## Uses of Class
org.jfree.chart.plot.CategoryPlot

Packages that use CategoryPlot
org.jfree.chart: Core classes, including `JFreeChart` and `ChartPanel`.
org.jfree.chart.annotations: A framework for addings annotations to charts.
org.jfree.chart.plot: Plot classes and related interfaces.
org.jfree.chart.renderer.category: Plug-in renderers for the `CategoryPlot` class.

Uses of CategoryPlot in org.jfree.chart

Methods in org.jfree.chart that return CategoryPlot
`CategoryPlot` `JFreeChart.getCategoryPlot()` Returns the plot cast as a `CategoryPlot`.

Methods in org.jfree.chart with parameters of type CategoryPlot
`protected void` `StandardChartTheme.applyToCategoryPlot(CategoryPlot plot)` Applies the attributes of this theme to a `CategoryPlot`.

Uses of CategoryPlot in org.jfree.chart.annotations

Methods in org.jfree.chart.annotations with parameters of type CategoryPlot
`void` `CategoryTextAnnotation.draw(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, ValueAxis rangeAxis)` Draws the annotation.
`void` `CategoryPointerAnnotation.draw(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, ValueAxis rangeAxis)` Draws the annotation.
`void` `CategoryLineAnnotation.draw(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, ValueAxis rangeAxis)` Draws the annotation.
`void` `CategoryAnnotation.draw(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, ValueAxis rangeAxis)` Draws the annotation.

Uses of CategoryPlot in org.jfree.chart.plot

Subclasses of CategoryPlot in org.jfree.chart.plot
`class` `CombinedDomainCategoryPlot` A combined category plot where the domain axis is shared.
`class` `CombinedRangeCategoryPlot` A combined category plot where the range axis is shared.

Methods in org.jfree.chart.plot that return CategoryPlot
`CategoryPlot` `CombinedDomainCategoryPlot.findSubplot(PlotRenderingInfo info, java.awt.geom.Point2D source)` Returns the subplot (if any) that contains the (x, y) point (specified in Java2D space).

Methods in org.jfree.chart.plot with parameters of type CategoryPlot
`void` `CombinedRangeCategoryPlot.add(CategoryPlot subplot)` Adds a subplot (with a default 'weight' of 1) and sends a `PlotChangeEvent` to all registered listeners.
`void` `CombinedDomainCategoryPlot.add(CategoryPlot subplot)` Adds a subplot to the combined chart and sends a `PlotChangeEvent` to all registered listeners.
`void` `CombinedRangeCategoryPlot.add(CategoryPlot subplot, int weight)` Adds a subplot and sends a `PlotChangeEvent` to all registered listeners.
`void` `CombinedDomainCategoryPlot.add(CategoryPlot subplot, int weight)` Adds a subplot to the combined chart and sends a `PlotChangeEvent` to all registered listeners.
`void` `CombinedRangeCategoryPlot.remove(CategoryPlot subplot)` Removes a subplot from the combined chart.
`void` `CombinedDomainCategoryPlot.remove(CategoryPlot subplot)` Removes a subplot from the combined chart.

Uses of CategoryPlot in org.jfree.chart.renderer.category

Methods in org.jfree.chart.renderer.category that return CategoryPlot
`CategoryPlot` `CategoryItemRenderer.getPlot()` Returns the plot that the renderer has been assigned to (where `null` indicates that the renderer is not currently assigned to a plot).
`CategoryPlot` `AbstractCategoryItemRenderer.getPlot()` Returns the plot that the renderer has been assigned to (where `null` indicates that the renderer is not currently assigned to a plot).

Methods in org.jfree.chart.renderer.category with parameters of type CategoryPlot
`protected double` `LevelRenderer.calculateBarW0(CategoryPlot plot, PlotOrientation orientation, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, CategoryItemRendererState state, int row, int column)` Calculates the coordinate of the first "side" of a bar.
`protected double` `GroupedStackedBarRenderer.calculateBarW0(CategoryPlot plot, PlotOrientation orientation, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, CategoryItemRendererState state, int row, int column)` Calculates the coordinate of the first "side" of a bar.
`protected double` `BarRenderer.calculateBarW0(CategoryPlot plot, PlotOrientation orientation, java.awt.geom.Rectangle2D dataArea, CategoryAxis domainAxis, CategoryItemRendererState state, int row, int column)` Calculates the coordinate of the first "side" of a bar.
`protected void` `StackedBarRenderer3D.calculateBarWidth(CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)` Calculates the bar width and stores it in the renderer state.
`protected void` `StackedBarRenderer.calculateBarWidth(CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)` Calculates the bar width and stores it in the renderer state.
`protected void` `LayeredBarRenderer.calculateBarWidth(CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)` Calculates the bar width and stores it in the renderer state.
`protected void` `GroupedStackedBarRenderer.calculateBarWidth(CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)` Calculates the bar width and stores it in the renderer state.
`protected void` `BarRenderer.calculateBarWidth(CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)` Calculates the bar width and stores it in the renderer state.
`protected void` `LevelRenderer.calculateItemWidth(CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)` Calculates the bar width and stores it in the renderer state.
`void` `LineRenderer3D.drawBackground(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws the background for the plot.
`void` `CategoryItemRenderer.drawBackground(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws a background for the data area.
`void` `BarRenderer3D.drawBackground(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws the background for the plot.
`void` `AbstractCategoryItemRenderer.drawBackground(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws a background for the data area.
`void` `LineRenderer3D.drawDomainGridline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the domain axis.
`void` `CategoryItemRenderer.drawDomainGridline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the domain axis.
`void` `BarRenderer3D.drawDomainGridline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the domain axis.
`void` `AbstractCategoryItemRenderer.drawDomainGridline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the domain axis.
`void` `CategoryItemRenderer.drawDomainMarker(java.awt.Graphics2D g2, CategoryPlot plot, CategoryAxis axis, CategoryMarker marker, java.awt.geom.Rectangle2D dataArea)` Draws a line (or some other marker) to indicate a particular category on the domain axis.
`void` `AbstractCategoryItemRenderer.drawDomainMarker(java.awt.Graphics2D g2, CategoryPlot plot, CategoryAxis axis, CategoryMarker marker, java.awt.geom.Rectangle2D dataArea)` Draws a marker for the domain axis.
`protected void` `LayeredBarRenderer.drawHorizontalItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column)` Draws the bar for a single (series, category) data item.
`void` `BoxAndWhiskerRenderer.drawHorizontalItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column)` Draws the visual representation of a single data item when the plot has a horizontal orientation.
`protected void` `StatisticalBarRenderer.drawHorizontalItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, StatisticalCategoryDataset dataset, int visibleRow, int row, int column)` Draws an item for a plot with a horizontal orientation.
`protected void` `IntervalBarRenderer.drawInterval(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, IntervalCategoryDataset dataset, int row, int column)` Draws a single interval.
`void` `WaterfallBarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws the bar for a single (series, category) data item.
`void` `StatisticalLineAndShapeRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `StatisticalBarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset data, int row, int column, int pass)` Draws the bar with its standard deviation line range for a single (series, category) data item.

`void`

`StackedBarRenderer3D.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)`
Draws the visual representation of one data item from the chart (in fact, this method does nothing until it reaches the last item for each category, at which point it draws all the items for that category).

`void` `StackedBarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws a stacked bar for a specific item.
`void` `StackedAreaRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `ScatterRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `MinMaxCategoryRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `LineRenderer3D.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `LineAndShapeRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `LevelRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws the bar for a single (series, category) data item.
`void` `LayeredBarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset data, int row, int column, int pass)` Draws the bar for one item in the dataset.
`void` `IntervalBarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws the bar for a single (series, category) data item.
`void` `GroupedStackedBarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws a stacked bar for a specific item.
`void` `GanttRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws the bar for a single (series, category) data item.
`void` `CategoryStepRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `CategoryItemRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws a single data item.
`void` `BoxAndWhiskerRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`void` `BarRenderer3D.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws a 3D bar to represent one data item.
`void` `BarRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draws the bar for a single (series, category) data item.
`void` `AreaRenderer.drawItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)` Draw a single data item.
`protected void` `BarRenderer.drawItemLabel(java.awt.Graphics2D g2, CategoryDataset data, int row, int column, CategoryPlot plot, CategoryItemLabelGenerator generator, java.awt.geom.Rectangle2D bar, boolean negative)` Draws an item label.
`void` `LineRenderer3D.drawOutline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws the outline for the plot.
`void` `CategoryItemRenderer.drawOutline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws an outline for the data area.
`void` `BarRenderer3D.drawOutline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws the outline for the plot.
`void` `AbstractCategoryItemRenderer.drawOutline(java.awt.Graphics2D g2, CategoryPlot plot, java.awt.geom.Rectangle2D dataArea)` Draws an outline for the data area.
`void` `LineRenderer3D.drawRangeGridline(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the range axis.
`void` `CategoryItemRenderer.drawRangeGridline(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the range axis.
`void` `BarRenderer3D.drawRangeGridline(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the range axis.
`void` `AbstractCategoryItemRenderer.drawRangeGridline(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, java.awt.geom.Rectangle2D dataArea, double value)` Draws a grid line against the range axis.
`void` `BarRenderer3D.drawRangeLine(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, java.awt.geom.Rectangle2D dataArea, double value, java.awt.Paint paint, java.awt.Stroke stroke)` Draws a line perpendicular to the range axis.
`void` `AbstractCategoryItemRenderer.drawRangeLine(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, java.awt.geom.Rectangle2D dataArea, double value, java.awt.Paint paint, java.awt.Stroke stroke)` Draws a line perpendicular to the range axis.
`void` `LineRenderer3D.drawRangeMarker(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, Marker marker, java.awt.geom.Rectangle2D dataArea)` Draws a range marker.
`void` `CategoryItemRenderer.drawRangeMarker(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, Marker marker, java.awt.geom.Rectangle2D dataArea)` Draws a line (or some other marker) to indicate a particular value on the range axis.
`void` `BarRenderer3D.drawRangeMarker(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, Marker marker, java.awt.geom.Rectangle2D dataArea)` Draws a range marker.
`void` `AbstractCategoryItemRenderer.drawRangeMarker(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, Marker marker, java.awt.geom.Rectangle2D dataArea)` Draws a marker for the range axis.
`protected void` `StackedBarRenderer3D.drawStackHorizontal(java.util.List values, java.lang.Comparable category, java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset)` Draws a stack of bars for one category, with a horizontal orientation.
`protected void` `StackedBarRenderer3D.drawStackVertical(java.util.List values, java.lang.Comparable category, java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset)` Draws a stack of bars for one category, with a vertical orientation.
`protected void` `GanttRenderer.drawTask(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, GanttCategoryDataset dataset, int row, int column)` Draws a single task.
`protected void` `GanttRenderer.drawTasks(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, GanttCategoryDataset dataset, int row, int column)` Draws the tasks/subtasks for one item.
`protected void` `LayeredBarRenderer.drawVerticalItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column)` Draws the bar for a single (series, category) data item.
`void` `BoxAndWhiskerRenderer.drawVerticalItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column)` Draws the visual representation of a single data item when the plot has a vertical orientation.
`protected void` `StatisticalBarRenderer.drawVerticalItem(java.awt.Graphics2D g2, CategoryItemRendererState state, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, StatisticalCategoryDataset dataset, int visibleRow, int row, int column)` Draws an item for a plot with a vertical orientation.
`protected CategoryAxis` `AbstractCategoryItemRenderer.getDomainAxis(CategoryPlot plot, int index)` Returns a domain axis for a plot.
`protected ValueAxis` `AbstractCategoryItemRenderer.getRangeAxis(CategoryPlot plot, int index)` Returns a range axis for a plot.
`CategoryItemRendererState` `LevelRenderer.initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)` Initialises the renderer and returns a state object that will be passed to subsequent calls to the drawItem method.
`CategoryItemRendererState` `CategoryItemRenderer.initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)` Initialises the renderer.
`CategoryItemRendererState` `BoxAndWhiskerRenderer.initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)` Initialises the renderer.
`CategoryItemRendererState` `BarRenderer3D.initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)` Initialises the renderer and returns a state object that will be passed to subsequent calls to the drawItem method.
`CategoryItemRendererState` `BarRenderer.initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)` Initialises the renderer and returns a state object that will be passed to subsequent calls to the drawItem method.
`CategoryItemRendererState` `AbstractCategoryItemRenderer.initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)` Initialises the renderer and returns a state object that will be used for the remainder of the drawing process for a single chart.
`void` `CategoryItemRenderer.setPlot(CategoryPlot plot)` Sets the plot that the renderer has been assigned to.
`void` `AbstractCategoryItemRenderer.setPlot(CategoryPlot plot)` Sets the plot that the renderer has been assigned to.