Quantum Data 802R Guide de l'utilisateur Page 565

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Video Test Generator User Guide 555
USIZ
Unit of measure used for physical SIZes
Class System control
Description Sets the units of measure assumed by HSIZ and VSIZ commands to establish the
physical size of the image that appears on the CRT (context sensitive; see FMTB and
FMTE). The USIZ? query returns the current setting of USIZ.
Note: Changing the USIZ parameter between inches and millimeters will convert the
current HSIZ and VSIZ values to match the new unit of measure. For example, if USIZ is in
inches and the current HSIZ is 10 (inches), changing USIZ from inches to mm will change
HSIZ to 25.4 (mm). The USIZ command should be sent before specifying physical sizes in
format command files.
Command syntax USIZ units
units
0 = sizes not given (use default)
1 = inches
2 = mm
Query syntax USIZ?
Query response units
Other required
commands
The ALLU command updates hardware to the new setting and redraws the test image,
taking the new units into account.
Example
FMTB // Begin editing session
// One or more format editing commands ...
USIZ 1 // Select inches as unit of measure in buffer
HSIZ 10.4 // Set width to 10.4 in buffer
VSIZ 7.8 // Set height to 7.8 in buffer
ALLU // Test the new settings
// One or more format editing commands ...
FMTE // End editing session
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