9.11. - zs close filter, synchronous
tells the filter process that the current plot is complete, like
zx, but it also causes C-PLOT to pause until the
filter is finished writing to your terminal.
zsThe synchronization option is useful for filters that write graphics commands to your terminal over the same serial line as ordinary text. Graphics commands from the filter program may get garbled with text from the plot program. The synchronized close,
zs, stops this
intermingling of output.
As an example,
zqzkds draws the plot,
key and date with quiet mode on and prevents the
PLOT-> prompt
from being issued until the last graphics command has been sent to
the terminal.
As with
zx, a second
<return> will return
you to text mode.
- 9.11.1. - Pen numbering