ObitImageDesc Struct Reference

ObitImageDesc Class structure. More...

#include <ObitImageDesc.h>

List of all members.

Public Attributes
gint32	ObitId
	Recognition bit pattern to identify the start of an Obit object.
gpointer	ClassInfo
	ClassInfo pointer for class with name, base and function pointers.
gint	ReferenceCount
	Reference count for object (numbers of pointers attaching).
gchar *	name
	Name of object [Optional].
gint	bitpix
	Number of bits per pixel on disk.
gint	naxis
	Number of axes.
glong	inaxes [IM_MAXDIM]
	Dimensions of axes.
gchar	ctype [IM_MAXDIM][IMLEN_KEYWORD]
	WCS labels for each dimension of array.
gfloat	cdelt [IM_MAXDIM]
	Axis coordinate increments.
gfloat	crpix [IM_MAXDIM]
	Axis reference pixels (1-rel).
gfloat	crota [IM_MAXDIM]
	Axis rotation angles (deg).
gfloat	altCrpix
	Alternate reference Pixel (frequency or velocity).
gfloat	xshift
	Offset in X (rotated RA) of phase center (deg).
gfloat	yshift
	Offset in Y (rotated Dec) of phase center (deg).
gfloat	beamMaj
	Convolving beam major axis in degrees.
gfloat	beamMin
	Convolving beam minor axis in degrees.
gfloat	beamPA
	Convolving beam position angle in degrees.
gchar	object [IMLEN_VALUE]
	Name of object.
gchar	teles [IMLEN_VALUE]
	Name of telescope making observation.
gchar	instrument [IMLEN_VALUE]
	Name of instrument making observation.
gchar	observer [IMLEN_VALUE]
	Observer.
gchar	obsdat [IMLEN_VALUE]
	Observing date as yyyy-mm-dd.
gchar	date [IMLEN_VALUE]
	Image creation date as yyyy-mm-dd.
gchar	origin [IMLEN_VALUE]
	Origin (software) of image.
gchar	bunit [IMLEN_VALUE]
	Units of image.
gfloat	epoch
	Epoch (years) of celestial coordinates, This is sometimes confused with equinox.
gfloat	equinox
	Mean Equinox of celestial coordinates (e.g.
gdouble	obsra
	Observed RA (deg).
gdouble	obsdec
	Observed Dec (deg).
gdouble	crval [IM_MAXDIM]
	Axis coordinate values at reference pixel.
gdouble	altRef
	Alternate reference value (frequency or velocity).
gdouble	restFreq
	Rest frequency of line (Hz).
gfloat	maxval
	maximum value in image
gfloat	minval
	minimum value in image
gboolean	areBlanks
	Are there blanked pixels in the image?
glong	niter
	number of iterations of deconvolution
gint	VelReference
	Velocity reference frame: 1-3 (LSR, Helio, Observer).
gint	VelDef
	Velocity definition 0=>optical, 1=radio.
ObitCoordType	coordType
	Coordinate type.
glong	row
	current row (1-rel) read/write in buffer
glong	plane
	current plane (1-rel) read/write in buffer
ObitIOSize	IOsize
	Access size code.
gint	jlocr
	0-rel axis order: RA (or longitude) , -1 means not present.
gint	jlocd
	0-rel axis order: declination (or latitude), -1 means not present.
gint	jlocs
	0-rel axis order: Stokes' parameters, -1 means not present.
gint	jlocf
	0-rel axis order: Frequency.
ObitInfoList *	info
	InfoList for other keywords.

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Detailed Description

ObitImageDesc Class structure.

This class contains descriptions of astronomical images.

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Member Data Documentation

gfloat ObitImageDesc::altCrpix

Alternate reference Pixel (frequency or velocity).

gdouble ObitImageDesc::altRef

Alternate reference value (frequency or velocity).

gboolean ObitImageDesc::areBlanks

Are there blanked pixels in the image?

gfloat ObitImageDesc::beamMaj

Convolving beam major axis in degrees.

gfloat ObitImageDesc::beamMin

Convolving beam minor axis in degrees.

gfloat ObitImageDesc::beamPA

Convolving beam position angle in degrees.

gint ObitImageDesc::bitpix

Number of bits per pixel on disk. negative implies IEEE floating.

gchar ObitImageDesc::bunit[IMLEN_VALUE]

Units of image.

gfloat ObitImageDesc::cdelt[IM_MAXDIM]

Axis coordinate increments.

gpointer ObitImageDesc::ClassInfo

ClassInfo pointer for class with name, base and function pointers.

ObitCoordType ObitImageDesc::coordType

Coordinate type.

gfloat ObitImageDesc::crota[IM_MAXDIM]

Axis rotation angles (deg).

gfloat ObitImageDesc::crpix[IM_MAXDIM]

Axis reference pixels (1-rel).

gdouble ObitImageDesc::crval[IM_MAXDIM]

Axis coordinate values at reference pixel.

gchar ObitImageDesc::ctype[IM_MAXDIM][IMLEN_KEYWORD]

WCS labels for each dimension of array.

gchar ObitImageDesc::date[IMLEN_VALUE]

Image creation date as yyyy-mm-dd.

gfloat ObitImageDesc::epoch

Epoch (years) of celestial coordinates, This is sometimes confused with equinox.

gfloat ObitImageDesc::equinox

Mean Equinox of celestial coordinates (e.g. 2000)

glong ObitImageDesc::inaxes[IM_MAXDIM]

Dimensions of axes.

ObitInfoList* ObitImageDesc::info

InfoList for other keywords.

gchar ObitImageDesc::instrument[IMLEN_VALUE]

Name of instrument making observation.

ObitIOSize ObitImageDesc::IOsize

Access size code.

gint ObitImageDesc::jlocd

0-rel axis order: declination (or latitude), -1 means not present.

gint ObitImageDesc::jlocf

0-rel axis order: Frequency. -1 means not present.

gint ObitImageDesc::jlocr

0-rel axis order: RA (or longitude) , -1 means not present.

gint ObitImageDesc::jlocs

0-rel axis order: Stokes' parameters, -1 means not present.

gfloat ObitImageDesc::maxval

maximum value in image

gfloat ObitImageDesc::minval

minimum value in image

gchar* ObitImageDesc::name

Name of object [Optional].

gint ObitImageDesc::naxis

Number of axes.

glong ObitImageDesc::niter

number of iterations of deconvolution

gint32 ObitImageDesc::ObitId

Recognition bit pattern to identify the start of an Obit object.

gchar ObitImageDesc::object[IMLEN_VALUE]

Name of object.

gchar ObitImageDesc::obsdat[IMLEN_VALUE]

Observing date as yyyy-mm-dd.

gdouble ObitImageDesc::obsdec

Observed Dec (deg).

gchar ObitImageDesc::observer[IMLEN_VALUE]

Observer.

gdouble ObitImageDesc::obsra

Observed RA (deg).

gchar ObitImageDesc::origin[IMLEN_VALUE]

Origin (software) of image.

glong ObitImageDesc::plane

current plane (1-rel) read/write in buffer

gint ObitImageDesc::ReferenceCount

Reference count for object (numbers of pointers attaching).

gdouble ObitImageDesc::restFreq

Rest frequency of line (Hz).

glong ObitImageDesc::row

current row (1-rel) read/write in buffer

gchar ObitImageDesc::teles[IMLEN_VALUE]

Name of telescope making observation.

gint ObitImageDesc::VelDef

Velocity definition 0=>optical, 1=radio.

gint ObitImageDesc::VelReference

Velocity reference frame: 1-3 (LSR, Helio, Observer).

gfloat ObitImageDesc::xshift

Offset in X (rotated RA) of phase center (deg).

gfloat ObitImageDesc::yshift

Offset in Y (rotated Dec) of phase center (deg).

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

• ObitImageDesc.h

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