Quantum Data 801GC, 801GF, 801GX manual Rect, Draw a RECTangle, Scal, Self CALibrate, 158

RECT	draw a RECTangle
Classification:	Custom image primitive
Command Syntax:	RECT <color> <width> <height> <x> <y> <fill pattern>
Limits:	<color> = available colors
	<width> = total number of horizontal pixels
	<height> = total number of lines
	<x> = positive integer number
	<y> = positive integer number
	<fill pattern> = available fill paterns
Query Syntax:	None
Description:	Draws a rectangle whose sides are parallel to the vertical and
	horizontal axes of displayed video. It uses six (6) parameters.
	The first is the color of the line. The next two parameters are
	the pixel width and height of the rectangle. The fourth and
	fifth parameters are the X and Y coordinates for the top left-
	hand corner of the rectangle. The last parameter is the fill.

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: R E C T g r a y 5 0 1 5 2 0 5 0 4 0 G r a y P a t 5 0

/ / D r a w a 5 0 % g r a y r e c t a n g l e 1 5

/ / p i x e l s w i d e a n d 2 0 p i x e l s h i g h / / w i t h t o p l e f t c o r n e r a t X = 5 0 ,

/ / Y = 4 0 F i l l w i t h 5 0 % a c t i v e p i x e l s

A L L U / / U p d a t e h a r d w a r e t o c u r r e n t / / b u f f e r c o n t e n t s

SCAL	Self CALibrate
Classification:	Direct processor control
Command Syntax:	SCAL
Query Syntax:	None
Description:	The SCAL command causes generator equipped with self-
	calibration circuitry to go through its self-calibration cycle.
Other Required Cmds:	None
Example:	S C A L / /	H a v e g e n e r a t o r g o t h r o u g h s e l f
	/ /	c a l

6-158 Chapter 6: Programming Model 801GC, 801GF & 801GX¥Rev. A