AIPS HELP file for TVPL in 31DEC26

As of Sun Sep 13 3:07:26 2026

INPUTS

INNAME                             Image name (name)
INCLASS                            Image name (class)
INSEQ           0.0      9999.0    Image name (seq. #)
INDISK          0.0         9.0    Disk drive #
PLVER           0.0     46655.0    Version # of PL file. 0=>last
GRCHAN          0.0         8.0    Graphics channel 0=>several
TVCHAN          0.0        16.0    TV channel selection
TVCORN          0.0      2048.0    TV pixel location of bottom
                                   left corner of image 0=> self
                                   scale, non 0 => pixel scale.
DODARK         -1.0         1.0    <= 0 => plot "dark" vectors
                                   in full graphics chan color
INIT           -1.0         1.0    > 0 => initialize the TV
                                       entirely.
                                   <= 0 => initialize only the
                                       channels used by the plot

HELP SECTION

TVPL
Type: Task
Use:  TVPL will find an extension file of type PL and use the graphics
      commands in that file to display the plot on the TV device.  Plots
      of images larger than the TV will be plotted with many image rows
      and columns omitted.  The larget image size it can manage on the
      horizontal is 10240.
Adverbs:
  INNAME......Image name(name).         Standard defaults.
  INCLASS.....Image name(class).        Standard defaults.
  INSEQ.......Image name(seq. #).       0 => highest.
  INDISK......Disk drive # of image.    0 => any.
  PLVER.......Version # of the PL file. 0 => highest version #
  GRCHAN......Graphics channel (1 - 7) to use for line drawing.
              0 => Use different graphics channels for the various
              parts of the plot - namely 1 for labeling, 2 for
              contours, 3 for polarization lines, and 4 for stars.
  TVCHAN......TV channel to display gray-scale portion of plot.
              0 => 1.
              NOTE: If the plot file contains 3-color plot commands,
              then TVCHAN should be low enough that channels TVCHAN+1
              and TVCHAN+2 exist (the usual XAS has only 16 multi-bit
              channels)
  TVCORN......TV pixel location (X,Y) where the bottom left-corner of
              the plot is to be placed. If either is zero, use the
              largest possible self scaling, else use pixel scaling
              with specified origin on the TV.
  DODARK......> 0 => use graphics channel 8 to plot black overlay
              lines whenever the plot files calls for dark vectors.
              <= 0 => plot "dark" vectors as bright lines in the
              colored graphics channels as if they were bright lines.
  INIT........> 0  => the TV (XAS) is fully initialized at the start.
              <= 0 => initialize only the grey-scale and graphics
                  channels used by the plot.  This lets you overlay
                  different plot files for comparison purposes when
                  they are on the same scales.

EXPLAIN SECTION