[Gmsh] Defining Mesh

Mikhail Artemyev artemiev.mikhail at gmail.com
Thu Mar 12 16:43:02 CET 2015


Hi Thomas,

I would suggest to play with the size of the mesh cells. There are several
ways:
http://geuz.org/gmsh/doc/texinfo/gmsh.html#Specifying-mesh-element-sizes

Best,
Mikhail



On Thu, Mar 12, 2015 at 10:05 AM, <gmsh-request at ace20.montefiore.ulg.ac.be>
wrote:

> Hello,
> In this picture the top is the original mesh of the scalpel. In the bottom
> I defined some compound surfaces. The mesh changed but the problem is that
> even in the one compound surface the mesh goes from point to point and is
> smaller in the areas where there used to be a smaller surface. I would like
> to be able to have a uniform mesh across surfaces.  Does this make the
> problem clear?  Thanks for your help.
>
> On Wed, Mar 11, 2015 at 9:51 AM, David Bernstein <
> David.Bernstein at meliorinnovations.com> wrote:
>
> >  Hi Thomas, I?m sorry but I don?t understand your problem.  It would be
> > helpful if you could post a small example.
> >
> >  Dave
> >
> >   On Mar 10, 2015, at 10:14 AM, Thomas Bernhardt <tzbernhardt at gmail.com>
> > wrote:
> >
> >  I am finding that I can define a compound surface and instead of a bunch
> > of separate meshes it treats it as one mesh but the points from the
> > original surface divisions remain.  So the problem is that the mesh is
> > defined based on points. The one mesh is the same as the original broken
> up
> > meshes. The mesh will still be smaller on the part of the compound
> surface
> > that used to be a smaller surface because points are closer together. Any
> > fix for this? Thanks for your help!
> >
> >  Thomas Bernhardt
> >
> > On Tue, Mar 10, 2015 at 10:23 AM, David Bernstein <
> > David.Bernstein at meliorinnovations.com> wrote:
> >
> >> Hi Thomas, Take a look at the Compound Line/Surface/Volume entities in
> >> Gmsh.  These will probably do what you want.
> >>
> >> Regards,
> >> Dave
> >>
> >>
> >> > On Mar 10, 2015, at 7:42 AM, Thomas Bernhardt <tzbernhardt at gmail.com>
> >> wrote:
> >> >
> >> > Hello,
> >> > I am trying to create a mesh in gmsh of a model that I have imported.
> >> The problem that I find is that every line in the model divides the
> mesh.
> >> Is there a way to mesh the whole surface as one body ignoring the lines
> >> that divide parts. For example on a simple aircraft model there will be
> a
> >> line dividing the metal surface from the glass of the cockpit. However,
> >> when defining a mesh I want to ignore this division and treat it as one
> >> single surface. Thanks for any help you can provide.
> >> >
> >> > Thomas Bernhardt
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