public PieSeries addSeries ( String seriesName , Number value ) { PieSeries series = new PieSeries ( seriesName , value ) ; if ( seriesMap . keySet ( ) . contains ( seriesName ) ) { throw new IllegalArgumentException ( "Series name >" + seriesName + "< has already been used. Use unique names for each series!!!" ) ; } seriesMap . put ( seriesName , series ) ; return series ; }
Add a series for a Pie type chart