AIPS HELP file for GCPLT in 31DEC24
As of Thu Apr 25 22:00:01 2024
GCPLT: Task to plot selected contents of gain curve files
INPUTS
INNAME UV data (name).
INCLASS UV data (class).
INSEQ 0.0 9999.0 UV data (seq. #). 0 => high
INDISK 0.0 9.0 Disk unit #. 0 => any
BAND Q,A,K,U,X,...
CALIN
Antenna gains file
ANTENNAS Antennas to plot 0=>all
PIXRANGE Range to plot: 0 => self
scale each antenna separately
NPLOTS 0.0 28.0 Number of plots per page
DO3COLOR -1.0 1.0 > 0 use 3-color symbols to
separate frequencies within
selected band
LTYPE -410.0 410.0 Type of labeling: 1 border,
2 no ticks, 3 - 6 standard,
7 - 10 only tick labels
<0 -> no date/time
DOTV -1.0 1.0 > 0 Do plot on the TV, else
make a plot file
GRCHAN 0.0 8.0 Graphics channel
HELP SECTION
GCPLT
Type: Task
Use: Plots selected values from gain curve text file
Adverbs:
INNAME.....UV file name (name). Standard defaults.
INCLASS....UV file name (class). Standard defaults.
INSEQ......UV file name (seq. #). 0 => highest.
INDISK.....Disk unit #. 0 => any.
BAND.......Desired band:'4','P','L','S','C','X','U','K','A', or 'Q'.
CALIN......The name of a file to provide the antenna gains used to
populate the initial CL table. If CALIN is left blank,
it defaults to a system file located at:
'AIPSIONS:VLA.GAINS' (old VLA) or
'AIPSIONS:EVLA.GAINS' (EVLA)
The file is in free format with fields: a 1-character
band code, antenna number, begin date in form YYYYMMDD,
end date YYYYMMDD, and 4 gain curve coefficients. The
EVLA file adds a column between band and antenna for the
frequency in MHz.
ANTENNAS...A list of the antennas to be plotted. All 0 => all. If any
number is negative then all antennas listed are NOT to be
plotted and all others are.
PIXRANGE...If PIXR(1) < PIXR(2), all plots will be from PIXR(1) to
PIXR(2). Otherwise each plot will be self-scaling.
NPLOTS.....Number of antennas to plot per page (try 5).
DO3COLOR...> 0 => use 3-color plotting to separate frequencies:
If there are more than 3 frequencies, then the colors
used start with red and go through green to blue for
the last frequency read in the text file.
If there are 3 or fewer, then line types 2 through 4
are used. If plotted on the TV, these are grean,
pink, and cyan, resp.
LTYPE......Labelling type, see HELP LTYPE for details:
1 = border, 2 = no ticks, 3 or 7 = standard, 4 or 8 =
relative to ref. pixel, 5 or 9 = relative to subimage
(BLC, TRC) center, 6 or 10 = pixels. 7-10 all labels
other than tick numbers and axis type are omitted.
Less than 0 is the same except that the plot file
version number and create time are omitted.
Add n * 100 to alter the metric scaling.
DOTV.......> 0 => plot directly on the TV device, otherwise make a
plot file for later display on one or more devices
(including the TV if desired).
GRCHAN.....Graphics channel (1 - 7) to use for line drawing.
A value of 0 causes more than one graphics channel to be
used.
EXPLAIN SECTION