About Location

[atusi-nakajima]

In carla_env.py, on line 56, etc., there is a parameter for the location, what does each of these three numbers mean?
( self.dests = [[4.46, -61.46, 0], [-49.53, -2.89, 0], [-6.48, 55.47, 0], [35.96, 3.33, 0]] )
And how do I convert the data into a numerical value when I decide on the location I want?

[cjy1992]

These are (x, y, z) for the destination points. line 56 specifies three exit point of the roundabout.