CGAL users discussion list

[Zesen Qian <>]

Hi list,

So I'm trying to use the undocumented remove_self_intersection()
function, here is my short program:

#include <iostream>
#include <fstream>

#include <CGAL/Surface_mesh.h>
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <CGAL/Polygon_mesh_processing/repair.h>

typedef CGAL::Exact_predicates_exact_constructions_kernel T;
typedef T::Point_3 Point;
typedef CGAL::Surface_mesh<Point> Mesh;

namespace PMP = CGAL::Polygon_mesh_processing;

int main(int argc, char *argv[]) {
  std::ifstream inS(argv[1]);

  Mesh in;
  inS >> in;

  bool ret = PMP::remove_self_intersections(in);

  std::ofstream outS(argv[2]);
  outS.precision(17);
  outS << in;
  return !ret;
}

The command used to build(clang++ 6.0.0) is:

/usr/bin/c++ '-DCGAL_USE_CORE=1' -DCGAL_USE_GMP -DCGAL_USE_MPFR
-I/usr/local/include/eigen3 -isystem /usr/local/include
-I/usr/home/riaqn/doll/codes/cxx/build -O3 -DNDEBUG '-std=gnu++1z' -o
CMakeFiles/fix.dir/fix.cxx.o -c /usr/home/riaqn/doll/codes/cxx/fix.cxx

The error shown is:

In file included from /usr/home/riaqn/doll/codes/cxx/fix.cxx:4: In
file included from /usr/local/include/CGAL/Surface_mesh.h:27: In file
included from /usr/local/include/CGAL/Surface_mesh/Surface_mesh.h:46:
/usr/local/include/CGAL/property_map.h:483:5: error: use of undeclared
identifier 'CGAL_assertion' CGAL_assertion(pm.set_ptr!=NULL); ^
/usr/local/include/CGAL/boost/graph/selection.h:120:15: note: in
instantiation of member function 'CGAL::get' requested here while(
!get(is_selected,fd) ) ^
/usr/local/include/CGAL/Polygon_mesh_processing/repair.h:1447:9: note:
in instantiation of function template specialization
'CGAL::expand_face_selection, std::__1::allocator >,
CGAL::Surface_mesh >, CGAL::Boolean_property_map, std::__1::allocator
> >, CGAL::Emptyset_iterator>' requested here
expand_face_selection(cc_faces, tm, step, ^
/usr/local/include/CGAL/Polygon_mesh_processing/repair.h:1928:7: note:
in instantiation of function template specialization
'CGAL::Polygon_mesh_processing::remove_self_intersections_one_step >,
CGAL::SM_Face_index, CGAL::Surface_mesh >::Property_map > >' requested
here remove_self_intersections_one_step(tm, faces_to_remove, vpm,
step, preserve_genus, verbose); ^
/usr/local/include/CGAL/Polygon_mesh_processing/repair.h:1944:10:
note: in instantiation of function template specialization
'CGAL::Polygon_mesh_processing::remove_self_intersections >,
CGAL::cgal_bgl_named_params >' requested here return
remove_self_intersections(tm, parameters::all_default()); ^
/usr/home/riaqn/doll/codes/cxx/fix.cxx:20:19: note: in instantiation
of function template specialization
'CGAL::Polygon_mesh_processing::remove_self_intersections > >'
requested here bool ret = PMP::remove_self_intersections(in); ^

Any comment would be much appreciated.

Best,
Zesen