AIPS HELP file for TVLABEL in 31DEC24
As of Thu Nov 7 0:40:00 2024
TVLABEL: Verb to label the (map) image on the TV
INPUTS
GRCHAN 0.0 7.0 Graphics channel to use: 0->2
LTYPE -410.0 410.0 Type of labeling: 1 border
2 no ticks, 3 standard, 4 rel
to center, 5 rel to subim cen
6 pixels, 7-10 no non-axis
DOCIRCLE -1.0 1.0 > 0 => extend ticks to form
coordinate grid
CBPLOT -4.0 4.0 Position for beam plot:
0: don't plot beam
1: lower left (default)
2: lower right
3: upper right
4: upper left
< 0 -> erase beam area
Choice of image to label is done via TV cursor
(if more than one image of a map is visible)
HELP SECTION
TVLABEL
Type: Verb
Use: TVLABEL will label an image on the TV. If there is more than
one image (of a map) visible on the TV, the routine will ask the
user to position the cursor on any part of the image he wishes
labeled and then to press any button. The coordinates, but not
the labels, will appear on top of the image if there is not
enough room on the outside. Wedges may be labeled with
TVWLABEL, not TVLABEL.
Adverbs:
GRCHAN......Graphics channel to use for the lettering. Graphics
channel 8 is used for a black background. Unless
changed by GWRIT or the .Xdefaults file (see HELP XAS),
the normal color for channel 1 is yellow, 2 the
previously familiar green, 3 pink, 4 cyan, 5 reddish, 6
dark blue, 7 orange. 0 -> 2.
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.
Add n * 100 to alter the metric scaling.
DOCIRCLE....False (<= 0) means that tick marks are short lines
extending inward from the plot borders. True (>0)
requests that a full coordinate grid be drawn.
CBPLOT......Selects the corner in which the half-power beam plot is
placed
0: no beam plot
1: lower left
2: lower right
3: upper right
4: upper left
< 0 -> plot as abs(CBPLOT) but erase any graphics in the
area of the beam plot
EXPLAIN SECTION