Being a retired scientist I of course tried to understand the theory instead of my usual method of just pushing the button labeled ‘Do Not Push This Button!’. For location coordinates have you tried using the same X,Y coordinates for locations as used in a Panel? Your Origin (0,0,0) would be the top left corner of the panel and the Listeners would be at locations farther out than the trackage. That seems the easiest way to do it since you already have those coordinates.
--
Mike Heintzman
Modeling the P&PU since 1953
Mike Heintzman