RethinkRobotics-opensource / sns_ik

Saturation in the Null Space (SNS) Inverse Kinematic Library
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Add technical reference for the position IK solver #66

Open MatthewPeterKelly opened 6 years ago

MatthewPeterKelly commented 6 years ago

The position IK solver works by using gradient descent combined with a barrier function. It would be great if we had some sort of technical reference to go over this math in detail.

rethink-forrest commented 6 years ago

Two quick notes: 1) The code pull-request for this is #33 2) It seems like I based the decaying logarithmic barrier function partial from these notes: http://s-mat-pcs.oulu.fi/~keba/Optimointi/OP_penalty_engl.pdf