From Brown University Robotics
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The soccer field, overlaid in "ideal" coordinates, ie, those that are used to position objects on the overhead_map screen via an instance of Overhead_Map_Objs.
θ == 0 is in the direction of +x, increases clockwise, and is measured in radians. x and y are as marked and are measured in some arbitrary units. Here, from real-life measurements, x and y are measured in meters. (Each meter is marked with a notch, ie the field is approximately 4 meters long and 2.5 meters wide.)
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