1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/* This file is part of the Gudhi Library. The Gudhi library
* (Geometric Understanding in Higher Dimensions) is a generic C++
* library for computational topology.
*
* Author(s): David Salinas
*
* Copyright (C) 2014 Inria
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SKELETON_BLOCKER_SKELETON_BLOCKER_COMPLEX_VISITOR_H_
#define SKELETON_BLOCKER_SKELETON_BLOCKER_COMPLEX_VISITOR_H_
#include <gudhi/Skeleton_blocker/Skeleton_blocker_simplex.h>
namespace Gudhi {
namespace skeleton_blocker {
// TODO(DS): to be constified
/**
*@class Skeleton_blocker_complex_visitor
*@brief Interface for a visitor of a simplicial complex.
*/
template<typename Vertex_handle>
class Skeleton_blocker_complex_visitor {
public:
virtual ~Skeleton_blocker_complex_visitor() { }
virtual void on_add_vertex(Vertex_handle) = 0;
virtual void on_remove_vertex(Vertex_handle) = 0;
virtual void on_add_edge_without_blockers(Vertex_handle a, Vertex_handle b) = 0;
virtual void on_remove_edge(Vertex_handle a, Vertex_handle b) = 0;
/**
* @brief Called when an edge changes, during the contraction of
* an edge
*/
virtual void on_changed_edge(Vertex_handle a, Vertex_handle b) = 0;
/**
* @brief Called when performing an edge contraction when
* an edge bx is replaced by an edge ax (not already present).
* Precisely, this methods is called this way in contract_edge :
* add_edge_without_blockers(a,x)
* on_swaped_edge(a,b,x)
* remove_edge(b,x)
*/
virtual void on_swaped_edge(Vertex_handle a, Vertex_handle b,
Vertex_handle x) = 0;
virtual void on_add_blocker(
const Skeleton_blocker_simplex<Vertex_handle>&) = 0;
virtual void on_delete_blocker(
const Skeleton_blocker_simplex<Vertex_handle>*) = 0;
};
/**
*@class Dummy_complex_visitor
*@brief A dummy visitor of a simplicial complex that does nothing
*
*/
template<typename Vertex_handle>
class Dummy_complex_visitor : public Skeleton_blocker_complex_visitor<
Vertex_handle> {
public:
void on_add_vertex(Vertex_handle) { }
void on_remove_vertex(Vertex_handle) { }
void on_add_edge_without_blockers(Vertex_handle a, Vertex_handle b) { }
void on_remove_edge(Vertex_handle a, Vertex_handle b) { }
void on_changed_edge(Vertex_handle a, Vertex_handle b) { }
void on_swaped_edge(Vertex_handle a, Vertex_handle b, Vertex_handle x) { }
void on_add_blocker(const Skeleton_blocker_simplex<Vertex_handle>&) { }
void on_delete_blocker(const Skeleton_blocker_simplex<Vertex_handle>*) { }
};
/**
*@class Print_complex_visitor
*@brief A visitor that prints the visit information.
*
*/
template<typename Vertex_handle>
class Print_complex_visitor : public Skeleton_blocker_complex_visitor<
Vertex_handle> {
public:
void on_add_vertex(Vertex_handle v) {
std::cerr << "on_add_vertex:" << v << std::endl;
}
void on_remove_vertex(Vertex_handle v) {
std::cerr << "on_remove_vertex:" << v << std::endl;
}
void on_add_edge_without_blockers(Vertex_handle a, Vertex_handle b) {
std::cerr << "on_add_edge_without_blockers:" << a << "," << b << std::endl;
}
void on_remove_edge(Vertex_handle a, Vertex_handle b) {
std::cerr << "on_remove_edge:" << a << "," << b << std::endl;
}
void on_changed_edge(Vertex_handle a, Vertex_handle b) {
std::cerr << "on_changed_edge:" << a << "," << b << std::endl;
}
void on_swaped_edge(Vertex_handle a, Vertex_handle b, Vertex_handle x) {
std::cerr << "on_swaped_edge:" << a << "," << b << "," << x << std::endl;
}
void on_add_blocker(const Skeleton_blocker_simplex<Vertex_handle>& b) {
std::cerr << "on_add_blocker:" << b << std::endl;
}
void on_delete_blocker(const Skeleton_blocker_simplex<Vertex_handle>* b) {
std::cerr << "on_delete_blocker:" << b << std::endl;
}
};
} // namespace skeleton_blocker
namespace skbl = skeleton_blocker;
} // namespace Gudhi
#endif // SKELETON_BLOCKER_SKELETON_BLOCKER_COMPLEX_VISITOR_H_
|
