CGAL users discussion list

[Marco Attene <>]

I suggest you to try a free software called ReMESH
(http://remesh.sourceforge.net). If you load your mesh into this
software and re-save it, the resulting file represents a surface which
is exactly coincident with your input, but it is combinatorially
manifold, so you can load it into a CGAL polyhedron. Also, if you want
to try, ReMESH proposes you to fix the geometry too (by removing
degenerate and skinny triangles), but this might slightly modify the
surface.
BTW, you may save to several formats, just specify the correct extension.
Hope it helps.

marco


Calvin Lim ha scritto:
>
>
>
> Hi all,
>
> I was searching thru the various data structure for 3D surfaces and
> the only one there is is the polyhedron class. However, within that
> class the connectivity of the nodes and faces are maintained properly,
> giving a 3D surface manifold (with or without boundaries).
>
> However, what if I have a dirty mesh which I obtained from somewhere
> which I want to use CGAL to perform cleaning up operations, but I will
> not be able to load it into the polyhedron class. By dirty mesh, I
> meant that it is possible for an edge to be adjacent to 3 or more faces.
>
>
>
> thanks all.
> Calvin
>
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Marco Attene
Istituto di Matematica Applicata e Tecnologie Informatiche
Consiglio Nazionale delle Ricerche
Via de Marini 6 - 16149 - Genova - ITALY

Tel. +39(0)106475691
Fax. +39(0)106475660

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