Update the comment about coordinate transformation

udacity / CarND-Kidnapped-Vehicle-Project

MIT License

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Update the comment about coordinate transformation #12

Closed jakehsiao closed 7 years ago

jakehsiao commented 7 years ago

Note that I have debugged for 2 days about this bug caused by wrong discription of coordinate system. Both GPS and map coordinate system have the y that points upwards and the car's coordinate system has y points downwards.

awbrown90 commented 7 years ago

Yeah, I think this was a mistake about the map's coordinate system because usually GUI coordinates have the y axis pointing downwards instead of up. This is clearly not the case though actually, so it is a very confusing comment. I will clean that up, thanks.