[jCharts-users] creating a graph w/ multiple data sets

[Carlos D B. <cdb...@us...>]

I have various data sets that use the same scale so i would like to create 
one graph that has mulitple lines (each line representing system usage as 
a function of time).  The closest example I have seen is the 
ComboChartServlet, except that I would like to have multiple line graphs 
rather than a line and bar graph.  Perhaps there is another graph type 
that better suits my needs?  I also have a working servlet modeled after 
the ScatterPlotServlet example but I likewise can't find a way to get it 
to display multiple lines. 


i think the relevant code is the following few lines where I create the 
dataSeries, add the two datasets to it and create the chart.  Perhaps 
noteworthy is that all the parameters i'm using for the 
addIAxisPlotDataSet method are the same except for the data portion, as I 
will work on creating appropriate legends and colors later.

IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, xAxisTitle, yAxisTitle, title );

dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( data, legendLabels, linePaints, ChartType.LINE, this.lineChartProperties ) );

dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( data2, legendLabels, linePaints, ChartType.LINE, this.lineChartProperties ) );

AxisChart axisChart = new AxisChart( dataSeries, this.chartProperties, this.axisProperties, this.legendProperties, this.width, this.height );

ServletEncoderHelper.encodeJPEG13( axisChart, 1.0f, resp );

This results in just displaying the results for the last data set.

Any help would be greatly appreciated.

thanks,

Carlos Bermudez
Rochester, Minnesota
email: cdb...@us...