public void addRangeAxisConfig(RangeAxisConfig rangeAxis){
  addRangeAxisConfig(rangeAxisConfigs.size(),rangeAxis);
}

public void addRangeAxisConfig ( RangeAxisConfig rangeAxis ) { addRangeAxisConfig ( rangeAxisConfigs . size ( ) , rangeAxis ) ; }
adds a plotrangeaxis to this plotconfiguration . see also the comment of getplotrangeaxis ( ) for the contract for the x - dimension .
