lk - plot the locations of stacks
lk 10,-10,-8 5 If the relative coordinate system is odra-oddec this
will plot an x for each stack in the area between
+10' and -10' from the center in ra and between
-8' and +5' from the center in dec.
lk,8,-8,-8,8,psn: show the stack numbers at the position of each stac
in the given area.
lk dt: show the stack locations for the background directory,
using the current x and y limits.
lk ps:10 use dots instead of crosses to mark positions of spectra.
Lk is a quick way to find where the observations in a stacks file are. It
plots in the same size window as cm and can be used to make overlays showing
where the data is. Lk normally plots a cross at the location of each stack,
but if the psn: flag is given it will plot the stack number instead (useful
only in small areas).
Lk uses the current relative coordinate system. If a projection has
been specified with 'op', lk will use it. SEE COMMENTS on COORDINATES
in the write up on cm.
The sn:, fr:, hlb:, vlb:, and mlb: flags have the same use as in cm.
The dt: flag allows one to see where stacks are in the background directory.
The ps: flag allows a choice of plot symbols. See 'gm ?!' for list of plot
symbols. Dots (ps:10) or filled circles (ps:5 fill:) look nicer than crosses for
overlaying contour maps.
This document was last updated on
Tue Oct 17 16:24:05 EDT 2000
by Marc W. Pound.