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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 "itkAzimuthElevationToCartesianTransform.h"
template< typename TPoint >
void PrintPoint( const TPoint & p )
{
for( unsigned int i=0; i < TPoint::PointDimension; ++i)
{
std::cout << p[i] << ", ";
}
std::cout << std::endl;
}
int itkAzimuthElevationToCartesianTransformTest(int, char *[])
{
typedef double CoordinateRepresentationType;
typedef itk::Point<CoordinateRepresentationType,3> PointType;
const CoordinateRepresentationType ACCEPTABLE_ERROR = 1E-10;
typedef itk::AzimuthElevationToCartesianTransform<
CoordinateRepresentationType
> AzimuthElevationToCartesianTransformType;
AzimuthElevationToCartesianTransformType::Pointer transform =
AzimuthElevationToCartesianTransformType::New();
transform->SetAzimuthElevationToCartesianParameters(1.0,5.0,45,45);
// test a bunch of points in all quadrants and those that could create exceptions
PointType q;
std::vector<PointType> p;
q[0] = 1;
q[1] = 1;
q[2] = 1;
p.push_back(q);
q[0] = 1;
q[1] = 1;
q[2] = -1;
p.push_back(q);
q[0] = 1;
q[1] = -1;
q[2] = 1;
p.push_back(q);
q[0] = 1;
q[1] = -1;
q[2] = -1;
p.push_back(q);
q[0] = -1;
q[1] = 1;
q[2] = 1;
p.push_back(q);
q[0] = -1;
q[1] = 1;
q[2] = -1;
p.push_back(q);
q[0] = -1;
q[1] = -1;
q[2] = 1;
p.push_back(q);
q[0] = -1;
q[1] = -1;
q[2] = -1;
p.push_back(q);
q[0] = -1;
q[1] = 1;
q[2] = 0;
p.push_back(q);
q[0] = 0;
q[1] = 1;
q[2] = 0;
p.push_back(q);
std::cout << "\n\n\t\t\tTransform Info:\n\n";
transform->Print(std::cout);
std::cout << "\n\n--------\n\n";
for (unsigned int j = 0; j < p.size(); ++j)
{
std::cout << "original values of (theta,phi,r) p = " << std::endl;
PrintPoint< PointType >(p.at(j));
transform->SetForwardAzimuthElevationToCartesian();
PointType answer = transform->TransformPoint(p.at(j));
PrintPoint< PointType >(answer);
PointType answerBackwards = transform->BackTransformPoint(answer);
PrintPoint< PointType >(answerBackwards);
transform->SetForwardCartesianToAzimuthElevation();
PointType reverseDirectionAnswer = transform->BackTransformPoint(answerBackwards);
PrintPoint< PointType >(reverseDirectionAnswer);
PointType reverseDirectionAnswerBackwards = transform->TransformPoint(reverseDirectionAnswer);
PrintPoint< PointType >(reverseDirectionAnswerBackwards);
std::cout << "\n\n--------\n\n";
bool same = true;
for (unsigned int i = 0; i < PointType::PointDimension && same; ++i)
{
same = ((itk::Math::abs(p.at(j)[i] - answerBackwards[i]) < ACCEPTABLE_ERROR) &&
(itk::Math::abs(p.at(j)[i] - reverseDirectionAnswerBackwards[i]) < ACCEPTABLE_ERROR) &&
(itk::Math::abs(answer[i] - reverseDirectionAnswer[i]) < ACCEPTABLE_ERROR));
}
if (!same)
{
std::cout << "itkAzimuthElevationToCartesianTransformTest failed" << std::endl;
return EXIT_FAILURE;
}
}
// Check if itkAzimuthElevationToCartesianTransform returns the correct
// TransformCategory.
if(transform->GetTransformCategory() != AzimuthElevationToCartesianTransformType::UnknownTransformCategory)
{
std::cout << "itkAzimuthElevationToCartesianTransformTest failed" << std::endl;
return EXIT_FAILURE;
}
std::cout << "itkAzimuthElevationToCartesianTransformTest passed" <<std::endl;
return EXIT_SUCCESS;
}
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