songsenand
/
cgal
mirror of https://github.com/CGAL/cgal
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
cgal/Linear_cell_complex/include/CGAL/draw_linear_cell_complex.h

306 lines
10 KiB
C++
Raw Blame History

// Copyright (c) 2018 CNRS and LIRIS' Establishments (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org)
//
// $URL$
// $Id$
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
// Mostafa Ashraf <mostaphaashraf1996@gmail.com>
#ifndef CGAL_DRAW_LCC_H
#define CGAL_DRAW_LCC_H
#include <CGAL/Graphic_buffer.h>
#include <CGAL/Drawing_functor.h>
#include <CGAL/Qt/Basic_viewer_qt.h>
#include <functional>
#ifdef CGAL_USE_BASIC_VIEWER
#include <CGAL/Linear_cell_complex_operations.h>
#include <CGAL/Random.h>
namespace CGAL {
namespace draw_function_for_lcc
{
typedef CGAL::Exact_predicates_inexact_constructions_kernel Local_kernel;
typedef Local_kernel::Point_3 Local_point;
typedef Local_kernel::Vector_3 Local_vector;
template <class LCC, class Local_kernel, int dim = LCC::ambient_dimension>
struct LCC_geom_utils;
template <class LCC, class Local_kernel>
struct LCC_geom_utils<LCC, Local_kernel, 3>
{
static typename Local_kernel::Vector_3
get_vertex_normal(const LCC &lcc, typename LCC::Dart_const_handle dh)
{
typename Local_kernel::Vector_3 n =
internal::Geom_utils<typename LCC::Traits, Local_kernel>::
get_local_vector(CGAL::compute_normal_of_cell_0<LCC>(lcc, dh));
n = n / (CGAL::sqrt(n * n));
return n;
}
};
template <class LCC, class Local_kernel>
struct LCC_geom_utils<LCC, Local_kernel, 2>
{
static typename Local_kernel::Vector_3
get_vertex_normal(const LCC &, typename LCC::Dart_const_handle)
{
typename Local_kernel::Vector_3 n=CGAL::NULL_VECTOR;
return n;
}
};
template <typename BufferType=float, class LCC, class DrawingFunctorLCC>
void compute_face(typename LCC::Dart_const_handle dh,
typename LCC::Dart_const_handle voldh, const LCC *lcc,
const DrawingFunctorLCC &m_drawing_functor,
Graphic_buffer<BufferType> &graphic_buffer)
{
if (!m_drawing_functor.are_faces_enabled() ||
!m_drawing_functor.draw_face(*lcc, dh))
{ return; }
// We fill only closed faces.
typename LCC::Dart_const_handle cur=dh;
do
{
if (!lcc->is_next_exist(cur))
{ return; } // open face=>not filled
cur = lcc->next(cur);
}
while (cur!=dh);
if (m_drawing_functor.colored_volume(*lcc, voldh))
{
CGAL::IO::Color c=m_drawing_functor.volume_color(*lcc, voldh);
graphic_buffer.face_begin(c);
}
else if (m_drawing_functor.colored_face(*lcc, dh))
{
CGAL::IO::Color c=m_drawing_functor.face_color(*lcc, dh);
graphic_buffer.face_begin(c);
}
else
{ graphic_buffer.face_begin(); }
cur=dh;
do
{
graphic_buffer.add_point_in_face
(lcc->point(cur),
LCC_geom_utils<LCC, Local_kernel>::get_vertex_normal(*lcc, cur));
cur=lcc->next(cur);
}
while (cur!=dh);
graphic_buffer.face_end();
}
template <typename BufferType=float, class LCC, class DrawingFunctor>
void compute_edge(typename LCC::Dart_const_handle dh, const LCC *lcc,
const DrawingFunctor &m_drawing_functor,
Graphic_buffer<BufferType> &graphic_buffer)
{
if (!m_drawing_functor.are_edges_enabled() ||
!m_drawing_functor.draw_edge(*lcc, dh))
{ return; }
const typename LCC::Point& p1=lcc->point(dh);
typename LCC::Dart_const_handle d2=lcc->other_extremity(dh);
if (d2!=nullptr)
{
if (m_drawing_functor.colored_edge(*lcc, dh))
{
graphic_buffer.add_segment(p1, lcc->point(d2),
m_drawing_functor.edge_color(*lcc, dh));
}
else
{ graphic_buffer.add_segment(p1, lcc->point(d2)); }
}
}
template <typename BufferType = float, class LCC, class DrawingFunctorLCC>
void compute_vertex(typename LCC::Dart_const_handle dh, const LCC *lcc,
const DrawingFunctorLCC &m_drawing_functor,
Graphic_buffer<BufferType> &graphic_buffer)
{
if (!m_drawing_functor.are_vertices_enabled() ||
!m_drawing_functor.draw_vertex(*lcc, dh))
{ return; }
if (m_drawing_functor.colored_vertex(*lcc, dh))
{
graphic_buffer.add_point(lcc->point(dh),
m_drawing_functor.vertex_color(*lcc, dh));
}
else
{ graphic_buffer.add_point(lcc->point(dh)); }
}
template <typename BufferType = float, class LCC, class DrawingFunctor>
void compute_elements(const LCC *lcc, Graphic_buffer<BufferType> &graphic_buffer,
const DrawingFunctor &m_drawing_functor)
{
if (lcc==nullptr)
{ return; }
typename LCC::size_type markvolumes = lcc->get_new_mark();
typename LCC::size_type markfaces = lcc->get_new_mark();
typename LCC::size_type markedges = lcc->get_new_mark();
typename LCC::size_type markvertices = lcc->get_new_mark();
typename LCC::size_type oriented_mark = lcc->get_new_mark();
lcc->orient(oriented_mark);
for(typename LCC::Dart_range::const_iterator it=lcc->darts().begin(),
itend=lcc->darts().end(); it!=itend; ++it)
{
if (!lcc->is_marked(it, markvolumes) &&
m_drawing_functor.draw_volume(*lcc, it))
{
for(typename LCC::template Dart_of_cell_basic_range<3>::const_iterator
itv=lcc->template darts_of_cell_basic<3>(it, markvolumes).begin(),
itvend=lcc->template darts_of_cell_basic<3>(it, markvolumes).end();
itv!=itvend; ++itv)
{
lcc->mark(itv, markvolumes);
if (!lcc->is_marked(itv, markfaces) &&
lcc->is_marked(itv, oriented_mark) &&
m_drawing_functor.draw_face(*lcc, itv))
{
if (!m_drawing_functor.volume_wireframe(*lcc, itv) &&
!m_drawing_functor.face_wireframe(*lcc, itv))
{ compute_face(itv, it, lcc, m_drawing_functor, graphic_buffer); }
for(typename LCC::template Dart_of_cell_basic_range<2>::const_iterator
itf=lcc->template darts_of_cell_basic<2>(itv, markfaces).begin(),
itfend=lcc->template darts_of_cell_basic<2>(itv, markfaces).end();
itf!=itfend; ++itf)
{
lcc->mark(itf, markfaces);
if (!lcc->is_marked(itf, markedges) &&
m_drawing_functor.draw_edge(*lcc, itf))
{
compute_edge(itf, lcc, m_drawing_functor, graphic_buffer);
for(typename LCC::template Dart_of_cell_basic_range<1>::const_iterator
ite=lcc->template darts_of_cell_basic<1>(itf, markedges).begin(),
iteend=lcc->template darts_of_cell_basic<1>(itf, markedges).end();
ite!=iteend; ++ite)
{
lcc->mark(ite, markedges);
if (!lcc->is_marked(ite, markvertices) &&
m_drawing_functor.draw_vertex(*lcc, ite))
{
compute_vertex(ite, lcc, m_drawing_functor, graphic_buffer);
CGAL::mark_cell<LCC, 0>(*lcc, ite, markvertices);
}
}
}
}
}
}
}
}
for (typename LCC::Dart_range::const_iterator it = lcc->darts().begin(),
itend = lcc->darts().end(); it != itend; ++it)
{
lcc->unmark(it, markvertices);
lcc->unmark(it, markedges);
lcc->unmark(it, markfaces);
lcc->unmark(it, markvolumes);
lcc->unmark(it, oriented_mark);
}
lcc->free_mark(markvolumes);
lcc->free_mark(markfaces);
lcc->free_mark(markedges);
lcc->free_mark(markvertices);
lcc->free_mark(oriented_mark);
}
} // namespace draw_function
/**
* @brief This function is responsible for filling the buffer to allow
* visualization.
*
* @param graphic_buffer
* @param m_drawing_functor
* @param alcc
*/
template <typename BufferType = float, class LCC, class DrawingFunctor>
void add_in_graphic_buffer(const LCC &alcc, Graphic_buffer<BufferType> &graphic_buffer,
const DrawingFunctor &m_drawing_functor)
{
draw_function_for_lcc::compute_elements(&alcc, graphic_buffer, m_drawing_functor);
}
template <typename BufferType = float, class LCC>
void add_in_graphic_buffer(const LCC &alcc, Graphic_buffer<BufferType> &graphic_buffer)
{
Drawing_functor_with_volume<LCC,typename LCC::Dart_const_handle,
typename LCC::Dart_const_handle,
typename LCC::Dart_const_handle,
typename LCC::Dart_const_handle> drawing_functor_with_volume;
drawing_functor_with_volume.colored_volume = [](const LCC&,
typename LCC::Dart_const_handle) -> bool
{ return true; };
drawing_functor_with_volume.volume_color = [] (const LCC& alcc,
typename LCC::Dart_const_handle dh) -> CGAL::IO::Color
{
CGAL::Random random((unsigned int)(alcc.darts().index(dh)));
return get_random_color(random);
};
add_in_graphic_buffer(alcc, graphic_buffer, drawing_functor_with_volume);
}
// Specialization of draw function.
#define CGAL_LCC_TYPE \
CGAL::Linear_cell_complex_base<d_, ambient_dim, Traits_, Items_, Alloc_, \
Map, Refs, Storage_>
template<unsigned int d_, unsigned int ambient_dim, class Traits_,
class Items_, class Alloc_,
template <unsigned int, class, class, class, class> class Map,
class Refs, class Storage_,
class DrawingFunctor>
void draw(const CGAL_LCC_TYPE &alcc, const DrawingFunctor &drawing_functor,
const char *title = "LCC for CMap Basic Viewer")
{
Graphic_buffer<float> buffer;
add_in_graphic_buffer(alcc, buffer, drawing_functor);
draw_buffer(buffer);
}
template<unsigned int d_, unsigned int ambient_dim, class Traits_,
class Items_, class Alloc_,
template <unsigned int, class, class, class, class> class Map,
class Refs, class Storage_>
void draw(const CGAL_LCC_TYPE &alcc, const char *title = "LCC for CMap Basic Viewer")
{
Graphic_buffer<float> buffer;
add_in_graphic_buffer(alcc, buffer);
draw_buffer(buffer);
}
#undef CGAL_LCC_TYPE
} // End namespace CGAL
#endif // CGAL_USE_BASIC_VIEWER
#endif // CGAL_DRAW_LCC_H
Reference in New Issue View Git Blame Copy Permalink