Vector Helper Extention Method

gistfile1.cs

        static readonly Vector ANGLE_BASE_VECTOR = new Vector(1, 0);

        /// <summary>
        /// ベクトルの角度をDegreeで返します
        /// </summary>
        /// <param name="vector">ベクトル</param>
        /// <returns>角度（Degree値）</returns>
        public static double GetAngle(this Vector vector)
        {
            return Vector.AngleBetween(ANGLE_BASE_VECTOR, vector);
        }