docs: def _set_rc(self):
          """Method to set the rcparams and defaultParams for this plotter"""
          base_str = self._get_rc_strings()
          # to make sure that the '.' is not interpreted as a regex pattern,
          # we specify the pattern_base by ourselves
          pattern_base = map(lambda s: s.replace('.', '\.'), base_str)
          # pattern for valid keys being all formatoptions in this plotter
          pattern = '(%s)(?=$)' % '|'.join(self._get_formatoptions())
          self._rc = rcParams.find_and_replace(base_str, pattern=pattern,
                                               pattern_base=pattern_base)
          user_rc = SubDict(rcParams['plotter.user'], base_str, pattern=pattern,
                            pattern_base=pattern_base)
          self._rc.update(user_rc.data)
  
          self._defaultParams = SubDict(rcParams.defaultParams, base_str,
                                        pattern=pattern,
                                        pattern_base=pattern_base)