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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 <iostream>
#include "itkFourierSeriesPath.h"
int itkFourierSeriesPathTest(int, char*[])
{
typedef itk::FourierSeriesPath<2> PathType;
typedef PathType::InputType InputType;
typedef PathType::OffsetType OffsetType;
typedef PathType::VectorType VectorType;
bool passed = true;
InputType input;
OffsetType offset;
VectorType cosV, sinV, v;
PathType::Pointer path = PathType::New();
// Average value is (5,5)
cosV.Fill(5);
sinV.Fill(0);
path->AddHarmonic( cosV, sinV );
cosV.Fill(2.7);
sinV.Fill(3.2);
path->AddHarmonic( cosV, sinV );
std::cout << "Evaluating at 0, 0.5, and 1.0: " << path->Evaluate(0) << ", "
<< path->Evaluate(0.5) << ", " << path->Evaluate(1.0) << std::endl;
// Floating point can be inprecise, so convert to rounded int for comparison:
if( int(0.5+1000*(path->Evaluate(1.0))[0]) !=
int(0.5+1000*(path->Evaluate(0.0))[0]) ||
int(0.5+1000*(path->Evaluate(1.0))[1]) !=
int(0.5+1000*(path->Evaluate(0.0))[1]) )
{
std::cout << "FourierSeriesPathTest: Evaluate() Failed" << std::endl;
passed = false;
}
std::cout << "Evaluating to an index at 0, 0.5, and 1.0: "
<< path->EvaluateToIndex(0) << ", " << path->EvaluateToIndex(0.5)
<< ", " << path->EvaluateToIndex(1.0) << std::endl;
if( (path->EvaluateToIndex(1.0)) != (path->EvaluateToIndex(0.0)) )
{
std::cout << "FourierSeriesPathTest: EvaluateToIndex() Failed" << std::endl;
passed = false;
}
std::cout << "Evaluating the derivative at 0, 0.5, and 1.0: "
<< path->EvaluateDerivative(0) << ", " << path->EvaluateDerivative(0.5)
<< ", " << path->EvaluateDerivative(1.0) << std::endl;
// Floating point can be inprecise, so convert to rounded int for comparison:
if( int(0.5+1000*(path->EvaluateDerivative(1.0))[0]) !=
int(0.5+1000*(path->EvaluateDerivative(0.0))[0]) ||
int(0.5+1000*(path->EvaluateDerivative(1.0))[1]) !=
int(0.5+1000*(path->EvaluateDerivative(0.0))[1]) )
{
std::cout << "FourierSeriesPathTest: EvaluateDerivative() Failed" << std::endl;
passed = false;
}
input = 0;
offset = path->IncrementInput( input );
std::cout << "Incrementing the input from 0 to "<<input<<": " << offset << std::endl;
input = 0.5;
offset = path->IncrementInput( input );
std::cout << "Incrementing the input from 0.5 to "<<input<<": " << offset << std::endl;
if( offset[0]!=-1 || offset[1]!=-1 )
{
std::cout << "FourierSeriesPathTest: IncrementInput() Failed" << std::endl;
passed = false;
}
if (passed)
{
std::cout << "FourierSeries tests passed" << std::endl;
return EXIT_SUCCESS;
}
else
{
std::cout << "FourierSeries tests failed" << std::endl;
return EXIT_FAILURE;
}
}
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