Roundabout_env

[lmi5027]

Hi, I'm new to this highway-env collection, and started looking at the roundabout_env. I'm not understanding when I plot the straight, sine and circular lanes: nx_to_ne, ne_to_wx, ee_to_nx they are plotted on bottom of roundabout, and, sx_to_se, we_to_sx, se_to_ex plots on the top. But when I run the complete code, the vehicles operate inverse to the way it is plotted, they operate the correct north and south routes. Am I missing a translation or rotation that is being done in the graphics.py?