CGAL users discussion list

[Nuno Pessanha Santos <>]

Hi,

Thanks Sebastien for your  answer.

I only need the index of the points, example:

Original Point Cloud:

point 1

point 2

point 3

point 4

Convex Hull:

point 3

point 4

I want to read the 3 and 4, to make them correspond in my further processing.

Thanks.

Nuno Pessanha Santos 

> Date: Thu, 24 Oct 2013 07:11:37 +0200
> From:
> To:
> Subject: Re: [cgal-discuss] Convex_hull_3 - CGAL
>
> On 10/24/2013 05:31 AM, Nuno Pessanha Santos wrote:
> > Hi,
> >
> > I am starting to use CGAL, and maybe this is a stupid question but I
> > need some help.
> >
> > When you use the function "CGAL::convex_hull_3(points.begin(),
> > points.end(), Polyhedron_3 poly);" you obtain the polyhedron poly.
> >
> > How can I read the obtained vertices or the points index that are
> > contained in the convex hull? I see so many examples but none of them
> > could help me in my task.
>
> Is the following what you are looking for?
>
> Polyhedron_3 poly;
> CGAL::convex_hull_3(points.begin(), points.end(), poly);
> std::vector<Point_3> chull_points(poly.points_begin(), poly.points_end());
>
>
> Sebastien
>
> >
> > Thanks
> >
> > Nuno Pessanha Santos
> >
> >
>
>
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