CGAL users discussion list

[Mariette Yvinec <>]

you cannot preserve the object mesh
but you can remesh everything, object
and outer space while using the object surface
mesh facets, edges and vertices as 2, 1 and 0
constraints.
These features may be further subdivided in he final mesh
but will be preserved. The final mesh may be overdense.


Le 19/07/11 18:42, kyungjoo a écrit :
> Yes, I saw the API functions for filling the space between surfaces.
>
> However, I also need the object mesh as well as the outer space mesh.
>
> I would like to keep the surface mesh vertices on the object. Or when I
>
> re-mesh the whole space, I would like to give a constraint for the object
>
> surface. I may try to insert 0 and 1 dimension features inside so that it
>
> could maintain the object surface. Still reading the manual and thinking
>
> some ideas. Do you have better idea ? or could you brief about the
>
> necessary API functions that I can refer ?
>
>
>
> Thanks.
>
>
>
>
>
>
> Mariette Yvinec wrote:
> > Using CGAL, you can easily create  a 3D mesh filling the space
> > between the surface of the object and the outer surface mesh.
> > Note however that the bounding surfaces, i.e. the surface mesh from the
> > object
> > and the  outer space boundary surface mesh are going to be remeshed.
> >
> > Le 19/07/11 17:40, kyungjoo a écrit :
> > > I am new to cgal. It almost satisfies my needs so I am trying to make it
> > > work
> > > in my project.
> > >
> > > I have a complicated geometry which is composed of fine grid mesh.
> > >
> > > I can dump it to cgal to create volume mesh, then I need outer volume
> > > mesh
> > > of sphere which includes my object mesh. So, I would like to use surface
> > > mesh from the object mesh for the outer space mesh.
> > >
> > > These two can be done separately but how can I merge them ? or can I just
> > > create outer space mesh using object surface mesh and outer space
> > > boundary
> > > surface mesh ?
> > >
> > > You can simply imagine a wing in the wind turnel in 3D.
> > >
> > > -----------------------------------
> > > |                                         |
> > > |       [ Object mesh ]             |
> > > |                                         |
> > > |                                         |
> > > -----------------------------------
> > > [ Space domain ]
> > >
> > >
> > > thanks..
> > >
> > >
> > > --
> > > View this message in context:
> > > http://cgal-discuss.949826.n4.nabble.com/how-can-I-create-3d-mesh-from-surface-the-two-surface-meshes-tp3678445p3678445.html
> > > Sent from the cgal-discuss mailing list archive at Nabble.com.
> > --
> > Mariette Yvinec
> > Geometrica project team
> > INRIA  Sophia-Antipolis
> >
> >
> >
> >
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> Sent from the cgal-discuss mailing list archive at Nabble.com.

--
Mariette Yvinec
Geometrica project team
INRIA  Sophia-Antipolis