; LTYPE
;---------------------------------------------------------------
;! specifies the type and degree of axis labels on plots
;# ADVERB PLOT
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;-----------------------------------------------------------------------
;---------------------------------------------------------------
LTYPE     LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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LTYPE
Type: Adverb  (Real)
Use:  Set up the type of label to be used on a plot.
         LTYPE has 3 parts: sign * [ 100 * n + m ]

      Values of m mean:
       1 = No label, just a border line
       2 = No tick labels, just tick marks and rest of label

       3 = Label with RA and DEC or other natural units
       4 = Label in arcsec or other units from reference pixel
       5 = Label in arcsec or other units from subimage center
       6 = Label in pixels from original bottom left corner

      Do just tick numbers and X and Y axis labels, leaving of
      the time, source name, center coordinates, peak flux, and
      other labels:
       7 = Label with RA and DEC or other natural units
       8 = Label in arcsec or other units from reference pixel
       9 = Label in arcsec or other units from subimage center
      10 = Label in pixels from original bottom left corner

      Values of n mean:
       0 = Metric scaling on non-coordinate axes (micro, milli, kilo,
           mega, et al.) meant to make range visible
       1 = Same except that milli and kilo are not used
       2 = Same as 1 except micro and mega are also not used
       3 = Move each metric scale one closer to none
       4 = Move each metric scale one or two closer to none

      Negative LTYPE means the same as the corresponding
      positive value, but asks the plot routine to suppress the
      date/time/plot-version-number label.

Null Value:  0 => 3 in most places
      Not all tasks and verbs support all possible LTYPEs.
Verbs:
   TKGUESS.......Verb to display slice model guess directly on TEK.
   TKMODEL.......Verb to display slice model directly on TEK.
   TKRESID.......Verb to display slice model residuals directly on TEK.
   TKSLICE.......Verb to display slice file directly on TEK.
   TVCOMPS.......Verb to display slice model components directly on TV
                 graphics.
   TVCUBE........Verb to load a cube into tv channel(s) & run a movie.
   TVGUESS.......Verb to display slice model guess directly on TV
                 graphics.
   TVLABEL.......Verb to label the (map) image on the TV.
   TVMODEL.......Verb to display slice model directly on TV graphics.
   TVMOVIE.......Verb to load a cube into tv channel(s) & run a movie.
   TVRESID.......Verb to display slice model residuals directly on TV
                 graphics.
   TVSLICE.......Verb to display slice file directly on TV.
   TVWLABEL......Put a label on the wedge that you just put on the TV.
Tasks:
   AGAUS.........Fits 1-dimensional Gaussians to absorption-line spectra.
   ALVAR.........Plots the Allan Variance statistic of a UV data set.
   ANBPL.........Plots and prints uv data converted to antenna based
                 values.
   APCAL.........Apply TY and GC tables to generate an SN table.
   BLPLT.........Plots BLCAL tables in 2 dimensions as function of
                 baseline and IF.
   BLSUM.........Sums images over irregular sub-images, displays spectra.
   BPEPL.........Plots bandpass tables overlaying multiple times like
                 BPEDT.
   BPERR.........Print and plot BPASS closure outputs.
   BPLOT.........Plots bandpass tables in 2 dimensions as function of
                 time.
   CAPLT.........Plots closure amplitude and model from CC file.
   CCNTR.........Generate a contour plot file from an image with CC or MF
                 plotted.
   CLPLT.........Plots closure phase and model from CC file.
   CNTR..........Generate a contour plot file or TV plot from an image.
   DFTPL.........Plots DFT of a UV data set at arbitrary point versus
                 time.
   ELFIT.........Plots/fits selected contents of SN, TY, SY, PC or CL
                 files.
   EVAUV.........Subtracts & divides a model into UV data, does statistics
                 on results.
   FGPLT.........Plots selected contents of FG table.
   FRMAP.........Task to build a map using fringe rate spectra.
   FRPLT.........Task to plot fringe rate spectra.
   GCPLT.........Plots gain curves from text files.
   GREYS.........Plots images as contours over multi-level grey.
   IMAGR.........Wide-field and/or wide-frequency Cleaning / imaging task.
   IMEAN.........Displays the mean & extrema and plots histogram of an
                 image.
   IMRMS.........Plot IMEAN rms answers.
   IMVIM.........Plots one image's values against another's.
   ISPEC.........Plots and prints spectrum of region of a cube.
   KNTR..........Make a contour/grey plot file from an image w multiple
                 panels.
   OBPLT.........Plot columns of an OB table.
   PCHIS.........Generates a histogram plot file from text input, e.g.
                 from PCRMS.
   PCNTR.........Generate plot file with contours plus polarization
                 vectors.
   PCPLT.........Plots pulse-cal tables in 2 dimensions as function of
                 time.
   PDPLT.........Plots selected contents of PD tables.
   PFPL1.........Paraform Task to generate a plot file: (does grey scale).
   PFPL2.........Paraform Task to generate a plot file: (slice intensity).
   PFPL3.........Paraform Task to generate a plot file: (does histogram).
   PLAYR.........Task to load one or two images and play with them on the
                 TV.
   PLCUB.........Task to plot intensity vs x panels on grid of y,z pixels.
   PLOTR.........Basic task to generate a plot file from text input.
   PLROW.........Plot intensity of a series of rows with an offset.
   POSSM.........Task to plot total and cross-power spectra.
   PROFL.........Generates plot file for a profile display.
   RFLAG.........Flags data set based on time and freq rms in fringe
                 visibilities.
   RM2PL.........Plots spectrum of a pixel with RMFIT fit.
   RSPEC.........Plots and prints spectrum of rms of a cube.
   SCIMG.........Full-featured imaging plus self-calibration loop with
                 editing.
   SCMAP.........Imaging plus self-calibration loop with editing.
   SERCH.........Finds line signals in transposed data cube.
   SL2PL.........Task to convert a Slice File to a Plot File.
   SLFIT.........Task to fit gaussians to slice data.
   SNBLP.........Plots selected contents of SN or CL files on a baseline
                 basis.
   SNFIT.........Fits parabola to SN amplitudes and plots result.
   SNIFS.........Plots selected contents of SN, TY, SY, PC or CL files by
                 IF.
   SNPLT.........Plots selected contents of SN, SY, TY, PC or CL files
                 versus time.
   SPRMS.........Plots spectral statistics of a selected subset of a uv
                 data set.
   SYVSN.........Plots selected SY/TY data with SN solution values versus
                 time.
   TAPLT.........Plots data from a Table extension file.
   TARPL.........Plot input and output text files of the TARS task.
   UVHGM.........Plots statistics of uv data files as histogram.
   UVHOL.........Prints holography data from a UV data base with
                 calibration.
   UVPLT.........Plots data from a UV data base in multiple ways.
   UVRMS.........Computes statistics of a selected subset of a uv data
                 set.
   VPLOT.........Plots uv data and model from CC file.
   WETHR.........Plots selected contents of WX tables, flags data based on
                 WX.
   XBASL.........Fits and subtracts nth-order baselines from cube (x
                 axis).
   XG2PL.........Plots spectrum of a pixel with XGAUS/AGAUS and
                 ZEMAN/ZAMAN fits.
   XGAUS.........Fits 1-dimensional Gaussians to images: restartable.
   XPLOT.........Plots image rows one at a time on the graphics or TV
                 screen.
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