CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

One thing you can try is the Alpha_shape_3 demo
(in CGAL_ROOT/demo/Alpha_shape_3) and play with the slider to see
whether the reconstruction fit your needs.


Sebastien.

Battalgazi YILDIRIM wrote:
> Hi Sebastian,
>
> Our problem we have a simple shape of beam (thin plate) is deforming,
>
> one of our solver is particle based solver and it send  surface   points of
> the beam to other mesh-based solver. The mesh based solver takes these 
> points and needs
> to create the surface mesh.  But we insist on the original points, 
> otherwise we have
> a lot complications.
>
> Those points might create a concave shape, I think that convex shape is 
> not guaranteed.
>
> Thanks,
>
>
> On Tue, Jan 3, 2012 at 11:08 AM, Sebastien Loriot (GeometryFactory) 
> < <mailto:>> wrote:
>
>     Do your points have some particular properties (on a convex shape,
>     inside a set of planes, ...)?
>
>     Sebastien.
>
>     Battalgazi YILDIRIM wrote:
>
>         Hi Sebastian,
>
>         Thanks for answer,
>
>         Is there any other way to do in CGAL, just give surface points
>         and get reconstructed mesh
>         connecting those points?
>
>         Thanks,
>
>         On Tue, Jan 3, 2012 at 2:20 AM, Sebastien Loriot
>         (GeometryFactory) 
> <
>         
> <mailto:>
>  
> <mailto:
>         
> <mailto:>>>
>  wrote:
>
>            Battalgazi YILDIRIM wrote:
>
>
>                Hi,
>
>                I am trying to use points and normals to reconstruct surface
>                mesh, I follow "Surface
>                Reconstruction from Point Sets" section in CGAL.
>
>                I have some input points and its normal. Since algorithm
>         solves
>                eliptic equation of
>                Poisson reconstruction and it gives a approximate surface.
>
>                Is it possible to reconstruct mesh that its vertices are
>                 exactly the same with input?
>
>
>            This is not possible with this algorithm.
>
>            Sebastien.
>
>
>
>                if you can help me, I would be really glad,
>
>                Thanks,
>
>
>
>                B. Gazi YILDIRIM
>
>
>
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>         -- 
>         B. Gazi YILDIRIM
>
>
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> --
> B. Gazi YILDIRIM