[Gmsh] holes and layers

[Christophe Geuzaine]

Jin Chen wrote:
> 
> On Wed, 18 Jun 2003, Christophe Geuzaine wrote:
> 
> 
>>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'.
> 
> Thanks. So
> 
> 1. If I clicked somewhere inside the surface or volume to select a
> hole, how can this hole be displayed. I mean I just clicked and then typed
> "q" without doing anything else.

No. Like surfaces, surfaces holes are created by selecting their boundaries.

You can visualize the surfaces (a dashed cross inside them) by using
Options->Geometry->Visibility->Surfaces.

Christophe

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