About the function "patch_for_depth_guided_range" in triangulation.py

[Merical]

Thank you for your remarkable work!

The implementation of learnable triangulation is a great inspiration.

But I'm confused about the function "patch_for_depth_guided_range" in triangulation.py. The calculation of the fundamental matrices and epipolar lines make sense to me. But the meaning of variables like x2ord, y2ord, x2, and y2 isn't clear to me.

Would you please help to explain this function? Thank you.