[Gmsh] Definig a surface that combine existing surfaces.

[Christophe Geuzaine]

Maka Mohu wrote:
> I'm looking for a surface command that can combine already existing 
> surfaces.
> 
> Motivation:
> 
> while writing a gmsh script to generate a mesh for complex geometry, it 
> is useful to separate it into functions A problem that I face now is as 
> follows:
> 
> Assume that you have functions F1 ... F3
> each of them generate the geometry for a complex surface S1 ... Sn by 
> building each surface out of a group of small surfaces a1 ...an. What 
> you would like to have is a feature that allows each function to group 
> all the defined surfaces a1 ... an in one surface A that will by used by 
> the rest of the program. If we do not have a way for this thin any 
> modification in function F1 will have consequences on the rest of the 
> program which harms the modularity of the solution. For this one needs:
> 
> 1) a surface command that can combine already existing surfaces.

> 
> according to my understanding: I can not use surface loops for this, 
> since loops has to build a closed volume. I also can not use Physical 


Store the line numbers or the line loop numbers in an array, and define 
the surfaces using this array?





> surface for this since it is not accepted by Surface loop command. Thanks.
> 
> Best regards,
> Maka.
> 
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine