isce3::geometry::Geo2rdr Class Reference

Transformer from map coordinates to radar geometry coordinates. More...

#include <Geo2rdr.h>

Inheritance diagram for isce3::geometry::Geo2rdr:

Public Member Functions
	Geo2rdr (const isce3::product::Product &, char frequency= 'A', bool nativeDoppler=false)
	Constructor from product. More...
	Geo2rdr (const isce3::core::Ellipsoid &, const isce3::core::Orbit &, const isce3::core::LUT2d< double > &, const isce3::core::Metadata &)
	Constructor from core objects. More...
	Geo2rdr (const isce3::product::RadarGridParameters &radarGrid, const isce3::core::Orbit &orbit, const isce3::core::Ellipsoid &ellipsoid, const isce3::core::LUT2d< double > &doppler={})
	Constructor from core objects. More...
void	threshold (double t)
	Set convergence threshold. More...
void	numiter (int n)
	Set number of Newton-Raphson iterations. More...
void	geo2rdr (isce3::io::Raster &topoRaster, isce3::io::Raster &rgoffRaster, isce3::io::Raster &azoffRaster, double azshift=0.0, double rgshift=0.0)
	Run geo2rdr with offsets and externally created offset rasters. More...
void	geo2rdr (isce3::io::Raster &topoRaster, const std::string &outdir, double azshift=0.0, double rgshift=0.0)
	Run geo2rdr with constant offsets and internally created offset rasters. More...
const isce3::core::Orbit &	orbit () const
	Get Orbit object used for processing.
const isce3::core::Ellipsoid &	ellipsoid () const
	Get Ellipsoid object used for processing.
const isce3::core::LUT2d < double > &	doppler () const
	Get Doppler model used for processing.
const isce3::product::RadarGridParameters &	radarGridParameters () const
	Get read-only reference to RadarGridParameters.
double	threshold () const
	Return the azimuth time convergence threshold used for processing.
int	numiter () const
	Return number of Newton-Raphson iterations used for processing.

Public Attributes
const double	NULL_VALUE = -1.0e6
	NoData Value.

Detailed Description

Transformer from map coordinates to radar geometry coordinates.

See geometry overview for description of the algorithm.

Constructor & Destructor Documentation

isce3::geometry::Geo2rdr::Geo2rdr ( const isce3::product::Product &  product, char  frequency = 'A', bool  nativeDoppler = false  )

inline

Constructor from product.

Parameters

[in]	product	Input Product
[in]	frequency	Frequency designation
[in]	nativeDoppler	Flag for using native Doppler frequencies instead of zero-Doppler

isce3::geometry::Geo2rdr::Geo2rdr ( const isce3::core::Ellipsoid &  ellipsoid, const isce3::core::Orbit &  orbit, const isce3::core::LUT2d< double > &  doppler, const isce3::core::Metadata &  meta  )

inline

Constructor from core objects.

Parameters

[in]	ellipsoid	Ellipsoid object
[in]	orbit	Orbit object
[in]	doppler	LUT1d doppler model
[in]	meta	Metadata object

isce3::geometry::Geo2rdr::Geo2rdr ( const isce3::product::RadarGridParameters &  radarGrid, const isce3::core::Orbit &  orbit, const isce3::core::Ellipsoid &  ellipsoid, const isce3::core::LUT2d< double > &  doppler = {}  )

inline

Constructor from core objects.

Parameters

[in]	radarGrid	RadarGridParameters object
[in]	orbit	Orbit object
[in]	ellipsoid	Ellipsoid object
[in]	doppler	LUT2d doppler model

Member Function Documentation

void isce3::geometry::Geo2rdr::geo2rdr	(	isce3::io::Raster &	topoRaster,
		isce3::io::Raster &	rgoffRaster,
		isce3::io::Raster &	azoffRaster,
		double	azshift = 0.0,
		double	rgshift = 0.0
	)

Run geo2rdr with offsets and externally created offset rasters.

Parameters

[in]	topoRaster	outputs of topo - i.e, pixel-by-pixel x,y,h as bands
[in]	outdir	directory to write outputs to
[in]	rgoffRaster	range offset output
[in]	azoffRaster	azimuth offset output
[in]	azshift	Number of lines to shift by in azimuth
[in]	rgshift	Number of pixels to shift by in range

void isce3::geometry::Geo2rdr::geo2rdr	(	isce3::io::Raster &	topoRaster,
		const std::string &	outdir,
		double	azshift = 0.0,
		double	rgshift = 0.0
	)

Run geo2rdr with constant offsets and internally created offset rasters.

This is the main geo2rdr driver. The pixel-by-pixel output filenames are fixed for now

• azimuth.off - Azimuth offset to be applied to product to align with topoRaster

• range.off - Range offset to be applied to product to align with topoRaster

  Parameters

  [in]	topoRaster	outputs of topo -i.e, pixel-by-pixel x,y,h as bands
  [in]	outdir	directory to write outputs to
  [in]	azshift	Number of lines to shift by in azimuth
  [in]	rgshift	Number of pixels to shift by in range

void isce3::geometry::Geo2rdr::numiter ( int  n )

inline

Set number of Newton-Raphson iterations.

Parameters

[in]

n

Max number of Newton-Raphson iterations

void isce3::geometry::Geo2rdr::threshold ( double  t )

inline

Set convergence threshold.

Parameters

[in]

t

Azimuth time convergence threshold in seconds

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The documentation for this class was generated from the following files:

• isce/cxx/isce3/geometry/Geo2rdr.h
• isce/cxx/isce3/geometry/Geo2rdr.cpp
• isce/cxx/isce3/geometry/Geo2rdr.icc