Comment 15 for bug 258705

bSortByXValues brings there:
http://opengrok.libreoffice.org/xref/core/chart2/source/view/main/ChartView.cxx#784

Searching about how is defined data point gives this:
STR_TIP_DATAPOINT which leads there:
http://opengrok.libreoffice.org/xref/core/chart2/source/controller/dialogs/ObjectNameProvider.cxx#498

But then, I'm a bit stuck.

Kohei/Markus/Eike: any idea here?