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
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkQuadEdgeMeshFrontIteratorTest.cxx,v $
Language: C++
Date: $Date: 2007-09-05 18:46:45 $
Version: $Revision: 1.6 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
/**
* This test verifies that a \ref itk::QuadEdgeMesh::FrontIterator walkthrough on
* a Mesh correctly visits all the points. Therefore, we count the points
* and assert that the result is identical to the one obtained with
* \ref itk::QuadEdgeMesh::ComputeNumberOfPoints .
* This can only work when the instance of the Mesh we are considering has
* a single component (possibly multiply connected). In order to verify
* this assumption we use \ref MeshExtractComponentFilter which is based
* on a \ref itk::QuadEdgeMesh::FrontDualIterator. Hence we shall have tested
* both primal and dual version of the front iterator.
*/
#include <set>
#include "itkQuadEdgeMesh.h"
int itkQuadEdgeMeshFrontIteratorTest( int , char *[] )
{
typedef itk::QuadEdgeMesh< double, 3 > MeshType;
typedef MeshType::Pointer MeshPointer;
typedef MeshType::CellsContainer::Iterator CellIterator;
typedef MeshType::PointIdentifier PointIdentifier;
typedef std::set< PointIdentifier > PointIdSet;
typedef MeshType::CellType CellType;
typedef itk::QuadEdgeMeshPolygonCell< CellType > QEPolygonCellType;
typedef MeshType::FrontIterator FrontIterator;
typedef FrontIterator::QEType QEType;
int expectedNumPts = 25;
int expectedNumCells = 32;
std::cout << "expectedNumPts= " << expectedNumPts << std::endl;
std::cout << "expectedNumCells= " << expectedNumCells << std::endl;
/////////////////////////////////////////////////////////////
int simpleSquareCells[96] =
{ 0, 1, 6,
0, 6, 5,
1, 2, 7,
1, 7, 6,
2, 3, 8,
2, 8, 7,
3, 4, 9,
3, 9, 8,
5, 6, 11,
5, 11, 10,
6, 7, 12,
6, 12, 11,
7, 8, 13,
7, 13, 12,
8, 9, 14,
8, 14, 13,
10, 11, 16,
10, 16, 15,
11, 12, 17,
11, 17, 16,
12, 13, 18,
12, 18, 17,
13, 14, 19,
13, 19, 18,
15, 16, 21,
15, 21, 20,
16, 17, 22,
16, 22, 21,
17, 18, 23,
17, 23, 22,
18, 19, 24,
18, 24, 23 };
// Configuration of simpleSquare mesh:
// #Vertices= 25 , #Edges= 56, #Faces= 32, #Boundary= 1, Chi= 1
//
// 20 --------- 21 --------- 22 --------- 23 --------- 24
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | / | / | / | / |
// 15 --------- 16 --------- 17 --------- 18 --------- 19
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | / | / | / | / |
// 10 --------- 11 --------- 12 --------- 13 --------- 14
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | / | / | / | / |
// 5 ---------- 6 ---------- 7 ---------- 8 --------- 9
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | __/ | __/ | __/ | __/ |
// | / | / | / | / |
// 0 ---------- 1 ---------- 2 --------- 3 --------- 4
MeshPointer mesh = MeshType::New();
MeshType::PointType pts[25];
pts[ 0][0] = 0.0; pts[ 0][1] = 0.0; pts[ 0][2] = 0.0;
pts[ 1][0] = 1.0; pts[ 1][1] = 0.0; pts[ 1][2] = 0.0;
pts[ 2][0] = 2.0; pts[ 2][1] = 0.0; pts[ 2][2] = 0.0;
pts[ 3][0] = 3.0; pts[ 3][1] = 0.0; pts[ 3][2] = 0.0;
pts[ 4][0] = 4.0; pts[ 4][1] = 0.0; pts[ 4][2] = 0.0;
pts[ 5][0] = 0.0; pts[ 5][1] = 1.0; pts[ 5][2] = 0.0;
pts[ 6][0] = 1.0; pts[ 6][1] = 1.0; pts[ 6][2] = 0.0;
pts[ 7][0] = 2.0; pts[ 7][1] = 1.0; pts[ 7][2] = 0.0;
pts[ 8][0] = 3.0; pts[ 8][1] = 1.0; pts[ 8][2] = 0.0;
pts[ 9][0] = 4.0; pts[ 9][1] = 1.0; pts[ 9][2] = 0.0;
pts[10][0] = 0.0; pts[10][1] = 2.0; pts[10][2] = 0.0;
pts[11][0] = 1.0; pts[11][1] = 2.0; pts[11][2] = 0.0;
pts[12][0] = 2.0; pts[12][1] = 2.0; pts[12][2] = 0.0;
pts[13][0] = 3.0; pts[13][1] = 2.0; pts[13][2] = 0.0;
pts[14][0] = 4.0; pts[14][1] = 2.0; pts[14][2] = 0.0;
pts[15][0] = 0.0; pts[15][1] = 3.0; pts[15][2] = 0.0;
pts[16][0] = 1.0; pts[16][1] = 3.0; pts[16][2] = 0.0;
pts[17][0] = 2.0; pts[17][1] = 3.0; pts[17][2] = 0.0;
pts[18][0] = 3.0; pts[18][1] = 3.0; pts[18][2] = 0.0;
pts[19][0] = 4.0; pts[19][1] = 3.0; pts[19][2] = 0.0;
pts[20][0] = 0.0; pts[20][1] = 4.0; pts[20][2] = 0.0;
pts[21][0] = 1.0; pts[21][1] = 4.0; pts[21][2] = 0.0;
pts[22][0] = 2.0; pts[22][1] = 4.0; pts[22][2] = 0.0;
pts[23][0] = 3.0; pts[23][1] = 4.0; pts[23][2] = 0.0;
pts[24][0] = 4.0; pts[24][1] = 4.0; pts[24][2] = 0.0;
for(int i=0; i<expectedNumPts; i++)
{
mesh->SetPoint( i, pts[i] );
}
int numPts = mesh->GetNumberOfPoints();
std::cout << "numPts= " << numPts << std::endl;
CellType::CellAutoPointer cellpointer;
QEPolygonCellType *poly;
for(int i=0; i<expectedNumCells; i++)
{
poly = new QEPolygonCellType( 3 );
cellpointer.TakeOwnership( poly );
cellpointer->SetPointId( 0, simpleSquareCells[3*i] );
cellpointer->SetPointId( 1, simpleSquareCells[3*i+1] );
cellpointer->SetPointId( 2, simpleSquareCells[3*i+2] );
mesh->SetCell( i, cellpointer );
}
int numCells = mesh->GetNumberOfCells();
std::cout << "numCells= " << numCells << std::endl;
// Use a FrontIterator (Primal) to visit the points.
PointIdSet visitedSet;
for( FrontIterator it = mesh->BeginFront();
it != mesh->EndFront(); it++ )
{
QEType* edge = it.Value();
PointIdentifier origin = edge->GetOrigin();
PointIdentifier destination = edge->GetDestination();
if( !visitedSet.count( origin ) )
{
visitedSet.insert( origin );
}
if( !visitedSet.count( destination ) )
{
visitedSet.insert( destination );
}
}
// Compare with Mesh container iteration version
int numberOfPoints = visitedSet.size();
int computedNumberOfPoints = mesh->ComputeNumberOfPoints();
std::cout << "numberOfPoints " << numberOfPoints << std::endl;
std::cout << "computedNumberOfPoints= " << computedNumberOfPoints
<< std::endl;
if( computedNumberOfPoints == numberOfPoints )
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
