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::RadarGridProduct &, char frequency='A', bool nativeDoppler=false)
	Constructor from product.
	Geo2rdr (const isce3::core::Ellipsoid &, const isce3::core::Orbit &, const isce3::core::LUT2d< double > &, const isce3::core::Metadata &)
	Constructor from core objects.
	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.
void	threshold (double t)
	Set convergence threshold.
void	numiter (int n)
	Set number of Newton-Raphson iterations.
void	linesPerBlock (size_t linesPerBlock)
	Set lines to be processed per block.
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.
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.
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.
size_t	linesPerBlock () const
	Get linesPerBlock.

Public Attributes
const double	NULL_VALUE = -1000000.0
	NoData Value.

Detailed Description

Transformer from map coordinates to radar geometry coordinates.

See geometry overview for description of the algorithm.

Constructor & Destructor Documentation

Geo2rdr() [1/3]

isce3::geometry::Geo2rdr::Geo2rdr ( const isce3::product::RadarGridProduct & 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

Geo2rdr() [2/3]

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

Geo2rdr() [3/3]

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

geo2rdr() [1/2]

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

geo2rdr() [2/2]

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

linesPerBlock()

void isce3::geometry::Geo2rdr::linesPerBlock ( size_t linesPerBlock )

inline

Set lines to be processed per block.

Parameters

[in]

linesPerBlock

Lines to be processed per block

numiter()

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

inline

Set number of Newton-Raphson iterations.

Parameters

[in]

n

Max number of Newton-Raphson iterations

threshold()

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:

• /home/runner/work/isce3/isce3/cxx/isce3/geometry/Geo2rdr.h
• /home/runner/work/isce3/isce3/cxx/isce3/geometry/Geo2rdr.cpp
• /home/runner/work/isce3/isce3/cxx/isce3/geometry/Geo2rdr.icc