DulFitsRead - Implements a Tcl Command to read a Fits file into an Sds
Implements a Tcl Command to read a Fits file into an Sds structure.
This C function implements a Tcl command which will read a
FITS file into an SDS structure. This function is only
CFITSIO support is enabled when the DRAMA DUL
Library is built.
The Tcl command description follows
This command will read an image from a FITS file into an SDS
This structure will be of the form described in the DITS
specification for ImageStructure type SDS structures.
If the "-type" option is not used, the file will be converted into
an SDS structure of type USHORT (for historical compatiblity).
This command will only be available on Dtcl if DRAMA has been
built with support for CFITSIO enabled. Dtcl/Dtk will include
this command (from DRAMA version 1.5.2) if CFITSIO support is
enabled when Dtcl is built.
The FITS header is also put into the SDS structure in an
HEADER. This is a raw array of SDS_CHAR containing the raw
cards for the primiary header.
Tcl Command Call
<user defined> fitsFile [options]
Tcl Command Parameters
(>) fitsFile (string) The name of the FITS file to read.
- -type type
- Specifies the SDS type into which the data should e
converted. Possiblities are byte,
short, ushort, int, uint, float, double, int64, natural. "natural"
means that it is converted into the natural format for the file.
If this argument is not supplied, then it is converted into ushort.
Tcl Command Returns
The SDS ID of the structure or ERROR.
DulFitsRead( clientData, interp, argc, argv)
As per C implementation of Tcl commands.
Tcl OK or Error.
Dul library document, tclsh(n), DulFitsWrite(3),
FITSIO library specification, FITS specification,
Tony Farrell, AAO
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