/// <summary>
        /// Initializes a new instance of the <see cref="PointCloudBinarySourceEnumerator"/> class.
        /// This version does not use a process, so that it can be managed by a composite.
        /// </summary>
        /// <param name="source">The source.</param>
        /// <param name="buffer">The buffer.</param>
        public PointCloudBinarySourceEnumerator(IPointCloudBinarySourceSequentialEnumerable source, BufferInstance buffer)
        {
            m_source = source;
            m_stream = m_source.GetStreamReader();
            m_buffer = buffer;
            m_process = null;

            m_endPosition = m_source.PointDataOffset + m_source.Count * m_source.PointSizeBytes;

            m_usableBytesPerBuffer = (m_buffer.Length / m_source.PointSizeBytes) * m_source.PointSizeBytes;

            Reset();
        }
        /// <summary>
        /// Initializes a new instance of the <see cref="PointCloudBinarySourceEnumerator"/> class.
        /// This version does not use a process, so that it can be managed by a composite.
        /// </summary>
        /// <param name="source">The source.</param>
        /// <param name="buffer">The buffer.</param>
        public PointCloudBinarySourceEnumerator(IPointCloudBinarySourceSequentialEnumerable source, BufferInstance buffer)
        {
            m_source  = source;
            m_stream  = m_source.GetStreamReader();
            m_buffer  = buffer;
            m_process = null;

            m_endPosition = m_source.PointDataOffset + m_source.Count * m_source.PointSizeBytes;

            m_usableBytesPerBuffer = (m_buffer.Length / m_source.PointSizeBytes) * m_source.PointSizeBytes;

            Reset();
        }
        public PointCloudBinarySourceEnumerator(IPointCloudBinarySourceSequentialEnumerable source, ProgressManagerProcess process)
        {
            m_source = source;
            m_stream = m_source.GetStreamReader();
            m_buffer = process.AcquireBuffer(true);
            m_process = process;

            m_endPosition = m_source.PointDataOffset + m_source.Count * m_source.PointSizeBytes;

            m_usableBytesPerBuffer = (m_buffer.Length / m_source.PointSizeBytes) * m_source.PointSizeBytes;

            Reset();
        }
        public PointCloudBinarySourceEnumerator(IPointCloudBinarySourceSequentialEnumerable source, ProgressManagerProcess process)
        {
            m_source  = source;
            m_stream  = m_source.GetStreamReader();
            m_buffer  = process.AcquireBuffer(true);
            m_process = process;

            m_endPosition = m_source.PointDataOffset + m_source.Count * m_source.PointSizeBytes;

            m_usableBytesPerBuffer = (m_buffer.Length / m_source.PointSizeBytes) * m_source.PointSizeBytes;

            Reset();
        }