CGAL users discussion list

["Dan Hayes" <>]

Dear all,

I'm trying to modify the Approximate_min_ellipsoid_d example program (maple_example.C) to work on 3-dimensional points.  Does CGAL support 3-d calculations in this way?  I keep getting compile errors just from including what I thought were the right files...  The code below is throwing errors, but if I commet out the line:
typedef Traits::Point                                          Point;
then it compiles fine...  Any ideas?



#include <vector>
#include <iostream>
#include <iomanip>

#include <CGAL/basic.h>
#include <CGAL/Cartesian_d.h>
#include <CGAL/MP_Float.h>
#include <CGAL/point_generators_d.h>
#include <CGAL/Approximate_min_ellipsoid_d.h>
#include <CGAL/Approximate_min_ellipsoid_d_traits_3.h>
#include <CGAL/Range_segment_tree_traits.h>

typedef CGAL::Cartesian_d<double>                              Kernel;
typedef CGAL::MP_Float                                         ET;
typedef CGAL::Approximate_min_ellipsoid_d_traits_3<Kernel, ET> Traits;
typedef Traits::Point                                          Point;
//typedef std::vector<Point>                                     Point_list;
//typedef CGAL::Approximate_min_ellipsoid_d<Traits>              AME;

int main(int argc, char **argv)
{

}


[user@localhost /usr/share/CGAL/examples/Approximate_min_ellipsoid_d]# make
g++ -I../../include -Wall -frounding-math -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic        -I/usr/lib64/qt-
3.3/include           -c maple_example.C
/usr/include/CGAL/Approximate_min_ellipsoid_d_traits_3.h: In instantiation of 'CGAL::Approximate_min_ellipsoid_d_traits_3<CGAL::Cartesian_d<double, CGAL::Linear_algebraCd<double, std::allocator<double> > >, CGAL::MP_Float>':
maple_example.C:19:   instantiated from here
/usr/include/CGAL/Approximate_min_ellipsoid_d_traits_3.h:32: error: no type named 'Point_3' in 'class CGAL::Cartesian_d<double, CGAL::Linear_algebraCd<double, std::allocator<double> > >'
/usr/include/CGAL/Approximate_min_ellipsoid_d_traits_3.h:33: error: no type named 'Cartesian_const_iterator_3' in 'class CGAL::Cartesian_d<double, CGAL::Linear_algebraCd<double, std::allocator<double> > >'
/usr/include/CGAL/Approximate_min_ellipsoid_d_traits_3.h:36: error: no type named 'Point_3' in 'class CGAL::Cartesian_d<double, CGAL::Linear_algebraCd<double, std::allocator<double> > >'
/usr/include/CGAL/Approximate_min_ellipsoid_d_traits_3.h:41: error: no type named 'Cartesian_const_iterator_3' in 'class CGAL::Cartesian_d<double, CGAL::Linear_algebraCd<double, std::allocator<double> > >'
make: *** [maple_example.o] Error 1