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
|
/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
// Testcode for the itk::LineIterator.
#include <iostream>
#include <fstream>
#include "itkLineIterator.h"
#include "itkTimeProbe.h"
#include "itkTestingMacros.h"
int
itkLineIteratorTest(int argc, char * argv[])
{
constexpr int Dimension = 2;
using PixelType = unsigned char;
using ImageType = itk::Image<PixelType, Dimension>;
using IndexType = ImageType::RegionType::IndexType;
if (argc < 2)
{
std::cerr << "Usage: " << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " baselinefilename" << std::endl;
return EXIT_FAILURE;
}
// Set up a test image
ImageType::RegionType::IndexType index;
index.Fill(0);
ImageType::RegionType::SizeType size;
size.Fill(200);
ImageType::RegionType region{ index, size };
auto output = ImageType::New();
output->SetRegions(region);
output->AllocateInitialized();
// First test: empty line
IndexType startIndex;
IndexType endIndex;
startIndex[0] = 11;
startIndex[1] = 13;
endIndex[0] = 11;
endIndex[1] = 13;
using LineIteratorType = itk::LineIterator<ImageType>;
LineIteratorType across(output, startIndex, endIndex);
// First test: currentIndex initialization
if (startIndex != across.GetIndex())
{
std::cerr << "Error! Index should be startIndex.\n";
return EXIT_FAILURE;
}
// Second test: IsAtEnd() is one pixel past the endIndex
if (across.IsAtEnd())
{
std::cerr << "Error! Iterator should not be at end.\n";
return EXIT_FAILURE;
}
++across;
if (!across.IsAtEnd())
{
std::cerr << "Error! Iterator should be at end.\n";
return EXIT_FAILURE;
}
// Third test: draw some lines and read the baseline txt file to compare
// the point indexies
std::ifstream baselineFile(argv[1]);
if (baselineFile.fail())
{
std::cerr << "Error opening file with name :" << argv[1] << std::endl;
return EXIT_FAILURE;
}
std::vector<IndexType> baselineIndex;
IndexType tmpIndex;
baselineFile >> tmpIndex[0] >> tmpIndex[1];
while (!baselineFile.eof())
{
baselineIndex.push_back(tmpIndex);
baselineFile >> tmpIndex[0] >> tmpIndex[1];
}
baselineFile.close();
itk::TimeProbe timer;
timer.Start();
startIndex.Fill(10);
endIndex.Fill(189);
LineIteratorType it(output, startIndex, endIndex);
std::vector<IndexType>::iterator itBaseline;
itBaseline = baselineIndex.begin();
while (!it.IsAtEnd())
{
it.Set(255);
if (it.GetIndex() == *itBaseline)
{
++itBaseline;
++it;
}
else
{
std::cerr << "different than baseline." << std::endl;
return EXIT_FAILURE;
}
}
startIndex.Fill(50);
endIndex[0] = 150;
endIndex[1] = startIndex[1];
it = LineIteratorType(output, startIndex, endIndex);
while (!it.IsAtEnd())
{
it.Set(150);
if (it.GetIndex() == *itBaseline)
{
++itBaseline;
++it;
}
else
{
std::cerr << "different than baseline." << std::endl;
return EXIT_FAILURE;
}
}
startIndex.Fill(120);
endIndex[0] = 50;
endIndex[1] = 100;
it = LineIteratorType(output, startIndex, endIndex);
while (!it.IsAtEnd())
{
it.Set(150);
if (it.GetIndex() == *itBaseline)
{
++itBaseline;
++it;
}
else
{
std::cerr << "different than baseline." << std::endl;
return EXIT_FAILURE;
}
}
timer.Stop();
std::cerr << "Line drawing took " << timer.GetMean() << " seconds.\n";
return EXIT_SUCCESS;
}
|
