Video Test Generator User Guide 355
GPEL?
Get PixEL color components
Class Signal analyzer - Pixel data
Description Takes the (x, y) coordinates address of a pixel and returns the red, green, and blue color
components of the pixel at that address.
Query syntax GPEL? x y
Query response R, G, B
Possible errors Should this info be integrated into the Query response area, instead of creating a new
label?The GPEL? query may respond back with one of the following errors in case of a
parameter is not set correctly (or in case the setup is not correct).
Example
PDSX 128 //sets patch starting at x-pixel 128
PDSY 256 //sets patch starting at y-pixel 256
PDSH 64 //sets patch height at 64 pixels
PDSW 96 //sets patch width at 90 pixels
PDAU //captures patch of image
GPEL? 128 256 //read RGB color components at pixel address 128,256
0,255,0
Related commands PDAU
PNSeedExceedsLimit 2800
PNLengthExceedsLimit 2801
PNNotSupported 2802
NoInputSupported 2803
XcoordOutOfRange 2804
YcoordOutOfRange 2805
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