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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkIdentityTransformTest.cxx,v $
Language: C++
Date: $Date: 2003-09-10 14:30:09 $
Version: $Revision: 1.3 $
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
#include <iostream>
#include "itkIdentityTransform.h"
int itkIdentityTransformTest(int ,char *[] )
{
std::cout << "==================================" << std::endl;
std::cout << "Testing Identity Transform " << std::endl << std::endl;
const double epsilon = 1e-10;
const unsigned int N = 2;
bool Ok = true;
typedef itk::IdentityTransform<double> IdentityTransformType;
IdentityTransformType::Pointer transform = IdentityTransformType::New();
std::cout << "Testing TransformPoint: ";
IdentityTransformType::InputPointType::ValueType pInit[2] = {10,10};
IdentityTransformType::InputPointType p = pInit;
IdentityTransformType::OutputPointType r;
r = transform->TransformPoint( p );
for(unsigned int i=0; i<N; i++)
{
if( fabs( p[i]- r[i] ) > epsilon )
{
Ok = false;
break;
}
}
if( !Ok )
{
std::cerr << "Error Transforming Point" << std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << " [ PASSED ] " << std::endl;
}
// Test TransformVector
std::cout << "Testing TransformVector: ";
IdentityTransformType::InputVectorType vin;
vin[0] = 1;
vin[1] = 2;
IdentityTransformType::OutputVectorType vout;
vout = transform->TransformVector( vin );
for(unsigned int i=0; i<N; i++)
{
if( fabs( vout[i]-vin[i] ) > epsilon )
{
Ok = false;
break;
}
}
if( !Ok )
{
std::cerr << "Error with TransformVector itk::Vector" << std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << " [ PASSED ] " << std::endl;
}
// Test TransformVector vnl_vector
std::cout << "Testing TransformVector (vnl): ";
IdentityTransformType::InputVnlVectorType vnlin;
vnlin[0] = 1;
vnlin[1] = 2;
IdentityTransformType::OutputVnlVectorType vnlout;
vnlout = transform->TransformVector( vnlin );
for(unsigned int i=0; i<N; i++)
{
if( fabs( vnlout[i]-vnlin[i] ) > epsilon )
{
Ok = false;
break;
}
}
if( !Ok )
{
std::cerr << "Error with TransformVector vnlVector" << std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << " [ PASSED ] " << std::endl;
}
// Test TransformCovariantVector
std::cout << "Testing TransformCovariantVector: ";
IdentityTransformType::InputCovariantVectorType vcin;
vcin[0] = 1;
vcin[1] = 2;
IdentityTransformType::OutputCovariantVectorType vcout;
vcout = transform->TransformCovariantVector( vcin );
for(unsigned int i=0; i<N; i++)
{
if( fabs( vcout[i]-vcin[i] ) > epsilon )
{
Ok = false;
break;
}
}
if( !Ok )
{
std::cerr << "Error with TransformVector CovariantVector" << std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << " [ PASSED ] " << std::endl;
}
// Test the Set/Get Parameters
std::cout << "Testing Set/GetParameters():";
IdentityTransformType::ParametersType params(1);
transform->SetParameters(params);
std::cout << " [ PASSED ] " << std::endl;
// Testing the Jacobian
std::cout << "Testing Jacobian: ";
IdentityTransformType::JacobianType jacobian = transform->GetJacobian(p);
if(
(jacobian[0][0] != 0.0) || (jacobian[1][0] != 0.0))
{
std::cerr << "Error with Jacobian: " << jacobian << std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << " [ PASSED ] " << std::endl;
}
return EXIT_SUCCESS;
}
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