creating chart filter event handler

G'day, all. I have a pie chart from which I would like to remove all 0-sized slices from both the pie and the legend. I can create a filter to do this by checking that the data row that I've used to define the pie slice is > 0.

I'd like to write a generic method to do this via the event handler but I'm uncertain of how to use the JS API to do this. I see the afterDataSetFilled API but I don't understand what values the series & dataset args provide.

Any help is appreciated. Thanks!

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Virgil Dodson

This link is for an older version but shows what series and dataset are used for.<br />
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<a class='bbc_url' href='http://www.birt-exchange.org/documentation/BIRT_220/ChartJavadoc/chart/api/org/eclipse/birt/chart/script/ChartEventHandlerAdapter.html#afterDataSetFilled(org.eclipse.birt.chart.model.component.Series, org.eclipse.birt.chart.model.data.DataSet, org.eclipse.birt.chart.script.IChartScriptContext'>ChartEventHandlerAdapter (BIRT Chart Engine API)</a>)<br />
<br />
I also attached a report design that uses the afterdataset filled method to change the chart size.