# Data structures for SPECFOCUS

define	SZ_SFFNAME	79		# Length of file names
define	LEN_SF		54		# Length of image data structure

define	SF_IMAGE	Memc[P2C($1)]	# Image name
define	SF_FOCUS	Memr[$1+40]	# Focus
define	SF_WIDTH	Memr[$1+41]	# Width
define	SF_LEVEL	Memr[$1+42]	# Level of width
define	SF_AXIS		Memi[$1+43]	# Dispersion axis
define	SF_X1		Memi[$1+44]	# Start of dispersion sampling
define	SF_DX		Memi[$1+45]	# Dispersion sampling step
define	SF_NX		Memi[$1+46]	# Number of dispersion samples
define	SF_Y1		Memi[$1+47]	# Start of cross-dispersion sampling
define	SF_DY		Memi[$1+48]	# Cross-dispersion sampling step
define	SF_NY		Memi[$1+49]	# Number of cross-dispersion samples
define	SF_SFD		Memi[$1+50]	# Pointer to data structures
define	SF_NSFD		Memi[$1+51]	# Number of data structures
define	SF_DATA		Memi[$1+52]	# Pointer to spectrum data 
define	SF_NPIX		Memi[$1+53]	# Number of pixels per spectrum

define	LEN_SFD		8		# Length of spectrum data structure

define	SF_X		Memr[$1]	# Dispersion axis coordinate
define	SF_Y		Memr[$1+1]	# Spatial axis coordinate
define	SF_SPEC		Memi[$1+2]	# Pointer to spectrum
define	SF_ASI		Memi[$1+3]	# Pointer to correlation profile
define	SF_FOC		Memr[$1+4]	# Focus
define	SF_WID		Memr[$1+5]	# Width
define	SF_POS		Memr[$1+6]	# Position
define	SF_DEL		Memi[$1+7]	# Deleted?

define	SFD		Memi[SF_SFD($1)+($3-1)*SF_NX($1)+$2-1]