def _read(self, stream, text, byte_order):
        '''
        Read the actual data from a PLY file.
        '''
        if text:
            self._read_txt(stream)
        else:
            if self._have_list:
                # There are list properties, so a simple load is
                # impossible.
                self._read_bin(stream, byte_order)
            else:
                # There are no list properties, so loading the data is
                # much more straightforward.
                self._data = _np.fromfile(stream,
                                          self.dtype(byte_order),
                                          self.count)

        if len(self._data) < self.count:
            k = len(self._data)
            del self._data
            raise PlyParseError("early end-of-file", self, k)

        self._check_sanity()

        Read the actual data from a PLY file.
        
visualizer/plyfile.py