MARKER: quaternion + distance calculation

[jimzers]

self contained in the marked loop.

KinovaGrasping/gym-kinova-gripper/boundary_detection.py

Line 273 in e454bac

for idx in range(total_number_of_points):

[jimzers]

NOTE: IT GOES TO LINE 309.
TODO: Figure out what Quaternion_distance means

Translation_error: The distance off the center (the "ideal" grasp location)
Quaternion_distance: Not sure... Based on dot product distance stuff.

[jimzers]

Quaternion_distance corresponds to the angle in degrees between the two orientations (starting grasp vs perturbed grasp)

It is calculated by 1. getting dot product of both quaternions, 2. arccos => radians, 3. rad2deg => degrees