7-16 HP IBASIC Supplement
Graphics and Display Techniques
SCPI Graphics Commands
SCPI Graphics Commands
In addition to the commands described earlier in this chapter, there are
several SCPI mnemonics that can be used to create graphics and
messages on the display of the analyzer.
These commands are instrument-specific mnemonics, not standard
IBASIC commands. They are also different from the previously described
IBASIC commands because an IBASIC display partition is not required.
This means that they can be used to write or draw directly to a
measurement window.
These commands, listed in Table 7-2 on page 7-17, are SCPI mnemonics
and are programmable from an external controller as well as from
IBASIC. The commands are of the following form
DISPlay:WINDow[1|2|10]:GRAPhics:<command>
The number specified in the WINDow part of the command selects where
the graphics are to be written.
WINDow1 draws the graphics to the channel 1 measurement window.
WINDow2 draws the graphics to the channel 2 measurement window.
WINDow10 draws the graphics to an IBASIC display partition.
TIP Graphics written directly to a measurement window are not redrawn
sweep-to-sweep. When SCPI graphics commands are used to write
directly to a measurement window, they write to the static graphics
plane (the same plane where the graticule is drawn). There is no
sweep-to-sweep speed penalty once the graphics have been drawn.
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