CGAL users discussion list

[Winnie Hellmann <>]

Thanks a lot for the help! Here is my code to ensure the query_point 
lies inside the arrangmenet - in case anybody else would like to use it:

CGAL::Arr_walk_along_line_point_location<Input_container> locator(input_);

CGAL::Object location = locator.locate(query_point);

Input_container::Face_const_handle face;

if(CGAL::assign(face, location))
{
  // ensure that the unbounded face is unique
  assert(input_.number_of_unbounded_faces() == 1);

  // check for outside
  assert(face != input_.unbounded_face());

  // check for hole
  assert(face->outer_ccb()->twin()->face() == input_.unbounded_face());
}