def relim(self):
<EOL>self.dataLim.ignore(True)<EOL>self.ignore_existing_data_limits = True<EOL>for line in self.lines:<EOL><INDENT>self._update_line_limits(line)<EOL><DEDENT>for p in self.patches:<EOL><INDENT>self._update_patch_limits(p)<EOL><DEDENT>
recompute the data limits based on current artists