_query_pixel_types()

rtreader.RasterReader._query_pixel_types (   self )

protected

Definition at line 181 of file rtreader.py.

    def _query_pixel_types(self):
 
        types = []
        sql = 'SELECT '
        for i in range(0, self.num_bands):
            if i != 0:
                sql += ','
            nband = i + 1
            sql += ' st_bandpixeltype(%s, %d) ' % (self._column, nband)
        sql += ' FROM ' + self._table
        return self._query_single_row(sql)

References rtreader.RasterReader._column, rtreader.RasterReader._query_single_row(), rtreader.RasterReader._table, and rtreader.RasterReader.num_bands.

Referenced by rtreader.RasterReader._get_pixel_types().

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