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Add viewer for faces of Nef Polyhedron.

This commit is contained in:
Jasmeet Singh 2019-06-28 13:25:09 -07:00
parent 9995083b9e
commit 42c09f550d
1 changed files with 36 additions and 1 deletions
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37
Nef_3/include/CGAL/draw_nef_3.h
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@ -28,6 +28,7 @@
#ifdef CGAL_USE_BASIC_VIEWER
#include <CGAL/Nef_3/SNC_iteration.h>
#include <CGAL/circulator.h>
#include <CGAL/Random.h>
namespace CGAL {
@ -59,6 +60,12 @@ class SimpleNefPolyhedronViewerQt : public Basic_viewer_qt
typedef typename Nef_Polyhedron::SNC_structure SNC_structure;
typedef typename SNC_structure::Infi_box Infi_box;
typedef typename SNC_structure::Halffacet_cycle_const_iterator
Halffacet_cycle_const_iterator;
typedef typename SNC_structure::SHalfedge_around_facet_const_circulator
SHalfedge_around_facet_const_circulator;
typedef typename Nef_Polyhedron::Shell_entry_const_iterator Shell_entry_const_iterator;
typedef typename Nef_Polyhedron::SFace_const_handle SFace_const_handle;
typedef typename Nef_Polyhedron::Volume_const_iterator Volume_const_iterator;
@ -118,8 +125,36 @@ protected:
viewer.add_point(vh->point());
}
void visit(Halffacet_const_handle opposite_facet)
{
SHalfedge_const_handle se;
Halffacet_cycle_const_iterator fc;
Halffacet_const_handle f = opposite_facet->twin();
SHalfedge_around_facet_const_circulator sfc1(f->facet_cycles_begin()),
sfc2(sfc1);
// if(++f->facet_cycles_begin() != f->facet_cycles_end() ||
// ++(++(++sfc1)) != sfc2)
// {
// ;
// } else
// {
viewer.face_begin();
fc = f->facet_cycles_begin();
se = SHalfedge_const_handle(fc);
CGAL_assertion(se!=0);
SHalfedge_around_facet_const_circulator hc_start(se);
SHalfedge_around_facet_const_circulator hc_end(hc_start);
CGAL_For_all(hc_start, hc_end)
{
viewer.add_point_in_face(hc_start->source()->center_vertex()->point());
}
viewer.face_end();
// }
}
void visit(Halfedge_const_handle ) {}
void visit(Halffacet_const_handle ) {}
void visit(SHalfedge_const_handle ) {}
void visit(SHalfloop_const_handle ) {}
void visit(SFace_const_handle ) {}