MiniRobotLanguage (MRL)
ANA.GetXYFromBytePos
Get X- and Y- Position from the sequential Byte-Position-Number
Intention
This command will get the X- and the Y- Position from a Byte-Position 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.GetXYFromBytePos|0|409|$$XPO|$$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 "Pixelposition" that is 102.
1. Use ANA.GetXYFromBytePos with the Stack
This will use ANA.GetXYFromBytePos with the Stack.
ANA.New|0|100|400
ANA.GetXYFromBytePos|0|801
DMP.6
MBX.Result is on Stack.
ENR.
The Stack will look like this:
On TOS is the the "Pixelposition", followed by the X-Position, followed by the Y-Position.
Syntax
ANA.GetXYFromBytePos|[|P1][|P2][|P3][|P4]
Parameter Explanation
P1 - Image-Register number, if omitted, IR 0 will be used.
P2 - Byte-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 Pixel-Position on the TOS.
Example
'***********************************
' ANA.GetXYFromBytePos-Sample
'***********************************
ANA.New|0|100|400
ANA.GetXYFromBytePos|0|801
DMP.6
MBX.Result is on Stack.
ENR.
Remarks
-
Limitations:
-
See also:
•