[Gmsh] GMSH - excluding some common nodes from Meshing

[Christophe Geuzaine]

On 14 Oct 2012, at 05:04, koushik gattu <koushikgattu at gmail.com> wrote:

> Hello,
> 
> Recently, I have started using GMSH for my project where i need to mesh a simple geometry and read its nodes using Matlab.
> 
> I have everything working except some issues with the meshing..
> 
> My Geometry is very simple: I have circle inside a rectangle..I have defined plane surface and physical groups for this structure. I would like to know the list of nodes on the boundary of rectangle and inside rectangle(but outside circle)..
> 
> I noticed there are some common nodes for both the structures..is there any way in Gmsh to not to have common nodes?
> 

No, Gmsh actually tries very hard to have these nodes on the curves be shared by the two surfaces :-)

At the moment we never generate duplicate mesh vertices.

> I have attached my msh and geo file to this email..
> 
> Thank you so much in advance.
> 
> Thank you,
> K
> 
> 
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine