geometry.h

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// -*- C++ -*-
// -*- coding: utf-8 -*-
//
// Author: Bryan Riel
// Copyright 2017-2018
//
#pragma once

#include "forward.h"

#include <isce3/core/forward.h>
#include <isce3/product/forward.h>
#include <isce3/core/Constants.h>

// Declaration
namespace isce3 {
namespace geometry {

int rdr2geo(double aztime, double slantRange, double doppler,
            const isce3::core::Orbit & orbit,
            const isce3::core::Ellipsoid & ellipsoid,
            const DEMInterpolator & demInterp,
            isce3::core::Vec3 & targetLLH,
            double wvl, isce3::core::LookSide side, double threshold,
            int maxIter, int extraIter);

int rdr2geo(const isce3::core::Pixel & pixel,
            const isce3::core::Basis & TCNbasis,
            const isce3::core::Vec3& pos,
            const isce3::core::Vec3& vel,
            const isce3::core::Ellipsoid & ellipsoid,
            const DEMInterpolator & demInterp,
            isce3::core::Vec3 & targetLLH,
            isce3::core::LookSide side,
            double threshold, int maxIter, int extraIter);

int rdr2geo(const isce3::core::Vec3& radarXYZ,
            const isce3::core::Vec3& axis, double angle,
            double range, const DEMInterpolator& dem,
            isce3::core::Vec3& targetXYZ, isce3::core::LookSide side,
            double threshold, int maxIter, int extraIter);

int geo2rdr(const isce3::core::Vec3 & inputLLH,
            const isce3::core::Ellipsoid & ellipsoid,
            const isce3::core::Orbit & orbit,
            const isce3::core::Poly2d & doppler,
            double & aztime, double & slantRange,
            double wavelength, double startingRange,
            double rangePixelSpacing, size_t rwidth, isce3::core::LookSide side,
            double threshold, int maxIter, double deltaRange);

int geo2rdr(const isce3::core::Vec3 & inputLLH,
            const isce3::core::Ellipsoid & ellipsoid,
            const isce3::core::Orbit & orbit,
            const isce3::core::LUT2d<double> & doppler,
            double & aztime, double & slantRange,
            double wavelength, isce3::core::LookSide side, double threshold,
            int maxIter, double deltaRange);

void computeDEMBounds(const isce3::core::Orbit & orbit,
                      const isce3::core::Ellipsoid & ellipsoid,
                      const isce3::core::LUT2d<double> & doppler,
                      const isce3::product::RadarGridParameters & radarGrid,
                      size_t xoff,
                      size_t yoff,
                      size_t xsize,
                      size_t ysize,
                      double margin,
                      double & min_lon,
                      double & min_lat,
                      double & max_lon,
                      double & max_lat);

template <class T>
double _compute_doppler_aztime_diff(isce3::core::Vec3 dr, isce3::core::Vec3 satvel,
                                    T & doppler, double wavelength,
                                    double aztime, double slantRange,
                                    double deltaRange);
}
}