DefaultIntervalCategoryDataset with StackedBarChart3D

[Ranjith]

Hi All,

Just wondering to know, how the interval on y-axis( numberaxis) will be calculated, if we display StackedBarChart3D using DefaultIntervalCategoryDataset ?

[david.gilbert]

It will ignore the fact that the dataset is an IntervalCategoryDataset and treat it as a regular CategoryDataset.

[Ranjith]

Hi david,
May i know the difference between DefaultIntervalCategoryDataset and DefaultlCategoryDataset?

[david.gilbert]

The difference you need to understand is between the CategoryDataset interface and the IntervalCategoryDataset interface. The latter is an extension of the former, and defines a range for the y-values (by specifying a start and an end y-value in addition to the y-value returned via the CategoryDataset interface). Some renderers (actually, just the IntervalBarRenderer at the moment) will use this range for display purposes, while others will ignore the range and just use the y-value.