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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/*****************************************************************************
* $CAMITK_LICENCE_BEGIN$
*
* CamiTK - Computer Assisted Medical Intervention ToolKit
* (c) 2001-2018 Univ. Grenoble Alpes, CNRS, TIMC-IMAG UMR 5525 (GMCAO)
*
* Visit http://camitk.imag.fr for more information
*
* This file is part of CamiTK.
*
* CamiTK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* CamiTK 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 Lesser General Public License version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with CamiTK. If not, see <http://www.gnu.org/licenses/>.
*
* $CAMITK_LICENCE_END$
****************************************************************************/
#include "SurfaceExtractor.h"
// -------------------- constructor ------------------------
SurfaceExtractor::SurfaceExtractor(PhysicalModel* pm) {
this->pm = pm;
}
// -------------------- destructor ------------------------
SurfaceExtractor::~SurfaceExtractor() {
for (unsigned int i = 0; i < facets.size(); i++) {
delete facets[i];
}
facets.clear();
}
// -------------------- init ------------------------
void SurfaceExtractor::init() {
for (unsigned int i = 0; i < facets.size(); i++) {
delete facets[i];
}
facets.clear();
}
// -------------------- AddCell ------------------------
void SurfaceExtractor::AddCell(Cell* c) {
switch (c->getType()) {
case StructureProperties::TRIANGLE: {
// TRIANGLE (as viewed from outside)
// 1 facet: lines:
// / \ 0,1,2 0,1
// / \ 1,2
// 2-----0 2,0
unsigned idT[3];
idT[0] = c->getStructure(0)->getIndex();
idT[1] = c->getStructure(1)->getIndex();
idT[2] = c->getStructure(2)->getIndex();
equivalent(3, idT);
break;
}
case StructureProperties::QUAD: {
// QUAD
// 3--------2 lines:
// | | 0,1
// | | 1,2
// | | 2,3
// 0--------1 3,0
unsigned idT[4];
idT[0] = c->getStructure(0)->getIndex();
idT[1] = c->getStructure(1)->getIndex();
idT[2] = c->getStructure(2)->getIndex();
idT[3] = c->getStructure(3)->getIndex();
equivalent(4, idT);
break;
}
case StructureProperties::WEDGE: {
// WEDGE
// 1-------------4 facets (quad): facets (triangles): lines:
// /\ . \ 2,5,4,1 0,2,1 0,1 2,5
// / \ / \ 0,1,4,3 3,4,5 0,2 3,4
// 0- - \ - - - 3 \ 2,0,3,5 1,2 4,5
// \ \ \ \ 0,3 5,3
// \ 2-----------\--5 1,4
unsigned int idQ[4];
idQ[0] = c->getStructure(2)->getIndex();
idQ[1] = c->getStructure(5)->getIndex();
idQ[2] = c->getStructure(4)->getIndex();
idQ[3] = c->getStructure(1)->getIndex();
equivalent(4, idQ);
idQ[0] = c->getStructure(0)->getIndex();
idQ[1] = c->getStructure(1)->getIndex();
idQ[2] = c->getStructure(4)->getIndex();
idQ[3] = c->getStructure(3)->getIndex();
equivalent(4, idQ);
idQ[0] = c->getStructure(2)->getIndex();
idQ[1] = c->getStructure(0)->getIndex();
idQ[2] = c->getStructure(3)->getIndex();
idQ[3] = c->getStructure(5)->getIndex();
equivalent(4, idQ);
unsigned int idT[3];
idT[0] = c->getStructure(0)->getIndex();
idT[1] = c->getStructure(2)->getIndex();
idT[2] = c->getStructure(1)->getIndex();
equivalent(3, idT);
idT[0] = c->getStructure(3)->getIndex();
idT[1] = c->getStructure(4)->getIndex();
idT[2] = c->getStructure(5)->getIndex();
equivalent(3, idT);
break;
}
case StructureProperties::TETRAHEDRON: {
// tetrahedron are defined as follow:
// 3
// /| \ So to generate the facet list,
// / | \ we just have to loop on all the
// 1__|___\ 2 tetrahedron and add the corresponding 4 facets :
// \ | / f0=0,1,2 f2=0,3,1
// \ | / f1=0,2,3 f3=2,1,3
// \|/
// 0
unsigned int id[3];
id[0] = c->getStructure(0)->getIndex();
id[1] = c->getStructure(1)->getIndex();
id[2] = c->getStructure(2)->getIndex();
equivalent(3, id);
id[0] = c->getStructure(0)->getIndex();
id[1] = c->getStructure(2)->getIndex();
id[2] = c->getStructure(3)->getIndex();
equivalent(3, id);
id[0] = c->getStructure(0)->getIndex();
id[1] = c->getStructure(3)->getIndex();
id[2] = c->getStructure(1)->getIndex();
equivalent(3, id);
id[0] = c->getStructure(2)->getIndex();
id[1] = c->getStructure(1)->getIndex();
id[2] = c->getStructure(3)->getIndex();
equivalent(3, id);
break;
}
case StructureProperties::HEXAHEDRON: {
// hexahedron are defined as follow:
// 2-------------6
// / \ . \ So to generate the facet list,
// / \ / \ we just have to loop on all the
// 1- - -\ - - - 5 \ hexahedron and add the corresponding 6 facets :
// \ 3-------------7 f0=0,3,2,1 f3=3,7,6,2
// \ / \ / f1=0,4,7,3 f4=1,2,6,5
// \ / . / f2=0,1,5,4 f5=4,5,6,7
// 0-------------4
unsigned int id[4];
id[0] = c->getStructure(0)->getIndex();
id[1] = c->getStructure(3)->getIndex();
id[2] = c->getStructure(2)->getIndex();
id[3] = c->getStructure(1)->getIndex();
equivalent(4, id);
id[0] = c->getStructure(0)->getIndex();
id[1] = c->getStructure(4)->getIndex();
id[2] = c->getStructure(7)->getIndex();
id[3] = c->getStructure(3)->getIndex();
equivalent(4, id);
id[0] = c->getStructure(0)->getIndex();
id[1] = c->getStructure(1)->getIndex();
id[2] = c->getStructure(5)->getIndex();
id[3] = c->getStructure(4)->getIndex();
equivalent(4, id);
id[0] = c->getStructure(3)->getIndex();
id[1] = c->getStructure(7)->getIndex();
id[2] = c->getStructure(6)->getIndex();
id[3] = c->getStructure(2)->getIndex();
equivalent(4, id);
id[0] = c->getStructure(1)->getIndex();
id[1] = c->getStructure(2)->getIndex();
id[2] = c->getStructure(6)->getIndex();
id[3] = c->getStructure(5)->getIndex();
equivalent(4, id);
id[0] = c->getStructure(4)->getIndex();
id[1] = c->getStructure(5)->getIndex();
id[2] = c->getStructure(6)->getIndex();
id[3] = c->getStructure(7)->getIndex();
equivalent(4, id);
break;
}
default:
std::cout << "Cannot generate sub facets for cell #" << c->getIndex() << ": it is not of known type (TRIANGLE, QUAD, WEDGE, HEXAHEDRON or TETRAHEDRON)." << std::endl;
break;
}
}
// -------------------- generateExternalSurface ------------------------
void SurfaceExtractor::generateExternalSurface(StructuralComponent& surface, StructuralComponent& surfacePoints) {
std::set<int> sufSet;
std::set<int>::iterator it;
for (std::vector <Facet*>::iterator it = facets.begin(); it != facets.end(); it++) {
if ((*it)->getUsed() == 1) { // used only once
Cell* c = (*it)->getCell(pm);
surface.addStructure(c);
for (unsigned int j = 0; j < c->getNumberOfStructures(); j++) {
sufSet.insert(dynamic_cast<Atom*>(c->getStructure(j))->getIndex());
}
}
}
for (it = sufSet.begin(); it != sufSet.end(); it++) {
surfacePoints.addStructure(pm->getAtom(*it));
}
}
// -------------------- equivalent ------------------------
void SurfaceExtractor::equivalent(int size, unsigned int id[]) {
std::vector <Facet*>::iterator it;
// look into allFacets for equivalence
it = facets.begin();
while (it != facets.end() && !(*it)->testEquivalence(size, id)) {
it++;
}
// not found => insert
if (it == facets.end()) {
facets.push_back(new Facet(size, id));
}
}
|
