Confusion about the existence of trajectory query

[hutao568]

https://github.com/PJLab-ADG/DetZero/blob/main/refining/detzero_refine/datasets/waymo/waymo_position_dataset.py#L161C15-L161C15

I don’t understand why GT information is used to fill the trajectory. Is this place filled with the length of the predicted trajectory that is less than 200?

[superkoma]

It's used to align the format to assign the corresponding supervised information. 200 is suitable for WOD, it can be changed to assign your own data setting.