fl - flag a location on the plot Matthew Miller
EXAMPLES:
fl 3 ch: draw line at channel 3
fl 115232 fr: draw line at frequency 115232
fl 57 lt:0 draw dotted line at location 57 in
whatever coordinates the current
graph is plotted in
pl;cp;fl 0 draw a line at x=0 on a contour plot
DESCRIPTION:
Fl draws a vertical line on the current plot at a horizontal location given
in any type of units (channel, frequency, or velocity). The default type of
unit is the current plot; thus, if the last plot was made in velocity, fl will
interpret the given horizontal location as a velocity. Different units may be
used by using 'ch' (channels), 'fr' (frequency), or 'vl' (velocity).
As a side effect, fl will also draw a line on a contour plot if a spectrum was
recently plotted.
The line may be drawn in any line type by setting 'lt' to the number of the
desired type. The default value is 9 (thin solid line). The range of line
types is 0 to 255. The actual line type depends on the device. Values
between 0 and 99 are coded by the two digits. The ten's digit controls the
thickness or color with 0 thin and 9 thick. The units digit controls
the dottedness with 0 most dotted and 9 solid. Special line types are:
200 - the border of a plot, 201 - ticks on the border, 202 - the grid line with
zero value, and 203 - all other grid lines. Line type 255 will be suitable
for plotting data.
This document was last updated on
Tue Oct 17 16:24:05 EDT 2000
by Marc W. Pound.