Guido Valerio wrote:
Dear all,
i'm new to Gmsh and i'm trying to mesh a simple rectangle with a wire
attached to it, and then writing everything in a ".unv" file (i'm
attaching both the .geo, .msh and .unv file). I have problems in
performing some operations.
1) Is it possible to require that two opposite sides of the rectangle be
meshed with the same nodes (apart a translation?). For example, side x=0
has nodes (0, y_n, 0), side x=a has nodes (a, y_n, 0). If, so, is it
possible to require this for two opposite faces of a solid, e.g. side
x=0 has nodes (0, y_n, z_m), side x=a has nodes (a, y_n, z_m)?
Hi Guido,
yes, it is very simple with extrusion (Extrude and Transfinite commands). See
http://www.geuz.org/gmsh/doc/texinfo/gmsh-full.html#SEC40 and
http://www.geuz.org/gmsh/doc/texinfo/gmsh-full.html#SEC45
and also the three first tutorials:
http://www.geuz.org/gmsh/doc/texinfo/gmsh-full.html#SEC64
2) Also, is it possible to require a symmetric mesh with respect to a
point, one or more lines, or one or more surfaces (on a symmetric
object, of course)?
It depends on your geometry, but it should be doable with extruded meshes.
3) Is it possible to set different colors on different elements of the
mesh?
No. You can set the color of different parts of the mesh, but not on a per
element basis.
http://www.geuz.org/gmsh/doc/texinfo/gmsh-full.html#SEC46
Color color-expression { Point | Line | Surface | Volume { expression-list };
... }
Sets the mesh color of the entities in expression-list to color-expression.
Cheers,
Dave
--
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
Fax: +32 (0)4 366 29 10
WWW: http://hpc.montefiore.ulg.ac.be/
Agenda: http://www.google.com/calendar/embed?src=david.colignon%40gmail.com
I need to use color A for all the 2-node lines, color B for all
the triangles not touching side x=0 of the rectangle, color C for all
the triangles touching side x=0 of the rectangle. In doing this, I have
two problems:
3a) I cannot assign different colors to the different triangles, and
3b) I cannot save the colors of the elements in the ".unv" file. I get
always a '7' in the place of the color for all the elements. I would
need to change that number.
Sorry if some of the points are trivial, or too weird to have them
implemented.
Thank you very much for the attention and congratulation for designing
such a useful and easy-to-use software.
Guido
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