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
|
/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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.
*
*=========================================================================*/
#include <iostream>
#include "itkDistanceToCentroidMembershipFunction.h"
int itkDistanceToCentroidMembershipFunctionTest(int, char* [] )
{
const unsigned int MeasurementVectorSize = 3;
typedef itk::FixedArray<
float, MeasurementVectorSize > MeasurementVectorType;
typedef itk::Statistics::DistanceToCentroidMembershipFunction<
MeasurementVectorType > MembershipFunctionType;
MembershipFunctionType::Pointer function = MembershipFunctionType::New();
std::cout << function->GetNameOfClass() << std::endl;
//set the distance metric type
typedef itk::Statistics::EuclideanDistanceMetric< MeasurementVectorType > DistanceMetricType;
typedef DistanceMetricType::MeasurementVectorSizeType MeasurementVectorSizeType;
DistanceMetricType::Pointer distanceMetric = DistanceMetricType::New();
function->SetDistanceMetric( distanceMetric );
if( function->GetDistanceMetric() != distanceMetric )
{
std::cerr << "Error in GetDistanceMetric() " << std::endl;
return EXIT_FAILURE;
}
function->Print(std::cout);
function->SetMeasurementVectorSize( MeasurementVectorSize ); // for code coverage
if( function->GetMeasurementVectorSize() != MeasurementVectorSize )
{
std::cerr << "GetMeasurementVectorSize() Failed !" << std::endl;
return EXIT_FAILURE;
}
//Test if an exception will be thrown if we try to resize the measurement vector
//size
try
{
MeasurementVectorSizeType measurementVector2 = MeasurementVectorSize + 1;
function->SetMeasurementVectorSize( measurementVector2 );
std::cerr << "Exception should have been thrown since we are trying to resize\
non-resizeable measurement vector type " << std::endl;
return EXIT_FAILURE;
}
catch( itk::ExceptionObject & excp )
{
std::cerr << "Caughted expected exception: " << excp << std::endl;
}
//Test if the distance computed is correct
MembershipFunctionType::CentroidType origin;
::itk::NumericTraits<MembershipFunctionType::CentroidType>::SetLength( origin, 3);
origin[0] = 1.5;
origin[1] = 2.3;
origin[2] = 1.0;
function->SetCentroid( origin );
const double tolerance = 0.001;
if( std::fabs( function->GetCentroid()[0] - origin[0]) > tolerance ||
std::fabs( function->GetCentroid()[1] - origin[1]) > tolerance ||
std::fabs( function->GetCentroid()[2] - origin[2]) > tolerance )
{
std::cerr << "Error in GetCentroid() method" << std::endl;
return EXIT_FAILURE;
}
MeasurementVectorType measurement;
::itk::NumericTraits<MeasurementVectorType>::SetLength( measurement, 3);
measurement[0] = 2.5;
measurement[1] = 3.3;
measurement[2] = 4.0;
double trueValue = 3.31662;
double distanceComputed = function->Evaluate( measurement );
if( std::fabs( distanceComputed - trueValue) > tolerance )
{
std::cerr << "Distance computed not correct: " << "truevalue= " << trueValue
<< "ComputedValue=" << distanceComputed << std::endl;
return EXIT_FAILURE;
}
// Exercise the Clone method.
MembershipFunctionType::Pointer clonedFunction = function->Clone();
if( clonedFunction.IsNull() )
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
