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Video Test Generator User Guide 257

draw video CENTering markers

Class Custom image primitive

Description Draws a small cross in the center of active video. If the format has an even number of

active pixels, the vertical line is 2 pixels thick. The horizontal line is 2 pixels thick if the

format has an even number of active lines. The primitive uses a single parameter, the

color of the cross.

Command syntax CENT color

available colors

Other required

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.

CENT red // Draw a small red cross in center of active video

ALLU // Update hardware to current buffer contents

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Quantum-data 802BT Bedienungsanleitung Seite 267