CGAL users discussion list

[sanlingtonCGAL <>]

Hi,

I know the Delaunay and Regular triangulation in CGAL can already add
information to vertices while inserting /a range of points/, as introduced
in
https://doc.cgal.org/latest/Triangulation_3/index.html#Triangulation_3Delaunay

But it seems that the Triangulation_2/3 (not Delaunay triangulation or
Regular triangulation) can't do that, am I correct?

What I want to do is to construct Triangulation by inserting a range of
points, and each point or vertex would carry extra information, like an
index.
I am using codes like:

#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Triangulation_3.h>
#include <CGAL/Triangulation_cell_base_3.h>
#include <CGAL/Triangulation_vertex_base_with_info_3.h>
#include <vector>
typedef CGAL::Exact_predicates_inexact_constructions_kernel         K;
typedef CGAL::Triangulation_vertex_base_with_info_3<unsigned, K>    Vb;
typedef CGAL::Triangulation_cell_base_3<K>                 Cb;
typedef CGAL::Triangulation_data_structure_3<Vb, Cb>                Tds;
//Use the Fast_location tag. Default or Compact_location works too.
typedef CGAL::Triangulation_3<K, Tds> Triangulation;
typedef Triangulation::Point                                            
Point;
int main()
{
        std::vector< std::pair<Point, unsigned> > points;
        points.push_back(std::make_pair(Point(0, 0, 0), 0));
        points.push_back(std::make_pair(Point(1, 0, 0), 1));
        points.push_back(std::make_pair(Point(0, 1, 0), 2));
        points.push_back(std::make_pair(Point(0, 0, 1), 3));
        points.push_back(std::make_pair(Point(2, 2, 2), 4));
        points.push_back(std::make_pair(Point(-1, 0, 1), 5));

        Triangulation T(points.begin(), points.end());
        CGAL_assertion(T.number_of_vertices() == 6);
        
        return 0;
}

The above codes are similar to those in the manual document, I just replaced
the Delaunay with Triangulation. But the compiler gave me errors like:

c:\program files (x86)\microsoft visual
studio\2017\community\vc\tools\msvc\14.16.27023\include\xmemory0(881): error
C2664: 'CGAL::Point_3<Kernel_>::Point_3(CGAL::Point_3<Kernel_> &&)': cannot
convert argument 1 from '_Ty' to 'const CGAL::Origin &'
1>        with
1>        [
1>            Kernel_=CGAL::Epick
1>        ]
1>        and
1>        [
1>            _Ty=std::pair<Point,unsigned int>
1>        ]
1>c:\program files (x86)\microsoft visual
studio\2017\community\vc\tools\msvc\14.16.27023\include\xmemory0(879): note:
Reason: cannot convert from '_Ty' to 'const CGAL::Origin'
1>        with
1>        [
1>            _Ty=std::pair<Point,unsigned int>
1>        ]


What should I do to add information to point/vertex of a Triangulation while
inserting a range of points?

Thank you.





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