# Uses of Interface
org.jfree.chart3d.data.ItemKey

Packages that use ItemKey
Package
Description
org.jfree.chart3d.data
Core data structures used as the building blocks for datasets in Orson Charts.
org.jfree.chart3d.data.xyz
Datasets that can be used by the `XYZPlot` class.
org.jfree.chart3d.plot
Standard plot types (`PiePlot3D`, `CategoryPlot3D` and `XYZPlot`) that can be used with the `Chart3D` class.

## Uses of ItemKey in org.jfree.chart3d.data

Classes in org.jfree.chart3d.data that implement ItemKey
Modifier and Type
Class
Description
`class`
`KeyedValues3DItemKey<S extends Comparable<S>,R extends Comparable<R>,C extends Comparable<C>>`
An object that references one data item in a `KeyedValues3D` data structure.
`class`
`KeyedValuesItemKey`
An object that references one data item in a `KeyedValues3D` data structure.

## Uses of ItemKey in org.jfree.chart3d.data.xyz

Classes in org.jfree.chart3d.data.xyz that implement ItemKey
Modifier and Type
Class
Description
`class`
`XYZItemKey<S extends Comparable<S>>`
An object that references one data item in an `XYZDataset`.

## Uses of ItemKey in org.jfree.chart3d.plot

Methods in org.jfree.chart3d.plot with parameters of type ItemKey
Modifier and Type
Method
Description
`abstract String`
AbstractPlot3D.`generateToolTipText(ItemKey itemKey)`
Returns the tool tip text for the specified data item, or `null` if no tool tip is required.
`String`
CategoryPlot3D.`generateToolTipText(ItemKey itemKey)`
`String`
PiePlot3D.`generateToolTipText(ItemKey itemKey)`
`String`
Plot3D.`generateToolTipText(ItemKey itemKey)`
Returns the tool tip text for the specified data item, or `null` if no tool tip is required.
`String`
XYZPlot.`generateToolTipText(ItemKey itemKey)`