AIPS HELP file for TVLABEL in 31DEC19
As of Sun Dec 16 20:49:25 2018
TVLABEL: Verb to label the (map) image on the TV
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
Choice of image to label is done via TV cursor
(if more than one image of a map is visible)
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.
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.