CGAL users discussion list

[Laurent Rineau <>]

On Monday 09 June 2008 18:07:18 Hui Ding wrote:
> Hi all,
>
> I have this file of 3D points whose data are from an image depth, which
> means those 3D points define an object 3D non-closed. I want to mesh this
> object, is it possible that i can use the make_surface_mesh to do that? and
> how? for example, how to define the sphere_3, the centre, etc? Can anybody
> give an idea? Thanx!!

Here is an answer I made in another thread of this list, last year ("3D 
surface meshing", 2007/06/08):

« You seem to have a set of points, as input. Surface_mesher in CGAL-3.3 is a 
package to mesh a implicit function. What you need is a surface 
reconstruction algorithm (from a set of points). You cannot use 
Surface_mesher.

However, there exists some algorithm to compute an implicit function, from a 
set of points, whose zero level represents a smooth surface interpoling the 
points. If you have such a function, then you can use the Surface_mesher 
package. »

As far as I know, there are not any code in current CGAL-3.3.1 for such a 
task.

-- 
Laurent Rineau
INRIA - Sophia Antipolis
BP 93, 2004 Route des Lucioles
06902 Sophia Antipolis Cedex FRANCE
Tel: +33 4 92 38 78 62 (Fax: +33.4.97.15.53.95)