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<TITLE>RE: [Gmsh] Hybrid mesh and combine triangles in quadrilaterals</TITLE>
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<P><FONT SIZE=2>You are right, it would be nice if Gmsh could create automatic hex-dominant meshes from CAD files... :)<BR>
<BR>
<BR>
Billy.<BR>
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-----Mensagem original-----<BR>
De: gmsh-bounces@geuz.org em nome de Durufle Marc<BR>
Enviada: ter 21-10-2008 11:21<BR>
Para: gmsh@geuz.org<BR>
Assunto: [Gmsh] Hybrid mesh and combine triangles in quadrilaterals<BR>
<BR>
Hi,<BR>
I have two questions :<BR>
<BR>
1- How do you create hybrid meshes in 2-D (quad-dominant with a few<BR>
triangles) ?<BR>
Until now, I am using the Recombine option, but often I get non-convex<BR>
quadrilaterals.<BR>
In the picture attached to this message, you can see that two elements<BR>
(in black) are non-convex<BR>
quads and that's a problem ... So, often I change the characterisc<BR>
length in the hope that I will have only<BR>
fine quadrilaterals. Is it possible to require that all quadrilaterals<BR>
are convex ?<BR>
<BR>
2- In 3-D, when I try "Recombine Volume", it doesn't work. So, how is it<BR>
possible with gmsh<BR>
to create 3-D hexahedral-dominant meshes (with some tets, pyramids and<BR>
wedges) ?<BR>
<BR>
Thank you for your help.<BR>
<BR>
PS : I am using gmsh 2.24<BR>
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<BR>
<BR>
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