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/*=========================================================================
*
* 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 "itkDistanceMetric.h"
namespace itk {
namespace Statistics {
namespace DistanceMetricTest {
template <typename TMeasurementVector>
class MyDistanceMetric : public DistanceMetric< TMeasurementVector >
{
public:
/** Standard class typedef. */
typedef MyDistanceMetric Self;
typedef DistanceMetric< TMeasurementVector > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Standard macros */
itkTypeMacro(MyDistanceMetric, DistanceMetric);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Evaluate membership score */
double Evaluate(const TMeasurementVector & ) const ITK_OVERRIDE
{
double score;
score = 1;
return score;
}
double Evaluate(const TMeasurementVector &, const TMeasurementVector & ) const ITK_OVERRIDE
{
double score;
score = 1;
return score;
}
};
}
}
}
int itkDistanceMetricTest(int, char* [] )
{
typedef unsigned int MeasurementVectorSizeType;
const MeasurementVectorSizeType MeasurementVectorSize = 17;
typedef itk::FixedArray<
float, MeasurementVectorSize > MeasurementVectorType;
typedef itk::Statistics::DistanceMetricTest::MyDistanceMetric<
MeasurementVectorType > DistanceMetricType;
typedef DistanceMetricType::MeasurementVectorSizeType MeasurementVectorSizeType;
DistanceMetricType::Pointer distance = DistanceMetricType::New();
std::cout << distance->GetNameOfClass() << std::endl;
std::cout << distance->DistanceMetricType::Superclass::GetNameOfClass() << std::endl;
distance->Print(std::cout);
//try changing the measurment vector size, it should throw an exception
try
{
MeasurementVectorSizeType newSize = 20;
distance->SetMeasurementVectorSize( newSize );
std::cerr << "Changing measurement vector size is not allowed for a fixed array vector\n"
<< "an exception should have been thrown" << std::endl;
return EXIT_FAILURE;
}
catch( itk::ExceptionObject & excpt )
{
std::cerr << "Exception thrown: " << excpt << std::endl;
}
//try re-setting the measurment vector size to the same value, no exceptins should be
//thrown
try
{
MeasurementVectorSizeType sameSize = 17;
distance->SetMeasurementVectorSize( sameSize );
}
catch( itk::ExceptionObject & excpt )
{
std::cerr << "Exception thrown: " << excpt << std::endl;
return EXIT_FAILURE;
}
//try setting an origin vector with a different size it should throw an exception
try
{
DistanceMetricType::OriginType origin;
MeasurementVectorSizeType newSize = 25;
origin.SetSize( newSize );
distance->SetOrigin( origin );
std::cerr << "Attempting to set an origin vector with a different size,"
<< "should result in an exception" << std::endl;
return EXIT_FAILURE;
}
catch( itk::ExceptionObject & excpt )
{
std::cerr << "Exception thrown: " << excpt << std::endl;
}
return EXIT_SUCCESS;
}
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