AIPS HELP file for IM2TX in 31DEC26

As of Tue Feb 10 2:20:59 2026

INPUTS

INNAME                             Input image name (name)
INCLASS                            Input image name (class)
INSEQ             0.0     9999.0   Input image name (seq. #)
INDISK            0.0        9.0   Input image disk unit #
BLC                                Bottom left corner of input
TRC                                Top right corner of input
OPCODE                             Operation code.
OUTFILE
                                   Output file name

HELP SECTION

IM2TX
Task: Sums an image over a region in N-1 dimensions and writes the
      result to a text file as a one-dimensional array in the
      remaining dimension.  This is often used to extract spectra
      at a pixel or over a region in celestial coordinates.  A
      complementary task TX2IM converts the text file back into a
      one-dimensional image.
Adverbs:
  INNAME.....Input image name (name).       Standard defaults.
  INCLASS....Input image name (class).      Standard defaults.
  INSEQ......Input image name (seq. #).     0 => highest.
  INDISK.....Disk drive # of input image.   0 => any.
  BLC........Bottom right corner in input image of desired subimage.
             Default is entire image.
  TRC........Top right corner in input image of desired subimage.
             Default is entire image.
  OPCODE.....'1SUM' spectrum in axis 1, sum over BLC-TRC in axes 2-N
             '2SUM' spectrum in axis 2, sum over BLC-TRC in axes 1,3-N
             '3SUM' spectrum in axis 3, sum over BLC-TRC in axes 1,2,
                    4-N
             '1AVG', '2AVG', '3AVG' similar but average the sums and
                    output the rms (in a 3rd data column)
             '1RMS', '2RMS', '3RMS' similar but output the rms only
  OUTFILE....Output text file.  The usual form is given by a logical,
             then a colon, and then the file name.  'MYDISK:myfile
             without a trailing quote to allow lowercase letters.

EXPLAIN SECTION