Regarding the issue of TopDownMultiChannel drawing

[pixeli99]

Hi, @QuanyiLi @pengzhenghao
Thanks to the authors for such great work. I have a few questions I would like to ask.

I feel it’s strange when I’m drawing the top-down obs; my parameters are as follows: why are the historical trajectory points of the vehicle not on the road? Is there a problem with the coordinate system?

return TopDownMultiChannel(
            self.config["vehicle_config"],
            False,
            False,
            frame_stack=3,
            post_stack=10,
            frame_skip=1,
            resolution=(self.config.obs_hw, self.config.obs_hw),
            max_distance=36,
        )

As you can see, the green dot should represent the vehicle's historical trajectory, but this coordinate seems strange? I feel like there might be an issue with the coordinates, but I'm not sure. Do you have any suggestions?