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// Copyright (c) 1997, 2012 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1.1/Alpha_shapes_3/include/CGAL/Alpha_shape_cell_base_3.h $
// $Id: include/CGAL/Alpha_shape_cell_base_3.h 08b27d3db14 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Tran Kai Frank DA
#ifndef CGAL_ALPHA_SHAPE_CELL_BASE_3_H
#define CGAL_ALPHA_SHAPE_CELL_BASE_3_H
#include <CGAL/license/Alpha_shapes_3.h>
#include <vector>
#include <CGAL/Compact_container.h>
#include <CGAL/Delaunay_triangulation_cell_base_3.h>
#include <CGAL/Alpha_shapes_3/internal/Lazy_alpha_nt_3.h>
#include <CGAL/Default.h>
namespace CGAL {
template < class NT_>
class Alpha_status
: public Compact_container_base
{
bool _is_Gabriel;
bool _is_on_chull;
NT_ _alpha_min;
NT_ _alpha_mid;
NT_ _alpha_max;
public:
typedef NT_ NT;
Alpha_status() : _is_Gabriel(false), _is_on_chull(false) {}
void set_alpha_min(NT alpha) {_alpha_min = alpha;}
void set_alpha_mid(NT alpha) {_alpha_mid = alpha;}
void set_alpha_max(NT alpha) {_alpha_max = alpha;}
void set_is_Gabriel(bool yesorno) { _is_Gabriel = yesorno;}
void set_is_on_chull(bool yesorno) {_is_on_chull = yesorno;}
NT alpha_min() const { return _alpha_min;}
NT alpha_mid() const { return _alpha_mid;}
NT alpha_max() const { return _alpha_max;}
bool is_Gabriel() const {return _is_Gabriel;}
bool is_on_chull() const {return _is_on_chull;}
};
template < class Gt,
class Cb_ = Default,
class ExactAlphaComparisonTag = Tag_false,
class Weighted_tag = Tag_false >
class Alpha_shape_cell_base_3
: public Default::Get<Cb_, Delaunay_triangulation_cell_base_3<Gt> >::type
{
typedef typename Default::Get<Cb_, Delaunay_triangulation_cell_base_3<Gt> >::type Cb;
public:
typedef typename Cb::Vertex_handle Vertex_handle;
typedef typename Cb::Cell_handle Cell_handle;
template < typename TDS2 >
struct Rebind_TDS {
typedef typename Cb::template Rebind_TDS<TDS2>::Other Cb2;
typedef Alpha_shape_cell_base_3<Gt, Cb2,ExactAlphaComparisonTag,Weighted_tag> Other;
};
typedef typename internal::Alpha_nt_selector_3<
Gt,ExactAlphaComparisonTag,Weighted_tag>::Type_of_alpha NT;
typedef CGAL::Alpha_status<NT> Alpha_status;
typedef Compact_container<Alpha_status> Alpha_status_container;
typedef typename Alpha_status_container::const_iterator Alpha_status_const_iterator;
typedef typename Alpha_status_container::iterator Alpha_status_iterator;
private:
Alpha_status_iterator facet_status[4];
NT A;
public:
Alpha_shape_cell_base_3()
: Cb() {}
Alpha_shape_cell_base_3(Vertex_handle v0, Vertex_handle v1,
Vertex_handle v2, Vertex_handle v3)
: Cb(v0, v1, v2, v3) {}
Alpha_shape_cell_base_3(Vertex_handle v0, Vertex_handle v1,
Vertex_handle v2, Vertex_handle v3,
Cell_handle n0, Cell_handle n1,
Cell_handle n2, Cell_handle n3)
: Cb(v0, v1, v2, v3, n0, n1, n2, n3) {}
NT get_alpha() const { return A; }
void set_alpha(const NT & AA) { A = AA;}
Alpha_status_iterator get_facet_status(int i) {return facet_status[i]; }
Alpha_status_const_iterator get_facet_status(int i) const { return facet_status[i]; }
void set_facet_status(int i, Alpha_status_iterator as) { facet_status[i]= as; }
};
} // namespace CGAL
#endif // CGAL_ALPHA_SHAPE_CELL_BASE_3_H
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