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http://www.openoffice.org/issues/show_bug.cgi?id=82971





------- Additional comments from i...@openoffice.org Thu Feb  4 16:38:22 +0000 
2010 -------
The algorithm implemented is straight forward:
If the categories do span multiple rows and multiple columns, the direction of
the first data series is detected. If the data for the first series comes from
rows, the categories are split into multiple rows. Otherwise the categories are
split into multiple columns. The split categories are then applied as different
hierarchical levels at the x-axis.
This algorithm does not produce exactly the same results for all the border
cases shown in the attached example document chart_sourcedata_category_.... But
at this state I assume that it is not worth the effort to make the algorithm
extreme complex for those exotic scenarios. Future may tell more.
I'll attach an example document showing more typical everyday examples
'HierarchicalAxesLabel.xls'.



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