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/*
* Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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.
*/
#ifndef otbOrientationPathFunction_hxx
#define otbOrientationPathFunction_hxx
#include "otbOrientationPathFunction.h"
#include "otbPathFunction.h"
#include "itkNumericTraits.h"
#include "otbMacro.h"
#include "otbMath.h"
namespace otb
{
template <class TInputPath, class TOutput>
void OrientationPathFunction<TInputPath, TOutput>::PrintSelf(std::ostream& os, itk::Indent indent) const
{
this->Superclass::PrintSelf(os, indent);
}
template <class TInputPath, class TOutput>
typename OrientationPathFunction<TInputPath, TOutput>::OutputType OrientationPathFunction<TInputPath, TOutput>::Evaluate(const PathType& path) const
{
VertexListPointer vertexList;
VertexType cindex;
VertexType IndexOut;
int nbPath;
RealType Theta;
vertexList = path.GetVertexList();
nbPath = vertexList->Size();
if (nbPath == 2)
{
cindex = vertexList->GetElement(0);
RealType x1 = cindex[0];
RealType y1 = cindex[1];
cindex = vertexList->GetElement(1);
RealType x2 = cindex[0];
RealType y2 = cindex[1];
Theta = std::atan2(y2 - y1, x2 - x1);
} // IF loop
else
{
itkExceptionMacro(<< "OrientationPathFunction::Evaluate() FAILED -- path must have 2 points");
}
return (static_cast<OutputType>(Theta));
}
template <class TInputPath, class TOutput>
typename OrientationPathFunction<TInputPath, TOutput>::OutputType OrientationPathFunction<TInputPath, TOutput>::Evaluate() const
{
if (!this->GetInputPath())
{
otbMsgDevMacro(<< "Problem with GetInputPath");
return static_cast<OutputType>(itk::NumericTraits<OutputType>::max());
}
OutputType Result = Evaluate(*(this->GetInputPath()));
return Result;
}
} // namespace otb
#endif
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