matheuscamarques opened a new issue, #925:
URL: https://github.com/apache/poi/issues/925
Hello POI Team,
**What is the problem?**
Apache POI (tested up to 5.2.5) does not currently offer high-level XDDF
support for creating Funnel Charts, a chart type introduced in Office 2016.
The existing ChartTypes enum does not include FUNNEL, and there is no
XDDFChartData implementation (like XDDFunnelChartData) for it.
**What is the current workaround?**
The only way to generate a Funnel Chart is to drop down to the low-level XML
classes (org.openxmlformats.schemas...). This involves:
1. Manually creating a CTFunnelChart instance in the CTPlotArea.
2. Building the CTFunnelSer (series) by hand.
3. Manually setting up the data sources (CTAxDataSource, CTNumDataSource).
4. Manually creating and linking the axes (CTCatAx, CTValAx).
This low-level approach is complex, error-prone, and not well-documented.
**What is the requested solution?**
We request that high-level support for Funnel Charts be added to the XDDF
charting library, consistent with other chart types like Bar, Line, and Pie
charts.
Ideally, the API would look something like this:
// 1. Add ChartTypes.FUNNEL
XDDFChartData data = chart.createData(ChartTypes.FUNNEL, categoryAxis,
valueAxis);
// 2. Add a corresponding XDDFunnelChartData (or similar)
XDDFChartData.Series series = data.addSeries(categories, values);
series.setTitle("My Funnel", null);
// 3. Handle colors, data labels, etc., through the high-level API.
// (e.g., data.setVaryColors(true))
This enhancement would greatly simplify the creation of modern charts and
make POI even more powerful.
Thank you!
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