PLOT-LINE-PARAMETERS

Produce a montage of contour maps of some or all of:

1. Maximum temperature in the specified velocity range.
2. Velocity/frequency etc of the spectrum maximum.
3. Integrated intensity within the velocity range.
4. Equivalent width of the line, specified as integrated intensity divided by the maximum.
5. First moment (centroid) of the line profile.
6. Second moment (variance) of the line profile.

The order of the options specifies the order in which the maps are plotted, left to right and from top to bottom. The contours are set automatically, using the number of contours as set by SET-CONTOUR-LEVELS, unless only one map is being plotted, in which case the rules applying to CONTOUR-MAP apply and the contouring may be specified (if so desired) in SET-CONTOUR.

The graphics area is specified by SET-MAP-SIZE; the map area by SET-MAP-SCALES. 2-D interactive plotting is enabled if INTERACTIVE is set true, using either SET-INTERACTIVE or a simple logical assignment.

There is no explicit command to make PLOT-LINE-PARAMETERS plot greyscales in addition to, or instead of, contours. This behaviour is controlled by the two logical variables PLOT_GREY and PLOT_CONT, which can be set and unset in the usual way (e.g.>> plot_grey=true). These variables are also set when doing a CONTOUR-MAP or GREYSCALE-MAP, so that contours will be the default after a CONTOUR and greyscales the default after GREYSCALE. A greyscale bar is plotted only if only one map is made.

Relevant flags:

INTERACTIVE

L4

Enter interactive graphics mode after plotting.

LINTYP_POS

I4

Mongo line type for positive contours [0].

LINTYP_NEG

I4

Mongo line type for negative contours [1].

LINTYP_ZERO

I4

Mongo line type for zero contours [2].

LINE_WEIGHT

I4

Default line weight for plotting axes, labels etc.

NCONT

I4

Number of contours to be plotted.

AUTOGREY

L4

Set greyscale limits automatically from map max and min.

GREYLIM(2)

R4

Levels represented by black (min) and white (max)

COLOUR_TABLE

I4

Number of colour table to use:

1	linear black to white
2	colour contours
3	power-law black to white
4	blue to yellow colours
5	MRAO blue to white spiral

OVERLAY_CONTOURS

L4

Automatically overlay contours on greyscale

PLOT_GREY

L4

Plot greyscale for PLOT-LINE-PAR and CHANNEL-MAPS

PLOT_CONT

L4

Plot contours for PLOT-LINE-PAR and CHANNEL-MAPS

Examples:

    >> plot-line-parameters<CR>
    Velocity range (km/s) ? [ -10.000,  20.000] <CR>
    R.A. offset scaled from   80.000 to  -60.000
    Dec. offset scaled from   30.000 to  -30.000
    Which parameters do you want to plot?
    Tmax (1), Vmax (2), Integrated Intensity (3),
    Equivalent width (4), Centroid (5),  or 2nd Moment (6) 
    [ 3]  1 4 5 6 <CR>

    -- Make-line-pars -- 
      extracting maps from data...
      applying smoothing to maps...
      - map 1 smoothed
      - map 2 smoothed
      - map 3 smoothed
      - map 4 smoothed
     # maps in mapplane.tmp:           4