pmFPA Struct Reference
[AstroImage]

#include <pmAstrometry.h>

---

Detailed Description

Focal plane data structure.

A focal plane consists of one or more chips (according to the number of pieces of contiguous silicon). It contains metadata containers for the concepts and analysis, a link to the parent, and pointers to the FITS header, if that corresponds to this level (the FPA may be the PHU, but will not ever contain pixels). For astrometry, it contains a transformation from the focal plane to the tangent plane and the fixed pattern residuals. It is expected that the transformation will consist of two 4D polynomials (i.e. a function of two coordinates in position, the magnitude of the object, and the color of the object) in order to correct for optical distortions and the effects of the atmosphere; hence we think that it is prudent to include a reverse transformation which will be derived from numerically inverting the forward transformation.

Definition at line 43 of file pmAstrometry.h.

Data Fields
psPlaneDistort *	fromTangentPlane
	Transformation from tangent plane to focal plane.
psPlaneDistort *	toTangentPlane
	Transformation from focal plane to tangent plane.
psProjection *	projection
	Projection from tangent plane to sky.
psMetadata *	concepts
	Cache for PS concepts.
psMetadata *	analysis
	FPA-level analysis metadata.
const psMetadata *	camera
	Camera configuration.
psArray *	chips
	The chips.
psMetadata *	header
	The FITS header, if it corresponds to this level.
psDB *	db
	Database handle.

---

Field Documentation

psMetadata* pmFPA::analysis

FPA-level analysis metadata. Definition at line 51 of file pmAstrometry.h.

const psMetadata* pmFPA::camera

Camera configuration. Definition at line 52 of file pmAstrometry.h.

psArray* pmFPA::chips

The chips. Definition at line 53 of file pmAstrometry.h.

psMetadata* pmFPA::concepts

Cache for PS concepts. Definition at line 50 of file pmAstrometry.h.

psDB* pmFPA::db

Database handle. Definition at line 56 of file pmAstrometry.h.

psPlaneDistort* pmFPA::fromTangentPlane

Transformation from tangent plane to focal plane. Definition at line 46 of file pmAstrometry.h.

psMetadata* pmFPA::header

The FITS header, if it corresponds to this level. Definition at line 55 of file pmAstrometry.h.

psProjection* pmFPA::projection

Projection from tangent plane to sky. Definition at line 48 of file pmAstrometry.h.

psPlaneDistort* pmFPA::toTangentPlane

Transformation from focal plane to tangent plane. Definition at line 47 of file pmAstrometry.h.

---

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

• pmAstrometry.h

---