[Gmsh] holes and layers

[Christophe Geuzaine]

Jin Chen wrote:
> 
>>- "Holes" stands for "holes in a surface or a volume". See e.g.
>>tutorial/t4.geo for the definition of a surface with a hole in it, or
>>tutorial/t5.geo for the definition of a volume with holes (cavities).
> 
> This is not the kind of hole I am asking. What I mean is as follows:
> When I repeated t1.geo interactively using GUI, I was always asked to
> select a "hole" at the bottom of graphical window after I selected the
> boundary line in order to create a surface.
> 

These are the same "holes" :-)

The GUI simply asks you if there are any holes in your new
surface/volume. If there are some holes, just select them.
Otherwise, type 'q'.

Christophe

-- 
Christophe A. Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org