Quantum Data 801GC, 801GF, 801GX manual Draw a centered Grid, Grih, 131

GRID	draw a centered GRID
Classification:	Custom image primitive
Command Syntax:	GRID <color> <number of horizontal boxes> <number of
	vertical boxes>
Limits:	<color> = available colors
	<number of horizontal boxes> = half of number of pixels
	<number of vertical boxes> = half of number of lines
Query Syntax:	None
Description:	Draws a crosshatch of a given color and forms a given number
	of boxes in each direction. All lines are one (1) pixel thick. All
	of the lines, in a given direction, are equally spaced. Any
	remaining pixels are distributed as equally as possible around
	the perimeter of the grid. This may cause the first and last lines
	in each direction not to be at the very edges of video.

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:	G R I D g r a y 7 5 1 4 1 0 / / D r a w a g r a y 7 5 g r i d
	/ / w i t h 1 4 h o r i z o n t a l a n d 1 0 ˚
	/ / v e r t i c a l b o x e 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
GRIH	draw a GRIll pattern of Horizontal lines
Classification:	Custom image primitive
Command Syntax:	GRIH <color> <number of pixels in line> < number of pixels
	in space>
Limits:	<color> = available colors
	<number of pixels in line> = number of pixels

<number of pixels in space> = number of pixels Query Syntax: None

Description: Draws equally spaced horizontal lines that form a grill over the entire active video area. The primitive uses three (3) parameters. The first is the color of the lines. The second is the thickness of the lines and the third is the thickness of the space between the lines.

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: G R I H	g r e e n 4 6 / / D r a w g r e e n g r i d w i t h
	/ / 4 - p i x e l l i n e s a n d 6 - p i x e l s p a c e 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

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