/usr/include/OTB-6.4/otbGroundSpacingImageFunction.h is in libotb-dev 6.4.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2005-2017 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 otbGroundSpacingImageFunction_h
#define otbGroundSpacingImageFunction_h
#include "itkImageFunction.h"
#include "itkNumericTraits.h"
#include "otbGenericRSTransform.h"
namespace otb
{
/**
* \class GroundSpacingImageFunction
* \brief Calculate the approximate ground spacing in X and Y directions
*
* This uses the 'Haversine' formula to calculate great-circle distances between
* the two points (that is, the shortest distance over the Earth's surface)
* giving an 'as-the-crow-flies' distance between the points (ignoring any hills!).
*
* \ingroup ImageFunctions
*
* \ingroup OTBProjection
*/
template <class TInputImage, class TCoordRep = float>
class ITK_EXPORT GroundSpacingImageFunction :
public itk::ImageFunction<TInputImage, itk::Vector<float, 2>,
TCoordRep>
{
public:
/** Standard class typedefs. */
typedef GroundSpacingImageFunction Self;
/** Datatype used for the density */
typedef float ValueType;
//typedef std::pair<ValueType, ValueType> FloatType;
typedef itk::Vector<ValueType, 2> FloatType;
typedef itk::ImageFunction<TInputImage, FloatType ,
TCoordRep> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(GroundSpacingImageFunction, itk::ImageFunction);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** InputImageType typedef support. */
typedef TInputImage InputImageType;
typedef typename Superclass::OutputType OutputType;
typedef typename Superclass::IndexType IndexType;
typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
typedef typename Superclass::PointType PointType;
typedef otb::GenericRSTransform<double> TransformType;
typedef typename IndexType::IndexValueType IndexValueType;
itkStaticConstMacro(ImageDimension, unsigned int, InputImageType::ImageDimension);
/** Evalulate the function at specified index */
FloatType EvaluateAtIndex(const IndexType& index) const ITK_OVERRIDE;
/** Evaluate the function at non-integer positions */
FloatType Evaluate(const PointType& point) const ITK_OVERRIDE
{
IndexType index;
this->ConvertPointToNearestIndex(point, index);
return this->EvaluateAtIndex(index);
}
FloatType EvaluateAtContinuousIndex(
const ContinuousIndexType& cindex) const ITK_OVERRIDE
{
IndexType index;
this->ConvertContinuousIndexToNearestIndex(cindex, index);
return this->EvaluateAtIndex(index);
}
PointType GetPixelLocation(const IndexType& index) const;
protected:
GroundSpacingImageFunction();
~GroundSpacingImageFunction() ITK_OVERRIDE{}
void PrintSelf(std::ostream& os, itk::Indent indent) const ITK_OVERRIDE;
private:
GroundSpacingImageFunction(const Self &); //purposely not implemented
void operator =(const Self&); //purposely not implemented
ValueType m_R;
ValueType m_Deg2radCoef;
};
} // end namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
# include "otbGroundSpacingImageFunction.txx"
#endif
#endif
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