[Greg McKaskle]

I was once good at head-math, but I guess things change. The formula is correct, you take half of the blue rectangle. The example values are wrong, half of 11.4 is 5.7, not 6.7.

As for running on the laptop. The LV example project does both. A LV project can have code for multiple devices or target devices. For simplicity, the FRC projects tend to have only one. The rectangular target processing project has roughly the same code with slight differences in how it is invoked under both the My Computer section of the project and the RT cRIO section. The tutorial goes into detail about how to Save As the RT section to run on the cRIO, but if you prefer, you can pretty easily integrate the My Computer VI into your dashboard, do the processing, and arrange for the values to be sent back to the robot via UDP or TCP.

If you prefer to use OpenCV, it should theoretically run both locations, but I'm not aware of any port of it for the PPC architecture. Both OpenCV and NI-Vision run on the laptop.

If I glossed over too many details, feel free to ask more detailed questions.

Greg McKaskle