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Chapter 6: Programming
Model 801GC, 801GF & 801GX¥Rev. A
TEXT
draw TEXT string
Classification:
Custom image primitive
Command Syntax:
Text <color> <x> <y> <fontname> <“text “>
Limits:
<color> = available colors
<x> = position of left edge of page in pixels
<y> = position of top edge of page in pixels
<fontname> = available fonts
<text> = approx. 30 characters (must be enclosed by quotes)
Query Syntax:
None
Description:
Draws a user-defined text string. It uses five (5) parameters.
The first is color. The next two are the X and Y coordinates for
the upper left corner of the starting position of the string. The
fourth parameter selects the font. (Recall that only #0 Sys 16
and #1 OPIX 9 are full alphanumeric sets.) The last parameter
is the text string. If the string is longer than one word, it must
be contained inside quotation marks.
Other Required Cmds:
The FMTU command instructs the generator to use the new
setting. The ALLU command updates hardware to the new setting
and redraws the test image.
Example:
T E X T r e d 5 0 4 0 o p i x 9 " H E L L O W O R L D "
/ / D r a w r e d " H E L L O W O R L D " a t x = 5 0
/ / y = 4 0 i n o p i x 9 f o n t
TOBL
set levels relative TO BLanking
Classification:
Custom image primitive
Command Syntax:
None
Query Syntax:
None
Description:
Temporarily changes how the signal levels are determined for
a given color intensity level. The default method uses black as
the 0% reference level and peak video as the 100% level. Inserting
TOBL moves the 0% reference point to the blanking (blacker
than black) pedestal level. The reference point remains shifted
only for as long as the image is displayed.
Other Required Cmds:
None
Example:
T O B L
Summary of Contents for 801GC, 801GF, 801GX
Page 1: ...Owner s and Programmer s Manual Model 801GC 801GF 801GX Portable Video Signal Generators ...
Page 16: ...xiv Table of Contents Models 801GC 801GF 801GX Rev A Notes ...
Page 17: ...1 1 Features Product Overview Chapter 1 Introduction ...
Page 21: ...2 1 Operating Modes Displays Indicators Knobs Switches Buttons Chapter 2 Basic Operation ...
Page 31: ...3 1 Introduction Format charts Chapter 3 Built In Formats ...
Page 39: ...4 1 Description of the test images and how to use them Chapter 4 Built In Images ...
Page 126: ...5 14 Chapter 5 Making Connections Model 801GC 801GF 801GX Rev A Notes ...
Page 304: ...6 178 Chapter 6 Programming Model 801GC 801GF 801GX Rev A Notes ...
Page 305: ...7 1 Power on Computer Interfacing If all else fails Chapter 7 Troubleshooting ...
Page 346: ...A 6 Appendix A Specifications Model 801GC 801GF 801GX Rev A Notes ...
Page 355: ...Notes ...