AnimationClipの最後の座標・回転を取得する

GetClipInfomation.cs

using System.Collections;
using UnityEngine;
using UnityEditor;
using System.Linq;
using UnityEngine.Assertions;

[CreateAssetMenu]
public class GetClipInfomation : ScriptableObject {

	// 検証するAnimationClip
	[Header("IN")]
	[SerializeField] AnimationClip clip = null;

	// 結果を格納
	[Header("RESULT")]
	[SerializeField]  Vector3 position;
	[SerializeField]  Quaternion rotation;

	[ContextMenu("Do")]
	void Do() 
	{
		// AnimationClipよりカーブ一覧を取得
		// カーブに格納されているプロパティ名がわからないならば、bridge.propertyNameで確認
		var bridges = AnimationUtility.GetCurveBindings (clip);
//		foreach( var bridge in bridges){
//			Debug.Log (bridge.propertyName);
//		}

		// 指定座標の最初と最後を取得
		// 回転はlocalEulerAnglesRaw もしくは 他のパラメータ名（bridges.propertyNameで確認）
		// 移動も回転もしていないならエラーになる（要例外処理）
		var localPositionXCurve = AnimationUtility.GetEditorCurve (clip, bridges.First (c => c.path == string.Empty && c.propertyName.StartsWith ("m_LocalPosition.x")));
		var localPositionYCurve = AnimationUtility.GetEditorCurve (clip, bridges.First (c => c.path == string.Empty && c.propertyName.StartsWith ("m_LocalPosition.y")));
		var localPositionZCurve = AnimationUtility.GetEditorCurve (clip, bridges.First (c => c.path == string.Empty && c.propertyName.StartsWith ("m_LocalPosition.z")));

		var localRotationXCurve = AnimationUtility.GetEditorCurve (clip, bridges.First (c => c.path == string.Empty && c.propertyName.StartsWith ("localEulerAnglesRaw.x")));
		var localRotationYCurve = AnimationUtility.GetEditorCurve (clip, bridges.First (c => c.path == string.Empty && c.propertyName.StartsWith ("localEulerAnglesRaw.y")));
		var localRotationZCurve = AnimationUtility.GetEditorCurve (clip, bridges.First (c => c.path == string.Empty && c.propertyName.StartsWith ("localEulerAnglesRaw.z")));

		// 座標と回転の移動値を取得
		position= new Vector3 (
			localPositionXCurve.length != 0 ? localPositionXCurve.keys [localPositionXCurve.length - 1].value - localPositionXCurve [0].value : 0,
			localPositionYCurve.length != 0 ? localPositionYCurve.keys [localPositionYCurve.length - 1].value - localPositionYCurve [0].value : 0,
			localPositionZCurve.length != 0 ? localPositionZCurve.keys [localPositionZCurve.length - 1].value - localPositionZCurve [0].value : 0);

		rotation = Quaternion.Euler (
			localRotationXCurve.length != 0 ? localRotationXCurve.keys [localRotationXCurve.length - 1].value - localRotationXCurve [0].value : 0,
			localRotationYCurve.length != 0 ?  localRotationYCurve.keys [localRotationYCurve.length - 1].value - localRotationYCurve [0].value : 0,
			localRotationZCurve.length != 0 ? localRotationZCurve.keys [localRotationZCurve.length - 1].value - localRotationZCurve [0].value : 0);
	}
}

1. Assets/Create/GetClipInfomationよりClip登録用のアセットを取得
2. INに調べたいAnimationClipを登録
3. ギア（Reset等がある）マークより「Do」を選択
4. 移動距離と回転がResultに表示される