Consult the data preprocessing problems

[TimHo0331]

Dear authors,
Very thankful for providing the code! A very interesting work!
May I ask a question about data preprocessing of the map?
Does the map_api in data_utils.py and data_proprocess.py refer to some other materials? (e.g. find the route, depth first search, generate target course,...) This part is kind of difficult to understand. And I want to ask if you could refer to some materials to help me know how to preprocess the lane graph?
Thank you so much!

[MCZhi]

Hi, @panda2020-sky, thank you for your interest. Part of the code is borrowed from argoverse map_api (e.g., dfs) and python robotics (e.g., generate target course). You may check their code to know the details.