protected LasPoint(byte[] rawBytes, int startPosition)
{
var position = startPosition;
//_x = BitConverter.ToInt32(rawBytes, position);
_x = MyBitConverter.ToInt32(rawBytes, position);
position += sizeof(int);
//_y = BitConverter.ToInt32(rawBytes, position);
_y = MyBitConverter.ToInt32(rawBytes, position);
position += sizeof(int);
//_z = BitConverter.ToInt32(rawBytes, position);
_z = MyBitConverter.ToInt32(rawBytes, position);
position += sizeof(int);
_intensity = (ushort)MyBitConverter.ToInt16(rawBytes, position);
position += sizeof(ushort) + 1;
_classification = (byte)(rawBytes[position] & 0x1F);
position += 3;
_pointSourceId = (ushort)MyBitConverter.ToInt16(rawBytes, position);
}