pmChip Struct Reference
[AstroImage]

#include <pmAstrometry.h>

Collaboration diagram for pmChip:

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Detailed Description

Chip data structure.

A chip consists of one or more cells (according to the number of amplifiers on the device). The chip contains metadata containers for the concepts and analysis, a link to the parent, and pointers to the pointers to the various FITS data, if that corresponds to this level. For astrometry, in addition to the rough positioning information, it contains a coordinate transform from the chip to the focal plane. It is expected that this transform will consist of two second-order 2D polynomials; hence we think that it is prudent to include a reverse transformation which will be derived from numerically inverting the forward transformation. A boolean indicates whether the chip is of interest, allowing it to be excluded from analysis.

Definition at line 74 of file pmAstrometry.h.

Data Fields
int	col0
	Offset from the left of FPA.
int	row0
	Offset from the bottom of FPA.
psPlaneTransform *	toFPA
	Transformation from chip to FPA coordinates.
psPlaneTransform *	fromFPA
	Transformation from FPA to chip coordinates.
psMetadata *	concepts
	Cache for PS concepts.
psMetadata *	analysis
	Chip-level analysis metadata.
psArray *	cells
	The cells (referred to by name).
pmFPA *	parent
	Parent FPA.
bool	valid
	Do we bother about reading and working with this chip?
const char *	extname
	Extension name, if it corresponds to this level.
psArray *	pixels
	The pixel data, if it corresponds to this level.
psMetadata *	header
	The FITS header, if it corresponds to this level.

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Field Documentation

psMetadata* pmChip::analysis

Chip-level analysis metadata. Definition at line 84 of file pmAstrometry.h.

psArray* pmChip::cells

The cells (referred to by name). Definition at line 85 of file pmAstrometry.h.

int pmChip::col0

Offset from the left of FPA. Definition at line 77 of file pmAstrometry.h.

psMetadata* pmChip::concepts

Cache for PS concepts. Definition at line 83 of file pmAstrometry.h.

const char* pmChip::extname

Extension name, if it corresponds to this level. Definition at line 89 of file pmAstrometry.h.

psPlaneTransform* pmChip::fromFPA

Transformation from FPA to chip coordinates. Definition at line 81 of file pmAstrometry.h.

psMetadata* pmChip::header

The FITS header, if it corresponds to this level. Definition at line 91 of file pmAstrometry.h.

pmFPA* pmChip::parent

Parent FPA. Definition at line 86 of file pmAstrometry.h.

psArray* pmChip::pixels

The pixel data, if it corresponds to this level. Definition at line 90 of file pmAstrometry.h.

int pmChip::row0

Offset from the bottom of FPA. Definition at line 78 of file pmAstrometry.h.

psPlaneTransform* pmChip::toFPA

Transformation from chip to FPA coordinates. Definition at line 80 of file pmAstrometry.h.

bool pmChip::valid

Do we bother about reading and working with this chip? Definition at line 87 of file pmAstrometry.h.

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

• pmAstrometry.h

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