def change_geometry(self, numrows, numcols, num):
self._rows = numrows<EOL>self._cols = numcols<EOL>self._num = num-<NUM_LIT:1><EOL>self.update_params()<EOL>self.set_position(self.figbox)<EOL>
change subplot geometry, eg. from 1,1,1 to 2,2,3