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/*
* Copyright (C) 2005-2022 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 otbSentinel1CalibrationLookupData_h
#define otbSentinel1CalibrationLookupData_h
#include "otbSarImageMetadataInterface.h"
namespace otb
{
/**
* \struct Sentinel1CalibrationStruct
* \brief Structure holding a calibration vector from Sentinel1 annotation files
*
* \ingroup OTBMetadata
*/
struct Sentinel1CalibrationStruct
{
public:
double timeMJD;
double deltaMJD; // time difference to previous MJD in the list
int line;
std::vector<int> pixels;
std::vector<double> deltaPixels;
std::vector<float> vect;
/** Keywordlist export */
void ToKeywordlist(MetaData::Keywordlist & kwl, const std::string & prefix) const;
/** Keywordlist import */
static Sentinel1CalibrationStruct FromKeywordlist(const MetaData::Keywordlist & kwl, const std::string & prefix);
};
/**
* \class Sentinel1CalibrationLookupData
* \brief Computes the Sentinel 1 calibration contribution for the given pixel using a LUT. Depending on how
* it is initialized, the LUT can be a ALPHA, BETA, SIGMA or DN calibration LUT
*
* \ingroup OTBMetadata
*/
class Sentinel1CalibrationLookupData : public SarCalibrationLookupData
{
public:
/** Standard typedefs */
typedef Sentinel1CalibrationLookupData Self;
typedef SarCalibrationLookupData Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Creation through the object factory */
itkNewMacro(Self);
/** RTTI */
itkTypeMacro(Sentinel1CalibrationLookupData, SarCalibrationLookupData);
typedef itk::IndexValueType IndexValueType;
Sentinel1CalibrationLookupData();
~Sentinel1CalibrationLookupData() override = default;
void InitParameters(short type, double ft, double lt, int lines, int c, std::vector<Sentinel1CalibrationStruct> const& vlist);
double GetValue(const IndexValueType x, const IndexValueType y) const override;
int GetVectorIndex(int y) const;
int GetPixelIndex(int x, const Sentinel1CalibrationStruct& calVec) const;
/** Keywordlist export */
void ToKeywordlist(MetaData::Keywordlist & kwl, const std::string & prefix) const override;
/** Keywordlist import */
void FromKeywordlist(const MetaData::Keywordlist & kwl, const std::string & prefix) override;
private:
Sentinel1CalibrationLookupData(const Self&) = delete;
void operator=(const Self&) = delete;
double firstLineTime;
double lastLineTime;
int numOfLines;
int count;
std::vector<Sentinel1CalibrationStruct> calibrationVectorList;
double lineTimeInterval;
};
} // namespace otb
#endif
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