def _set_mode(self, mode):
if mode == CENTER:<EOL><INDENT>self._call_transform_mode = self._center_transform<EOL><DEDENT>elif mode == CORNER:<EOL><INDENT>self._call_transform_mode = self._corner_transform<EOL><DEDENT>else:<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>
Sets call_transform_mode to point to the
center_transform or corner_transform