[Gmsh] gmsh some definitions are not clear

[Christophe Geuzaine]

Krishna Mohan Gundu wrote:
> Dear Christophe Geuzaine,
> 
> You have done a wonderful job with mesh generation software and its
> documentation. Couple of things are not well addressed in the
> documentation and it took me a while to understand. I hope including
> these will save some time for the others.
> 
> 1. Surface Loop definition: while -ve signs in the line loop
> definitions are obvious for creating a surface, the -ve signs in the
> surface loop definitions are not obvious. You should say somewhere in
> the manual that the line loops should have an inward nomal into the
> volume(surface loop) being created, if not use a -ve sign.
> 
> 2. Define hole: it looks like that a hole may not have a coplanar
> surface with the volume. I see that this was addressed in the forum.
> It was not clear to me for a while, how to create a such a 'hole'.
> Here I am attaching a simple exercise I have done and may be
> worthwhile to include in the tutorial section.
> test2.geo: A simple cube
> test3.geo: A pyramid in the x-direction, which has two coplanar
> surfaces with the cube
> test4.geo: Shows how to 'subtract' test3.geo from test2.geo
> 

Krishna - Thanks for the feedback. I'll see how I can integrate your 
remarks in a future release of the documentation.

Take care,

Christophe

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