isce3::cuda::geometry::Geo2rdr Class Reference

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

#include <Geo2rdr.h>

Inheritance diagram for isce3::cuda::geometry::Geo2rdr:

Public Member Functions
	Geo2rdr (const isce3::product::RadarGridProduct &product, char frequency='A', bool nativeDoppler=false)
	Constructor from RadarGridProduct.
	Geo2rdr (const isce3::core::Ellipsoid &ellps, const isce3::core::Orbit &orbit, const isce3::core::LUT2d< double > &doppler, const isce3::core::Metadata &meta)
	Constructor from isce3::core objects.
	Geo2rdr (const isce3::product::RadarGridParameters &radarGrid, const isce3::core::Orbit &orbit, const isce3::core::Ellipsoid &ellipsoid, const isce3::core::LUT2d< double > &doppler={})
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.
Public Member Functions inherited from isce3::geometry::Geo2rdr
	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.

Additional Inherited Members
Public Attributes inherited from isce3::geometry::Geo2rdr
const double	NULL_VALUE = -1000000.0
	NoData Value.

Detailed Description

Transformer from map coordinates to radar geometry coordinates using GPU.

See geometry overview for description of the algorithm.

Member Function Documentation

geo2rdr() [1/2]

void isce3::cuda::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.

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

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

geo2rdr() [2/2]

void isce3::cuda::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

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

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