MiniRobotLanguage (MRL)
ANA.GetXYFromPixelPos
Get X- and Y- Position from the sequential Pixel-Position-Number
Intention
This command will get the X- and the Y- Position from a sequential-Pixel-Position Number of a specified IR.
The result is 0-based, means that the upper left coordinate is 0,0.
You also need to know that each Pixel has 4 Bytes (24-Bit Color+1 Byte Alpha).
For example, if IR-0 has a resolution of 100x400
ANA.New|0|100|400
ANA.GetXYFromPixelPos|0|212|$$XPO|$$YPO
DMP.6
MBX.Result is $$XPO,$$YPO
ENR.
This is the result from the above Script. On the Stack you can also see the "Byteposition" that is 848.
The last number, 4 is from the ANA.New-Command.
1. Use ANA.GetXYFromPixelPos with the Stack
This will use ANA.GetXYFromPixelPos with the Stack.
ANA.New|0|100|400
ANA.GetXYFromPixelPos|0|212
DMP.6
MBX.Result is on the Stack.
ENR.
The Stack will look like this:
On TOS is the the "Byteposition", followed by the X-Position, followed by the Y-Position.
The last number, 4 is from the ANA.New-Command.
Syntax
ANA.GetXYFromPixelPos|[|P1][|P2][|P3][|P4]
Parameter Explanation
P1 - Image-Register number, if omitted, IR 0 will be used.
P2 - Pixel-Position to convert.
P3 - opt. Variable that will receive the X-Position, if omitted, TOS will be used.
P4 - opt. Variable that will receive the Y-Position, if omitted TOS will be used.
The Command will leave the Byteposition on the TOS.
Example
'***********************************
' ANA.GetXYFromPixelPos-Sample
'***********************************
ANA.New|0|100|400
ANA.GetXYFromPixelPos|0|212
DMP.6
MBX.Result is on the Stack.
ENR.
Remarks
-
Limitations:
-
See also:
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