/usr/include/OTB-5.8/otbGroundSpacingImageFunction.txx is in libotb-dev 5.8.0+dfsg-3.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
Copyright (c) CS Systemes d'information. All rights reserved.
See CSCopyright.txt 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.
=========================================================================*/
#ifndef otbGroundSpacingImageFunction_txx
#define otbGroundSpacingImageFunction_txx
#include "otbMath.h"
#include "itkConstNeighborhoodIterator.h"
#include "otbGroundSpacingImageFunction.h"
namespace otb
{
/**
* Constructor
*/
template <class TInputImage, class TCoordRep>
GroundSpacingImageFunction<TInputImage, TCoordRep>
::GroundSpacingImageFunction()
{
m_R = 6371000;
m_Deg2radCoef = CONST_PI / 180;
}
/**
*
*/
template <class TInputImage, class TCoordRep>
void
GroundSpacingImageFunction<TInputImage, TCoordRep>
::PrintSelf(std::ostream& os, itk::Indent indent) const
{
this->Superclass::PrintSelf(os, indent);
}
/**
*
*/
template <class TInputImage, class TCoordRep>
typename GroundSpacingImageFunction<TInputImage, TCoordRep>
::FloatType
GroundSpacingImageFunction<TInputImage, TCoordRep>
::EvaluateAtIndex(const IndexType& index) const
{
FloatType var;
if (!this->GetInputImage())
{
var.Fill(itk::NumericTraits<ValueType>::min());
return var;
}
PointType point = this->GetPixelLocation(index);
IndexType indexSrcX, indexSrcY;
indexSrcX[0] =
static_cast<IndexValueType>(vcl_fabs(static_cast<ValueType>(this->GetInputImage()->GetLargestPossibleRegion().
GetSize()[0] -
index[0]))); // x position
indexSrcX[1] = index[1]; // y position
indexSrcY[0] = index[0]; // x position
indexSrcY[1] =
static_cast<IndexValueType>(vcl_fabs(static_cast<ValueType>(this->GetInputImage()->GetLargestPossibleRegion().
GetSize()[1] -
index[1])));
PointType pointSrcX = this->GetPixelLocation(indexSrcX);
PointType pointSrcY = this->GetPixelLocation(indexSrcY);
ValueType dLatX = (vcl_fabs(pointSrcX[1] - point[1])) * m_Deg2radCoef;
ValueType dLonX = (vcl_fabs(pointSrcX[0] - point[0])) * m_Deg2radCoef;
const ValueType One = itk::NumericTraits<ValueType>::One;
const ValueType Two = One + One;
ValueType aX = vcl_sin(dLatX / Two) * vcl_sin(dLatX / Two) + vcl_cos(point[1] * m_Deg2radCoef) * vcl_cos(
pointSrcX[1] * m_Deg2radCoef) * vcl_sin(dLonX / Two) * vcl_sin(dLonX / Two);
ValueType cX = Two * vcl_atan2(vcl_sqrt(aX), vcl_sqrt(One - aX));
ValueType dX = m_R * cX;
ValueType dLatY = (vcl_fabs(pointSrcY[1] - point[1])) * m_Deg2radCoef;
ValueType dLonY = (vcl_fabs(pointSrcY[0] - point[0])) * m_Deg2radCoef;
ValueType aY = vcl_sin(dLatY / Two) * vcl_sin(dLatY / Two) + vcl_cos(point[1] * m_Deg2radCoef) * vcl_cos(
pointSrcY[1] * m_Deg2radCoef) * vcl_sin(dLonY / Two) * vcl_sin(dLonY / Two);
ValueType cY = Two * vcl_atan2(vcl_sqrt(aY), vcl_sqrt(One - aY));
ValueType dY = m_R * cY;
//FloatType var;
var[0] = dX / (vcl_fabs(static_cast<ValueType>(indexSrcX[0] - index[0])));
var[1] = dY / (vcl_fabs(static_cast<ValueType>(indexSrcY[1] - index[1])));
return var;
}
template <class TInputImage, class TCoordRep>
typename GroundSpacingImageFunction<TInputImage, TCoordRep>
::PointType
GroundSpacingImageFunction<TInputImage, TCoordRep>
::GetPixelLocation(const IndexType& index) const
{
PointType inputPoint;
inputPoint[0] = index[0];
inputPoint[1] = index[1];
if (!this->GetInputImage())
{
itkExceptionMacro(<< "No input image!");
}
TransformType::Pointer transform = TransformType::New();
const itk::MetaDataDictionary& inputDict = this->GetInputImage()->GetMetaDataDictionary();
transform->SetInputDictionary(inputDict);
transform->SetInputOrigin(this->GetInputImage()->GetOrigin());
transform->SetInputSpacing(this->GetInputImage()->GetSpacing());
transform->InstantiateTransform();
return transform->TransformPoint(inputPoint);
}
} // end namespace otb
#endif
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