psFixedPattern Struct Reference
[Astrometry Functions]

#include <psAstrometry.h>

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Detailed Description

Fixed Pattern Corrections.

The fixed pattern is a correction to the general astrometric solution formed by summing the residuals from many observations. The intent is to correct for higher-order distortions in the camera system on a coarse grid (larger than individual pixels, but smaller than a single cell). Hence, in addition to the offsets, we need to specify the size and scale of the grid in x and y as well as the origin of the grid.

Definition at line 69 of file psAstrometry.h.

Data Fields
psS32	nX
	Number of elements in x direction.
psS32	nY
	Number of elements in y direction.
double	x0
	X Position of 0,0 corner on focal plane.
double	y0
	Y Position of 0,0 corner on focal plane.
double	xScale
	Scale of the grid in x direction.
double	yScale
	Scale of the grid in x direction.
psS32	p_ps_xRows
	Number of rows in the x member.
psS32	p_ps_xCols
	Number of cols in the x member.
psS32	p_ps_yRows
	Number of rows in the y member.
psS32	p_ps_yCols
	Number of cols in the y member.
double **	x
	The grid of offsets in x.
double **	y
	The grid of offsets in y.

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Field Documentation

psS32 psFixedPattern::nX

Number of elements in x direction. Definition at line 71 of file psAstrometry.h.

psS32 psFixedPattern::nY

Number of elements in y direction. Definition at line 72 of file psAstrometry.h.

psS32 psFixedPattern::p_ps_xCols

Number of cols in the x member. Definition at line 79 of file psAstrometry.h.

psS32 psFixedPattern::p_ps_xRows

Number of rows in the x member. Definition at line 78 of file psAstrometry.h.

psS32 psFixedPattern::p_ps_yCols

Number of cols in the y member. Definition at line 81 of file psAstrometry.h.

psS32 psFixedPattern::p_ps_yRows

Number of rows in the y member. Definition at line 80 of file psAstrometry.h.

double** psFixedPattern::x

The grid of offsets in x. Definition at line 82 of file psAstrometry.h.

double psFixedPattern::x0

X Position of 0,0 corner on focal plane. Definition at line 73 of file psAstrometry.h.

double psFixedPattern::xScale

Scale of the grid in x direction. Definition at line 75 of file psAstrometry.h.

double** psFixedPattern::y

The grid of offsets in y. Definition at line 83 of file psAstrometry.h.

double psFixedPattern::y0

Y Position of 0,0 corner on focal plane. Definition at line 74 of file psAstrometry.h.

double psFixedPattern::yScale

Scale of the grid in x direction. Definition at line 76 of file psAstrometry.h.

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The documentation for this struct was generated from the following file:

• psAstrometry.h

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