pmPSF.h File Reference

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Detailed Description

This file contains typedefs for the Point-Spread Function and prototypes for functions that calculate the PSF.

Author:

EAM, IfA

Copyright 2004 Maui High Performance Computing Center, University of Hawaii

Definition in file pmPSF.h.

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Data Structures
struct	pmPSF
	pmPSF data structure More...
Enumerations
enum	pmPSF_ApTrendOptions { PM_PSF_NONE, PM_PSF_CONSTANT, PM_PSF_SKYBIAS, PM_PSF_SKYSAT, PM_PSF_XY_LIN, PM_PSF_XY_QUAD, PM_PSF_SKY_XY_LIN, PM_PSF_SKYSAT_XY_LIN, PM_PSF_ALL }
Functions
pmPSF *	pmPSFAlloc (pmModelType type, bool poissonErrors)
	Allocator for the pmPSF structure.
bool	pmPSFFromModels (pmPSF *psf, psArray *models, psVector *mask)
	This function takes a collection of pmModel fitted models from across a single image and builds a pmPSF representation of the PSF.
pmModel *	pmModelFromPSF (pmModel *model, pmPSF *psf)
	This function constructs a pmModel instance based on the pmPSF description of the PSF.
bool	pmPSF_MaskApTrend (psPolynomial4D *trend, pmPSF_ApTrendOptions option)

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Enumeration Type Documentation

enum pmPSF_ApTrendOptions

Enumerator: PM_PSF_NONE  PM_PSF_CONSTANT  PM_PSF_SKYBIAS  PM_PSF_SKYSAT  PM_PSF_XY_LIN  PM_PSF_XY_QUAD  PM_PSF_SKY_XY_LIN  PM_PSF_SKYSAT_XY_LIN  PM_PSF_ALL  Definition at line 47 of file pmPSF.h.

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Function Documentation

pmModel* pmModelFromPSF (  pmModel *  model, pmPSF *  psf )

This function constructs a pmModel instance based on the pmPSF description of the PSF. The input is a pmModel with at least the values of the centroid coordinates (possibly normalization if this is needed) defined. The values of the PSF-dependent parameters are specified for the specific realization based on the coordinates of the object. Parameters: model  Add comment psf  Add comment

bool pmPSF_MaskApTrend (  psPolynomial4D *  trend, pmPSF_ApTrendOptions  option )

pmPSF* pmPSFAlloc (  pmModelType  type, bool  poissonErrors )

Allocator for the pmPSF structure. Parameters: poissonErrors  use poissonian errors or not?

bool pmPSFFromModels (  pmPSF *  psf, psArray *  models, psVector *  mask )

This function takes a collection of pmModel fitted models from across a single image and builds a pmPSF representation of the PSF. The input array of model fits may consist of entries to be ignored (noted by a non-zero mask entry). The analysis of the models fits a 2D polynomial for each parameter to the collection of model parameters as a function of position (and normalization?). In this process, some of the input models may be marked as outliers and excluded from the fit. These elements will be marked with a specific mask value (1 == PSFTRY_MASK_OUTLIER). Parameters: psf  Add comment models  Add comment mask  Add comment

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