9.9. - zw don't close filter yet
keeps the graphics device open while you build up a complex plot with multiple drawing commands.
zwComplex plots having multiple data sets, windows, annotations, etc. are put together by entering
zw before the drawing commands.
When all elements of the plot have been drawn, a
close filter
command,
zx or
zs, explained below, is used to complete
the plot.
When the do not close filter yet option is used, the filter will stay open until a
zx or
zs command is entered, another
filter is initialized with the
zi command, you interrupt a command
with a
^C or you exit the plot program.
When
zw is used in conjunction with printing devices, the plot
will not be sent to the printer until a
close filter
command
is issued.
Display terminals that have distinct graphics and text
modes will remain in graphics mode until a
close filter
command
is entered.
The
zw command is comparable to the
don't move pen off page
command,
pw, described in Chapter 7.