[Gmsh] anisostropic meshing / bamg algorithm

[Martin Vymazal]

Hello Matthias,

 you can use the bamg algorithm by calling 'gmsh -2 -algo bamg my_file.geo' 
from command line. For 3d anisotropic mesh, you do the same with '-3 -algo 
mmg3d'. 

You need to supply a mesh size field which will tell the anisotropic algorithm 
in which direction to refine the mesh.

Best regards,

   Martin Vymazal


On Thursday 16 February 2012 10:56:06 Zenker, Dr. Matthias wrote:

Hi,
 
does anyone have an answer to the question below?
 
It was said that an anisotropic mesh can be achieved using the bamg algorithm. 
I have some questions:
 
My 3D geometry consists of several layers stacked in z direction. Some of 
these layers are rather thin. I would like to have a mesh which is finer in z 
direction than in x and y direction. Can this be achieved using the bamg 
algorithm? If so, how?
How can I access this algorithm from the GUI? I did not find it in Options – 
Mesh.
If not accessible from the GUI, how else can I use it?
Is there any documentation available concerning this topic? I did not find 
anything in the gmsh manual (which is from October 2010 btw).
 
Thank you,
 
Matthias
 
 
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