isce3::core::Poly2d Class Reference

Data structure for representing 1D polynomials. More...

#include <Poly2d.h>

Public Member Functions
	Poly2d (int ro, int ao, double rm, double am, double rn, double an)
	Simple constructor. More...
	Poly2d ()
	Empty constructor.
	Poly2d (const Poly2d &p)
	Copy constructor. More...
Poly2d &	operator= (const Poly2d &)
	Assignment operator.
void	setCoeff (int row, int col, double val)
	Set coefficient by indices. More...
double	getCoeff (int row, int col) const
	Get coefficient by indices. More...
double	eval (double azi, double rng) const
	Evaluate polynomial at given y,x. More...
void	printPoly () const
	Printing for debugging.

Public Attributes
int	rangeOrder
	Order of polynomial in range or x.
int	azimuthOrder
	Order of polynomial in azimuth or y.
double	rangeMean
	Mean in range or x direction.
double	azimuthMean
	Mean in azimuth or y direction.
double	rangeNorm
	Norm in range or x direction.
double	azimuthNorm
	Norm in azimuth or y direction.
std::vector< double >	coeffs
	Linearized vector of coefficients in row-major format.

Detailed Description

Data structure for representing 1D polynomials.

Poly2D is function of the form

\[ f\left( y, x \right) = \sum_{i=0}^{N_y} \sum_{j=0}^{N_x} a_{ij} \cdot \left( \frac{y-\mu_y}{\sigma_y} \right)^i \cdot \left( \frac{x-\mu_x}{\sigma_x} \right)^j \]

where \(a_ij\) represents the coefficients, \(\mu_x\) and \(\mu_y\) represent the means and \(\sigma_x\) and \(\sigma_y\) represent the norms

Constructor & Destructor Documentation

isce3::core::Poly2d::Poly2d ( int  ro, int  ao, double  rm, double  am, double  rn, double  an  )

inline

Simple constructor.

Parameters

[in]	ro	Range Order
[in]	ao	Azimuth Order
[in]	rm	Range Mean
[in]	am	Azimuth Mean
[in]	rn	Range Norm
[in]	an	Azimuth Norm

isce3::core::Poly2d::Poly2d ( const Poly2d &  p )

inline

Copy constructor.

Parameters

[in]

p

Poly2D object

Member Function Documentation

double isce3::core::Poly2d::eval	(	double	azi,
		double	rng
	)		const

Evaluate polynomial at given y,x.

Parameters

[in]	azi	azimuth or y value
[in]	rng	range or x value

double isce3::core::Poly2d::getCoeff ( int  row, int  col  ) const

inline

Get coefficient by indices.

Parameters

[in]	row	azimuth/y index
[in]	col	range/x index

void isce3::core::Poly2d::setCoeff ( int  row, int  col, double  val  )

inline

Set coefficient by indices.

Parameters

[in]	row	azimuth/y index
[in]	col	range/x index
[in]	val	Coefficient value

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

• isce/cxx/isce3/core/Poly2d.h
• isce/cxx/isce3/core/Poly2d.cpp