/// <summary>
        /// Returns size of volume in every dimension.
        /// </summary>
        /// <returns>List containing 3 values(for x,y,z axis).</returns>
        public IList <double> GetObjectSize()
        {
            var xyzSize = new List <double> {
                _volume.GetXRange()[1], _volume.GetYRange()[1], _volume.GetZRange()[1]
            };

            return(xyzSize);
        }