I have a problem creating a bar chart at runtime.
At the moment I can create a bar chart from a predefined XML with an embedded Excel. But I want to manipulate the data the bar chart shows. Editing the embedded Excel is not the problem. But I think I need to change the chart.xml, that is describing my chart. But I wasn´t able to figure out, how I can manipulate this XML. Do I have to use xPath? But on which Java Object?
Attached is a Screenshot of example values I want to change.
I hope somebody can help me or give me a hint