[irtutil.l] add minjerk-interpolator-so3 and linear-interpolator-so3 #604
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回転行列のためのinterpolatorです。
回転行列は特異点等の問題があるので、今ある
linear-inerpoilator
やminjerk-inerpoilator
を使うことができませんでした。下図の3つの姿勢を補間する場合。



今あるlinear-interpolator

特異点周辺のため無駄に大きく動く
今あるminjerk-interpolator

特異点周辺のため無駄に大きく動く
今回追加したlinear-interpolator-SO3

まっすぐ補間してくれる. キーポーズの箇所で角速度が不連続に変わる。
今回追加したminjerk-interpolator-SO3

まっすぐ補間しつつ、始点と終点の角速度・角加速度を考慮して補間することで、軌道を滑らかにつなげることができる。
gif動画のコード