mesh.RecombineAll = 1;
The resultant mesh has triangles and quadrangles mixed, I want quadrangles
exclusively.
Any help is greatly appreciated
Best Regards
Fer
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