How to generate knn files?

[songw-zju]

Hi, thanks for your great work and share the code!
When I try to reproduce your result, the error occurs because the knn fiiles don't exist. I would like to know how to generate knn files.

[haibo-qiu]

Hi there~

If there is no existing knn file, the code is supposed to generate a new one by itself, as you can see this line

I will double-check this issue for inference.
Thanks

[haibo-qiu]

I think this issue came from line96-97 in SemanticKITTI.py, where I assert the same length of scan and KNN. Actually, the code can handle the non-knn existing situation.

Simple deleting these codes can fix the issue, and I will update the repo asap.

Thanks~

[songw-zju]

Thanks for your kind consideration! I have solved the problem.