What coordinate system is used in the heat map plots

[msdrigg]

I am doing some tests with my assure device and I am having a hard time understanding what (x, y) refer to, and I didn't see anything in this repository that would clear that up.

There are two possibilities that come to mind but I am not sure which one is correct (or if both are incorrect). Can someone clear up which is the real one?

Possibility 1:

Possibility 2:

[alespour]

Coordinate system of original data (ie. before the X-axis values transformation in the heatmap handler). XY are horizontal coords, where negative X values denote positions to the left of the "center" of the radar beam.

[msdrigg]

Thank you!