All Classes

Class	Description
AbstractAnnotation	An abstract implementation of the Annotation interface, containing a mechanism for registering change listeners.
AbstractCategoryItemLabelGenerator	A base class that can be used to create a label or tooltip generator that can be assigned to a CategoryItemRenderer.
AbstractCategoryItemRenderer	An abstract base class that you can use to implement a new CategoryItemRenderer.
AbstractDataset	An abstract implementation of the Dataset interface, containing a mechanism for registering change listeners.
AbstractDialLayer	A base class that can be used to implement a DialLayer.
AbstractIntervalXYDataset<S extends Comparable<S>>	An base class that you can use to create new implementations of the IntervalXYDataset interface.
AbstractOverlay	A base class for implementing overlays for a ChartPanel.
AbstractPieItemLabelGenerator	A base class used for generating pie chart item labels.
AbstractPieLabelDistributor	A base class for handling the distribution of pie section labels.
AbstractRenderer	Base class providing common services for renderers.
AbstractSeriesDataset<S extends Comparable<S>>	An abstract implementation of the SeriesDataset interface, containing a mechanism for registering change listeners.
AbstractXYAnnotation	The interface that must be supported by annotations that are to be added to an XYPlot.
AbstractXYDataset<S extends Comparable<S>>	An base class that you can use to create new implementations of the XYDataset interface.
AbstractXYItemLabelGenerator	A base class for creating item label generators.
AbstractXYItemRenderer	A base class that can be used to create new XYItemRenderer implementations.
AbstractXYZDataset<S extends Comparable<S>>	An base class that you can use to create new implementations of the XYZDataset interface.
Annotation	The base interface for annotations.
AnnotationChangeEvent	An event that can be forwarded to any AnnotationChangeListener to signal a change to an Annotation.
AnnotationChangeListener	The interface that must be supported by classes that wish to receive notification of changes to an Annotation.
ApplicationFrame	A base class for creating the main frame for simple applications.
ArcDialFrame	A standard frame for the DialPlot class.
AreaRenderer	A category item renderer that draws area charts.
AreaRendererEndType	An enumeration of the 'end types' for an area renderer.
ArrowNeedle	A needle in the shape of an arrow.
AttributedStringUtils	Some utility methods for working with AttributedString objects.
AttrStringUtils	Some AttributedString utilities.
Axis	The base class for all axes in JFreeChart.
AxisChangeEvent	A change event that encapsulates information about a change to an axis.
AxisChangeListener	The interface that must be supported by classes that wish to receive notification of changes to an axis.
AxisCollection	A collection of axes that have been assigned to the TOP, BOTTOM, LEFT or RIGHT of a chart.
AxisEntity	A class that captures information about an Axis belonging to a chart.
AxisLabelLocation	Used to indicate the location of an axis label.
AxisLocation	Used to indicate the location of an axis on a 2D plot, prior to knowing the orientation of the plot.
AxisSpace	A record that contains the space required at each edge of a plot.
AxisState	Instances of this class are used to carry state information for an axis during the drawing process.
BarPainter	The interface for plugin painter for the BarRenderer class.
BarRenderer	A CategoryItemRenderer that draws individual data items as bars.
BoxAndWhiskerCalculator	A utility class that calculates the mean, median, quartiles Q1 and Q3, plus a list of outlier values...all from an arbitrary list of Number objects.
BoxAndWhiskerCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A category dataset that defines various medians, outliers and an average value for each item.
BoxAndWhiskerItem	Represents one data item within a box-and-whisker dataset.
BoxAndWhiskerRenderer	A box-and-whisker renderer.
BoxAndWhiskerToolTipGenerator	An item label generator for plots that use data from a BoxAndWhiskerCategoryDataset.
BoxAndWhiskerXYDataset<S extends Comparable<S>>	An interface that defines data in the form of (x, max, min, average, median) tuples.
BoxAndWhiskerXYToolTipGenerator	An item label generator for plots that use data from a BoxAndWhiskerXYDataset.
BubbleXYItemLabelGenerator	An item label generator defined for use with the XYBubbleRenderer class, or any other class that uses an XYZDataset.
CandlestickRenderer	A renderer that draws candlesticks on an XYPlot (requires a OHLCDataset).
CategoryAnchor	Used to indicate one of three positions within a category: START, MIDDLE and END.
CategoryAnnotation	The interface that must be supported by annotations that are to be added to a CategoryPlot.
CategoryAxis	An axis that displays categories.
CategoryCrosshairState<R extends Comparable<R>,C extends Comparable<C>>	Represents state information for the crosshairs in a CategoryPlot.
CategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	The interface for a dataset with one or more series, and values associated with categories.
CategoryDatasetHandler	A SAX handler for reading a CategoryDataset from an XML file.
CategoryItemEntity<R extends Comparable<R>,C extends Comparable<C>>	A chart entity that represents one item within a category plot.
CategoryItemLabelGenerator	A category item label generator is an object that can be assigned to a CategoryItemRenderer and that assumes responsibility for creating text items to be used as labels for the items in a CategoryPlot.
CategoryItemRenderer	A plug-in object that is used by the CategoryPlot class to display individual data items from a CategoryDataset.
CategoryItemRendererState	An object that retains temporary state information for a CategoryItemRenderer.
CategoryLabelEntity<C extends Comparable<C>>	An entity to represent the labels on a CategoryAxis.
CategoryLabelPosition	The attributes that control the position of the labels for the categories on a CategoryAxis.
CategoryLabelPositions	Records the label positions for a category axis.
CategoryLabelWidthType	Represents the width types for a category label.
CategoryLineAnnotation	A line annotation that can be placed on a CategoryPlot.
CategoryMarker	A marker for a category.
CategoryPlot<R extends Comparable<R>,C extends Comparable<C>>	A general plotting class that uses data from a CategoryDataset and renders each data item using a CategoryItemRenderer.
CategoryPointerAnnotation	An arrow and label that can be placed on a CategoryPlot.
CategoryRangeInfo	An interface that can (optionally) be implemented by a dataset to assist in determining the minimum and maximum y-values.
CategorySeriesHandler	A handler for reading a series for a category dataset.
CategorySeriesLabelGenerator	A generator that creates labels for the series in a CategoryDataset.
CategoryStepRenderer	A "step" renderer similar to XYStepRenderer but that can be used with the CategoryPlot class.
CategoryStepRenderer.State	State information for the renderer.
CategoryTableXYDataset	An implementation variant of the TableXYDataset where every series shares the same x-values (required for generating stacked area charts).
CategoryTextAnnotation	A text annotation that can be placed on a CategoryPlot.
CategoryTick	A tick for a CategoryAxis.
CategoryToolTipGenerator	A category tool tip generator is an object that can be assigned to a CategoryItemRenderer and that assumes responsibility for creating text items to be used as tooltips for the items in a CategoryPlot.
CategoryToPieDataset	A PieDataset implementation that obtains its data from one row or column of a CategoryDataset.
CategoryURLGenerator	A URL generator for items in a CategoryDataset.
CenterTextMode	The mode for the center text on a RingPlot.
ChartChangeEvent	A change event that encapsulates information about a change to a chart.
ChartChangeEventType	Defines tokens used to indicate an event type.
ChartChangeListener	The interface that must be supported by classes that wish to receive notification of chart events.
ChartColor	Class to extend the number of Colors available to the charts.
ChartEditor	A chart editor is typically a JComponent containing a user interface for modifying the properties of a chart.
ChartEditorFactory	A factory for creating new ChartEditor instances.
ChartEditorManager	The central point for obtaining ChartEditor instances for editing charts.
ChartElement	A chart element (used to support a visitor pattern for traversing all the elements in a chart).
ChartElementVisitor	A visitor for a ChartElement.
ChartEntity	A class that captures information about some component of a chart (a bar, line etc).
ChartFactory	A collection of utility methods for creating some standard charts with JFreeChart.
ChartFrame	A frame for displaying a chart.
ChartHints	Special rendering hints that can be used internally by JFreeChart or by specialised implementations of the Graphics2D API.
ChartHints.Key	A key for rendering hints that can be used with JFreeChart (in addition to the regular Java2D rendering hints).
ChartMouseEvent	A mouse event for a chart that is displayed in a ChartPanel.
ChartMouseListener	The interface that must be implemented by classes that wish to receive ChartMouseEvent notifications from a ChartPanel.
ChartPanel	A Swing GUI component for displaying a JFreeChart object.
ChartProgressEvent	An event that contains information about the drawing progress of a chart.
ChartProgressEventType	Chart progress event type.
ChartProgressListener	The interface that must be supported by classes that wish to receive notification of chart progress events.
ChartRenderingInfo	A structure for storing rendering information from one call to the JFreeChart.draw() method.
ChartTheme	A ChartTheme a class that can apply a style or 'theme' to a chart.
ChartTransferable	A class used to represent a chart on the clipboard.
ChartUtils	A collection of utility methods for JFreeChart.
ClusteredXYBarRenderer	An extension of XYBarRenderer that displays bars for different series values at the same x next to each other.
CombinedDomainCategoryPlot	A combined category plot where the domain axis is shared.
CombinedDomainXYPlot<S extends Comparable<S>>	An extension of XYPlot that contains multiple subplots that share a common domain axis.
CombinedRangeCategoryPlot	A combined category plot where the range axis is shared.
CombinedRangeXYPlot<S extends Comparable<S>>	An extension of XYPlot that contains multiple subplots that share a common range axis.
ComparableObjectItem	Represents one (Comparable, Object) data item for use in a ComparableObjectSeries.
ComparableObjectSeries<K extends Comparable<K>>	A (possibly ordered) list of (Comparable, Object) data items.
CompassFormat	A formatter that displays numbers as directions.
CompassPlot	A specialised plot that draws a compass to indicate a direction based on the value from a ValueDataset.
CompositeTitle	A title that contains multiple titles within a BlockContainer.
Crosshair	A Crosshair represents a value on a chart and is usually displayed as a line perpendicular to the x or y-axis (and sometimes including a label that shows the crosshair value as text).
CrosshairLabelGenerator	A label generator for crosshairs.
CrosshairOverlay	An overlay for a ChartPanel that draws crosshairs on a chart.
CrosshairState	Maintains state information about crosshairs on a plot between successive calls to the renderer's draw method.
CSV	A utility class for reading CategoryDataset data from a CSV file.
CustomCategoryURLGenerator	A custom URL generator.
CustomPieURLGenerator	A custom URL generator for pie charts.
CustomXYToolTipGenerator	A tool tip generator that stores custom tooltips.
CustomXYURLGenerator	A custom URL generator.
CyclicNumberAxis	This class extends NumberAxis and handles cycling.
CyclicNumberAxis.CycleBoundTick	A special Number tick that also hold information about the cycle bound mapping for this tick.
CyclicXYItemRenderer	The Cyclic XY item renderer is specially designed to handle cyclic axis.
CyclicXYItemRenderer.OverwriteDataSet	A dataset to hold the interpolated points when drawing new lines.
Dataset	The base interface for data sets.
DatasetChangeEvent	A change event that encapsulates information about a change to a dataset.
DatasetChangeListener	The interface that must be supported by classes that wish to receive notification of changes to a dataset.
DatasetReader	A utility class for reading datasets from XML.
DatasetRenderingOrder	Defines the tokens that indicate the rendering order for datasets in a CategoryPlot or an XYPlot.
DatasetTags	Constants for the tags that identify the elements in the XML files.
DatasetUtils	A collection of useful static methods relating to datasets.
DataUtils	Utility methods for use with some of the data classes (but not the datasets, see DatasetUtils).
DateAxis	The base class for axes that display dates.
DateRange	A range specified in terms of two java.util.Date objects.
DateTick	A tick used by the DateAxis class.
DateTickMarkPosition	Used to indicate the required position of tick marks on a date axis relative to the underlying time period.
DateTickUnit	A tick unit for use by subclasses of DateAxis.
DateTickUnitType	An enumeration of the unit types for a DateTickUnit instance.
DateTitle	A chart title that displays the date.
Day	Represents a single day in the range 1-Jan-1900 to 31-Dec-9999.
DefaultBoxAndWhiskerCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A convenience class that provides a default implementation of the BoxAndWhiskerCategoryDataset interface.
DefaultBoxAndWhiskerXYDataset<S extends Comparable<S>>	A simple implementation of the BoxAndWhiskerXYDataset interface.
DefaultCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A default implementation of the CategoryDataset interface.
DefaultCategoryItemRenderer	A default renderer for the CategoryPlot class.
DefaultChartEditorFactory	A default implementation of the ChartEditorFactory interface.
DefaultDrawingSupplier	A default implementation of the DrawingSupplier interface.
DefaultFlowDataset<K extends Comparable<K>>	A dataset representing flows between source and destination nodes.
DefaultHeatMapDataset	A default implementation of the HeatMapDataset interface.
DefaultHighLowDataset	A simple implementation of the OHLCDataset interface.
DefaultIntervalCategoryDataset	A convenience class that provides a default implementation of the IntervalCategoryDataset interface.
DefaultIntervalXYDataset<S extends Comparable<S>>	A dataset that defines a range (interval) for both the x-values and the y-values.
DefaultKeyedValue<K extends Comparable<K>>	A (key, value) pair.
DefaultKeyedValueDataset	A default implementation of the KeyedValueDataset interface.
DefaultKeyedValues<K extends Comparable<K>>	An ordered list of (key, value) items.
DefaultKeyedValues2D<R extends Comparable<R>,C extends Comparable<C>>	A data structure that stores zero, one or many values, where each value is associated with two keys (a 'row' key and a 'column' key).
DefaultKeyedValues2DDataset<R extends Comparable<R>,C extends Comparable<C>>	A default implementation of the KeyedValues2DDataset interface.
DefaultKeyedValuesDataset<K extends Comparable<K>>	A default implementation of the KeyedValuesDataset interface.
DefaultLogAxisEditor	A panel for editing properties of a LogAxis.
DefaultMultiValueCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A category dataset that defines multiple values for each item.
DefaultOHLCDataset	A simple implementation of the OHLCDataset interface.
DefaultPieDataset<K extends Comparable<K>>	A default implementation of the PieDataset interface.
DefaultPolarItemRenderer	A renderer that can be used with the PolarPlot class.
DefaultPolarPlotEditor	A panel for editing the properties of a PolarPlot.
DefaultSelectionZoomStrategy	This implementation can be extended to override default behavior.
DefaultShadowGenerator	A default implementation of the ShadowGenerator interface, based on code in a blog post by Romain Guy.
DefaultStatisticalCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A convenience class that provides a default implementation of the StatisticalCategoryDataset interface.
DefaultTableXYDataset<S extends Comparable<S>>	An XYDataset where every series shares the same x-values (required for generating stacked area charts).
DefaultValueDataset	A dataset that stores a single value (that is possibly null).
DefaultWindDataset	A default implementation of the WindDataset interface.
DefaultXYDataset<S extends Comparable<S>>	A default implementation of the XYDataset interface that stores data values in arrays of double primitives.
DefaultXYItemRenderer	A default renderer for the XYPlot class.
DefaultXYZDataset<S extends Comparable<S>>	A default implementation of the XYZDataset interface that stores data values in arrays of double primitives.
DeviationRenderer	A specialised subclass of the XYLineAndShapeRenderer that requires an IntervalXYDataset and represents the y-interval by shading an area behind the y-values on the chart.
DeviationRenderer.State	A state object that is passed to each call to drawItem().
DeviationStepRenderer	A specialised subclass of the DeviationRenderer that requires an IntervalXYDataset and represents the y-interval by shading an area behind the y-values on the chart, drawing only horizontal or vertical lines (steps);
DialBackground	A regular dial layer that can be used to draw the background for a dial.
DialCap	A regular dial layer that can be used to draw a cap over the center of the dial (the base of the dial pointer(s)).
DialFrame	A dial frame is the face plate for a dial plot - it is always drawn last.
DialLayer	A dial layer draws itself within a reference frame.
DialLayerChangeEvent	An event that can be forwarded to any DialLayerChangeListener to signal a change to a DialLayer.
DialLayerChangeListener	The interface via which an object is notified of changes to a DialLayer.
DialPlot	A dial plot composed of user-definable layers.
DialPointer	A base class for the pointer in a DialPlot.
DialPointer.Pin	A dial pointer that draws a thin line (like a pin).
DialPointer.Pointer	A dial pointer.
DialScale	A dial scale is a specialised layer that has the ability to convert data values into angles.
DialShape	Used to indicate the background shape for a MeterPlot.
DialTextAnnotation	A text annotation for a DialPlot.
DialValueIndicator	A value indicator for a DialPlot.
DirectionalGradientPaintTransformer	Transforms a GradientPaint to range over the width of a target shape.
DomainInfo	An interface (optional) that can be implemented by a dataset to assist in determining the minimum and maximum values.
DomainOrder	Used to indicate sorting order if any (ascending, descending or none).
Drawable	An interface for an object that can draw itself within an area on a Graphics2D.
DrawingSupplier	A supplier of Paint, Stroke and Shape objects for use by plots and renderers.
DynamicDriveToolTipTagFragmentGenerator	Generates tooltips using the Dynamic Drive DHTML Tip Message library (http://www.dynamicdrive.com).
DynamicTimeSeriesCollection	A dynamic dataset.
EntityCollection	This interface defines the methods used to access an ordered list of ChartEntity objects.
ExportUtils	Utility functions for exporting charts to SVG and PDF format.
ExtendedCategoryAxis	An extended version of the CategoryAxis class that supports sublabels on the axis.
FastScatterPlot	A fast scatter plot.
FixedMillisecond	Wrapper for a java.util.Date object that allows it to be used as a RegularTimePeriod.
FlowDataset<K extends Comparable<K>>	A dataset representing value flows from a set of source nodes to a set of destination nodes.
FlowDatasetUtils	Utility methods related to FlowDataset.
FlowEntity	A chart entity representing the flow between two nodes in a FlowPlot.
FlowKey<K extends Comparable<K>>	A key that identifies a flow within a dataset.
FlowLabelGenerator	A label generator for a flow in a flow dataset.
FlowPlot	A plot for visualising flows defined in a FlowDataset.
FontChooserPanel	A panel for choosing a font from the available system fonts - still a bit of a hack at the moment, but good enough for demonstration applications.
FontDisplayField	A field for displaying a font selection.
Function2D	A function of the form y = f(x).
G2TextMeasurer	A TextMeasurer based on a Graphics2D.
GanttCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	An extension of the IntervalCategoryDataset interface that adds support for multiple sub-intervals.
GanttRenderer	A renderer for simple Gantt charts.
GradientBarPainter	An implementation of the BarPainter interface that uses several gradient fills to enrich the appearance of the bars.
GradientPaintTransformer	The interface for a class that can transform a GradientPaint to fit an arbitrary shape.
GradientPaintTransformType	Represents a type of transform for a GradientPaint.
GradientXYBarPainter	An implementation of the XYBarPainter interface that uses several gradient fills to enrich the appearance of the bars.
GrayPaintScale	A paint scale that returns shades of gray.
GroupedStackedBarRenderer	A renderer that draws stacked bars within groups.
HeatMapDataset	A dataset that represents a rectangular grid of (x, y, z) values.
HeatMapUtils	A utility class for the HeatMapDataset.
HexNumberFormat	A custom number formatter that formats numbers as hexadecimal strings.
HighLowItemLabelGenerator	A standard item label generator for plots that use data from a OHLCDataset.
HighLowRenderer	A renderer that draws high/low/open/close markers on an XYPlot (requires a OHLCDataset).
HistogramBin	A bin for the HistogramDataset class.
HistogramDataset	A dataset that can be used for creating histograms.
HistogramType	Enum to represent the histogram type.
HMSNumberFormat	A custom number formatter that formats numbers (in seconds) as HH:MM:SS.
HorizontalAlignment	An enumeration of the horizontal alignment types (LEFT, RIGHT and CENTER).
Hour	Represents an hour in a specific day.
ImageMapUtils	Collection of utility methods related to producing image maps.
ImageTitle	A chart title that displays an image.
IntervalBarRenderer	A renderer that handles the drawing of bars for a bar plot where each bar has a high and low value.
IntervalCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A category dataset that defines a value range for each series/category combination.
IntervalCategoryItemLabelGenerator	A label generator for plots that use data from an IntervalCategoryDataset.
IntervalCategoryToolTipGenerator	A tooltip generator for plots that use data from an IntervalCategoryDataset.
IntervalMarker	Represents an interval to be highlighted in some way.
IntervalXYDataset<S extends Comparable<S>>	An extension of the XYDataset interface that allows an x-interval and a y-interval to be defined.
IntervalXYDelegate	A delegate that handles the specification or automatic calculation of the interval surrounding the x-values in a dataset.
IntervalXYItemLabelGenerator	An item label generator for datasets that implement the IntervalXYDataset interface.
IntervalXYToolTipGenerator	A tooltip generator for datasets that implement the IntervalXYDataset interface.
IntervalXYZDataset<S extends Comparable<S>>	An extension of the XYZDataset interface that allows a range of data to be defined for any of the X values, the Y values, and the Z values.
ItemHandler	A handler for reading key-value items.
ItemKey	A key that references a single data item in a dataset.
ItemLabelAnchor	An enumeration of the positions that a value label can take, relative to an item in a CategoryPlot.
ItemLabelPosition	The attributes that control the position of the label for each data item on a chart.
JFreeChart	A chart class implemented using the Java 2D APIs.
JFreeChartEntity	A class that captures information about an entire chart.
JSONUtils	A utility class that can read and write data in specific JSON formats.
KeyedObject<K extends Comparable<K>>	A (key, object) pair.
KeyedObjects<K extends Comparable<K>>	A collection of (key, object) pairs.
KeyedObjects2D<R extends Comparable<R>,C extends Comparable<C>>	A data structure that stores zero, one or many objects, where each object is associated with two keys (a 'row' key and a 'column' key).
KeyedValue<K extends Comparable<K>>	A (key, value) pair.
KeyedValueComparator	A utility class that can compare and order two KeyedValue instances and sort them into ascending or descending order by key or by value.
KeyedValueComparatorType	Used to indicate the type of a KeyedValueComparator : 'by key' or 'by value'.
KeyedValueDataset	A dataset containing a single value.
KeyedValues<K extends Comparable<K>>	An ordered list of (key, value) items where the keys are unique and non-null.
KeyedValues2D<R extends Comparable<R>,C extends Comparable<C>>	An extension of the Values2D interface where a unique key is associated with the row and column indices.
KeyedValues2DDataset<R extends Comparable<R>,C extends Comparable<C>>	A dataset containing (key, value) data items.This dataset is equivalent to a CategoryDataset and is included for completeness only.
KeyedValues2DItemKey<R extends Comparable<R>,C extends Comparable<C>>	An object that references one data item in a KeyedValues2D data structure.
KeyedValuesDataset<K extends Comparable<K>>	A dataset containing (key, value) data items.
KeyedValuesItemKey<K extends Comparable<K>>	A reference to an item in a {link KeyedValues} instance.
KeyHandler	A SAX handler for reading a key.
KeyToGroupMap<K extends Comparable<K>,G extends Comparable<G>>	A class that maps keys (instances of Comparable) to groups.
Layer	Used to indicate either the foreground or background layer.
LayeredBarRenderer	A CategoryItemRenderer that represents data using bars which are superimposed.
LCBLayout	Specialised layout manager for a grid of components.
LegendItemEntity<S extends Comparable<S>>	An entity that represents an item (the identifier for a series) within a legend.
LengthAdjustmentType	Represents the three options for adjusting a length: expand, contract, and no change.
LevelRenderer	A CategoryItemRenderer that draws individual data items as horizontal lines, spaced in the same way as bars in a bar chart.
LineAndShapeRenderer	A renderer that draws shapes for each data item, and lines between data items (for use with the CategoryPlot class).
LineFunction2D	A function in the form y = a + bx.
LineNeedle	A needle that is represented by a line.
LogarithmicAxis	A numerical axis that uses a logarithmic scale.
LogAxis	A numerical axis that uses a logarithmic scale.
LogFormat	A number formatter for logarithmic values.
LogTick	A tick from a LogAxis.
LongNeedle	A needle that is represented by a long line.
LookupPaintScale	A paint scale that uses a lookup table to associate paint instances with data value ranges.
Marker	The base class for markers that can be added to plots to highlight a value or range of values.
MarkerAxisBand	A band that can be added to a number axis to display regions.
MarkerChangeEvent	An event that can be forwarded to any MarkerChangeListener to signal a change to a Marker.
MarkerChangeListener	The interface that must be supported by classes that wish to receive notification of changes to a Marker.
MatrixSeries<K extends Comparable<K>>	Represents a dense matrix M[i,j] where each Mij item of the matrix has a value (default is 0).
MatrixSeriesCollection<S extends Comparable<S>>	Represents a collection of MatrixSeries that can be used as a dataset.
MeanAndStandardDeviation	A simple data structure that holds a mean value and a standard deviation value.
MeterInterval	An interval to be highlighted on a MeterPlot.
MeterNeedle	The base class used to represent the needle on a org.jfree.chart.plot.CompassPlot.
MeterPlot	A plot that displays a single value in the form of a needle on a dial.
MiddlePinNeedle	A needle that is drawn as a pin shape.
Millisecond	Represents a millisecond.
MinMaxCategoryRenderer	Renderer for drawing min max plot.
Minute	Represents a minute.
ModuloAxis	An axis that displays numerical values within a fixed range using a modulo calculation.
Month	Represents a single month.
MonthConstants	A set of constants for the month numbers (1 - 12).
MonthDateFormat	A formatter that formats dates to show the initial letter(s) of the month name and, as an option, the year for the first or last month of each year.
MouseWheelHandler	A class that handles mouse wheel events for the ChartPanel class.
MovingAverage	A utility class for calculating moving averages of time series data.
MultiplePiePlot	A plot that displays multiple pie plots using data from a CategoryDataset.
MultipleXYSeriesLabelGenerator	A series label generator for plots that use data from an XYDataset.
MultiValueCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A category dataset that defines multiple values for each item.
NodeEntity	A chart entity representing a node in a FlowPlot.
NodeKey<K extends Comparable<K>>	A key that identifies a node in a FlowDataset.
NormalDistributionFunction2D	A normal distribution function.
NormalizedMatrixSeries	Represents a dense normalized matrix M[i,j] where each Mij item of the matrix has a value (default is 0).
NotOutlierException	An exception that is generated by the Outlier, OutlierList and OutlierListCollection classes.
NumberAxis	An axis for displaying numerical data.
NumberCellRenderer	A table cell renderer that formats numbers with right alignment in each cell.
NumberTick	A numerical tick.
NumberTickUnit	A numerical tick unit.
NumberTickUnitSource	A tick unit source implementation that returns NumberTickUnit instances that are multiples of 1, 2 or 5 times some power of 10.
OHLC	A data record containing open-high-low-close data (immutable).
OHLCDataItem	Represents a single (open-high-low-close) data item in an DefaultOHLCDataset.
OHLCDataset	An interface that defines data in the form of (x, high, low, open, close) tuples.
OHLCItem	An item representing data in the form (time-period, open, high, low, close).
OHLCSeries<S extends Comparable<S>>	A list of (RegularTimePeriod, open, high, low, close) data items.
OHLCSeriesCollection	A collection of OHLCSeries objects.
Outlier	Represents one outlier in the box and whisker plot.
OutlierList	A collection of outliers for a single entity in a box and whisker plot.
OutlierListCollection	A collection of outlier lists for a box and whisker plot.
Overlay	An Overlay is anything that can be drawn over top of a chart to add additional information to the chart.
OverlayChangeEvent	A change event for an Overlay.
OverlayChangeListener	A listener for changes to an Overlay.
OverLIBToolTipTagFragmentGenerator	Generates tooltips using the OverLIB library (http://www.bosrup.com/web/overlib/).
PaintAlpha	This class contains static methods for the manipulation of objects of type Paint
PaintSample	A panel that displays a paint sample.
PaintScale	A source for Paint instances, used by the XYBlockRenderer.
Pannable	An interface that user interface components can make use of to communicate with plots that support panning.
PeriodAxis	An axis that displays a date scale based on a RegularTimePeriod.
PeriodAxisLabelInfo	A record that contains information for one "band" of date labels in a PeriodAxis.
PieDataset<K extends Comparable<K>>	A general purpose dataset where values are associated with keys.
PieDatasetHandler	A SAX handler for reading a PieDataset from an XML file.
PieLabelDistributor	This class distributes the section labels for one side of a pie chart so that they do not overlap.
PieLabelLinkStyle	Used to indicate the style for the lines linking pie sections to their corresponding labels.
PieLabelRecord	A structure that retains information about the label for a section in a pie chart.
PiePlot<K extends Comparable<K>>	A plot that displays data in the form of a pie chart, using data from any class that implements the PieDataset interface.
PiePlotState	A renderer state.
PieSectionEntity<K extends Comparable<K>>	A chart entity that represents one section within a pie plot.
PieSectionLabelGenerator<K extends Comparable<K>>	Interface for a label generator for plots that use data from a PieDataset.
PieToolTipGenerator	A tool tip generator that is used by the org.jfree.chart.plot.PiePlot class.
PieURLGenerator	Interface for a URL generator for plots that use data from a PieDataset.
PinNeedle	A needle that is drawn as a pin shape.
Plot	The base class for all plots in JFreeChart.
PlotChangeEvent	An event that can be forwarded to any PlotChangeListener to signal a change to a plot.
PlotChangeListener	The interface that must be supported by classes that wish to receive notification of changes to a plot.
PlotEntity	A class that captures information about a plot during rendering.
PlotOrientation	Used to indicate the orientation (horizontal or vertical) of a 2D plot.
PlotRenderingInfo	Stores information about the dimensions of a plot and its subplots.
PlotState	Records information about the state of a plot during the drawing process.
PlumNeedle	A needle for use with the org.jfree.chart.plot.CompassPlot class.
PointerNeedle	A needle in the shape of a pointer, for use with the org.jfree.chart.plot.CompassPlot class.
PolarAxisLocation	Used to indicate the location of an axis on a PolarPlot.
PolarChartPanel	PolarChartPanel is the top level object for using the PolarPlot.
PolarItemRenderer	The interface for a renderer that can be used by the PolarPlot class.
PolarPlot	Plots data that is in (theta, radius) pairs where theta equal to zero is due north and increases clockwise.
PolynomialFunction2D	A function in the form y = a0 + a1 * x + a2 * x^2 + ... + an * x^n.
PowerFunction2D	A function of the form y = a * x ^ b.
PublicCloneable	An interface that exposes the clone() method.
Quarter	Defines a quarter (in a given year).
QuarterDateFormat	A formatter that formats dates to show the year and quarter (for example, '2004 IV' for the last quarter of 2004.
Range	Represents an immutable range of values.
RangeInfo	An interface (optional) that can be implemented by a dataset to assist in determining the minimum and maximum values.
RangeType	Used to indicate the type of range to display on an axis (full, positive or negative).
RectangleAlignment	Used to indicate how to align one rectangle with another rectangle.
RectangleAnchor	Used to indicate an anchor point for a rectangle.
RectangleEdge	Used to indicate the edge of a rectangle.
RectangleInsets	Represents the insets for a rectangle, specified in absolute or relative terms.
Regression	A utility class for fitting regression curves to data.
RegularTimePeriod	An abstract class representing a unit of time.
RelativeDateFormat	A formatter that formats dates to show the elapsed time relative to some base date.
RendererChangeEvent	An event that can be forwarded to any RendererChangeListener to signal a change to a renderer.
RendererChangeListener	The interface that must be supported by classes that wish to receive notification of changes to a renderer.
RendererState	Represents the current state of a renderer.
RendererUtils	Utility methods related to the rendering process.
RingPlot	A customised pie plot that leaves a hole in the middle.
RootHandler	A SAX handler that delegates work to sub-handlers.
Rotation	Represents a direction of rotation (CLOCKWISE or ANTICLOCKWISE).
SamplingXYLineRenderer	A renderer that draws line charts.
SamplingXYLineRenderer.State	Records the state for the renderer.
ScatterRenderer	A renderer that handles the multiple values from a MultiValueCategoryDataset by plotting a shape for each value for each given item in the dataset.
Second	Represents a second in a particular day.
SelectionZoomStrategy	A strategy for zooming plots on the chart panel by selecting a smaller region on the initial screen.
SerialDate	An abstract class that defines our requirements for manipulating dates, without tying down a particular implementation.
Series<K extends Comparable<K>>	Base class representing a data series.
SeriesChangeEvent	An event with details of a change to a series.
SeriesChangeListener	Methods for receiving notification of changes to a data series.
SeriesDataset<S extends Comparable<S>>	The interface for a dataset consisting of one or many series of data.
SeriesException	A general purpose exception class for data series.
SeriesRenderingOrder	Defines the tokens that indicate the rendering order for series in a XYPlot.
ShadowGenerator	An interface that defines the API for a shadow generator.
ShipNeedle	A needle in the shape of a ship, for use with the org.jfree.chart.plot.CompassPlot class.
ShortTextTitle	A text title that is only displayed if the entire text will be visible without line wrapping.
SimpleHistogramBin	A bin for the SimpleHistogramDataset.
SimpleHistogramDataset<K extends Comparable<K>>	A dataset used for creating simple histograms with custom defined bins.
SimpleTimePeriod	An arbitrary period of time, measured to millisecond precision using java.util.Date.
SlidingCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A CategoryDataset implementation that presents a subset of the categories in an underlying dataset.
SlidingGanttCategoryDataset	A GanttCategoryDataset implementation that presents a subset of the categories in an underlying dataset.
SortOrder	Defines tokens used to indicate sorting order (ascending or descending).
SpiderWebPlot	A plot that displays data from a CategoryDataset in the form of a "spider web".
SpreadsheetDate	Represents a date using an integer, in a similar fashion to the implementation in Microsoft Excel.
StackedAreaRenderer	A renderer that draws stacked area charts for a CategoryPlot.
StackedBarRenderer	A stacked bar renderer for use with the CategoryPlot class.
StackedXYAreaRenderer	A stacked area renderer for the XYPlot class.
StackedXYAreaRenderer2	A stacked area renderer for the XYPlot class.
StackedXYBarRenderer	A bar renderer that displays the series items stacked.
StandardBarPainter	An implementation of the BarPainter interface that preserves the behaviour of bar painting that existed prior to the introduction of the BarPainter interface.
StandardCategoryItemLabelGenerator	A standard label generator that can be used with a CategoryItemRenderer.
StandardCategorySeriesLabelGenerator	A standard series label generator for plots that use data from a CategoryDataset.
StandardCategoryToolTipGenerator	A standard tool tip generator that can be used with a CategoryItemRenderer.
StandardCategoryURLGenerator	A URL generator that can be assigned to a CategoryItemRenderer.
StandardChartTheme	A default implementation of the ChartTheme interface.
StandardCrosshairLabelGenerator	A default label generator.
StandardDialFrame	A simple circular frame for the DialPlot class.
StandardDialRange	A layer that draws a range highlight on a dial plot.
StandardDialScale	A scale for a DialPlot.
StandardEntityCollection	A standard implementation of the EntityCollection interface.
StandardFlowLabelGenerator	Standard flow label generator.
StandardGradientPaintTransformer	Transforms a GradientPaint to range over the width of a target shape.
StandardPieSectionLabelGenerator	A standard item label generator for plots that use data from a PieDataset.
StandardPieToolTipGenerator	A standard item label generator for plots that use data from a PieDataset.
StandardPieURLGenerator	A URL generator for pie charts.
StandardTickUnitSource	A source that can used by the NumberAxis class to obtain a suitable TickUnit.
StandardToolTipTagFragmentGenerator	Generates tooltips using the HTML title attribute for image map area tags.
StandardURLTagFragmentGenerator	Generates URLs using the HTML href attribute for image map area tags.
StandardXYBarPainter	An implementation of the XYBarPainter interface that preserves the behaviour of bar painting that existed prior to the introduction of the XYBarPainter interface.
StandardXYItemLabelGenerator	A standard item label generator for plots that use data from an XYDataset.
StandardXYItemRenderer	Standard item renderer for an XYPlot.
StandardXYItemRenderer.State	Records the state for the renderer.
StandardXYSeriesLabelGenerator	A standard series label generator for plots that use data from an XYDataset.
StandardXYToolTipGenerator	A standard tool tip generator for use with an XYItemRenderer.
StandardXYURLGenerator	A URL generator.
StandardXYZToolTipGenerator	A standard item label generator for use with XYZDataset data.
StandardXYZURLGenerator	A URL generator.
StatisticalBarRenderer	A renderer that handles the drawing a bar plot where each bar has a mean value and a standard deviation line.
StatisticalCategoryDataset<R extends Comparable<R>,C extends Comparable<C>>	A category dataset that defines a mean and standard deviation value for each item.
StatisticalLineAndShapeRenderer	A renderer that draws shapes for each data item, and lines between data items.
Statistics	A utility class that provides some common statistical functions.
StringUtils	String utilities.
StrokeChooserPanel	A component for choosing a stroke from a list of available strokes.
StrokeSample	A panel that displays a stroke sample.
SubCategoryAxis	A specialised category axis that can display sub-categories.
SymbolAxis	A standard linear value axis that replaces integer values with symbols.
SymbolicXYItemLabelGenerator	A standard item label generator for plots that use data from an XYDataset.
TableOrder	Used to indicate the processing order for a table (by row or by column).
TableXYDataset<S extends Comparable<S>>	A dataset containing one or more data series containing (x, y) data items, where all series in the dataset share the same set of x-values.
Task	A simple representation of a task.
TaskSeries<K extends Comparable<K>>	A series that contains zero, one or many Task objects.
TaskSeriesCollection<R extends Comparable<R>,C extends Comparable<C>>	A collection of TaskSeries objects.
TextAnchor	Used to indicate the position of an anchor point for a text string.
TextAnnotation	A base class for text annotations.
TextBlock	A list of TextLine objects that form a block of text.
TextBlockAnchor	Used to indicate the position of an anchor point for a text block.
TextBox	A box containing a text block.
TextFragment	A text item, with an associated font, that fits on a single line (see TextLine).
TextLine	A sequence of TextFragment objects that together form a line of text.
TextMeasurer	An object that can measure text.
TextTitle	A chart title that displays a text string with automatic wrapping as required.
TextUtils	Some utility methods for working with text in Java2D.
ThermometerPlot	A plot that displays a single value (from a ValueDataset) in a thermometer type display.
Tick	The base class used to represent labeled ticks along an axis.
TickLabelEntity	A chart entity representing a tick label.
TickType	Used to indicate the tick type (MAJOR or MINOR).
TickUnit	Base class representing a tick unit.
TickUnits	A collection of tick units, used by the DateAxis and NumberAxis classes.
TickUnitSource	An interface used by the DateAxis and NumberAxis classes to obtain a suitable TickUnit.
Timeline	An interface that defines the contract for a Timeline.
TimePeriod	A period of time measured to millisecond precision using two instances of java.util.Date.
TimePeriodAnchor	Used to indicate one of three positions in a time period: START, MIDDLE and END.
TimePeriodFormatException	An exception that indicates an invalid format in a string representing a time period.
TimePeriodValue	Represents a time period and an associated value.
TimePeriodValues<S extends Comparable<S>>	A structure containing zero, one or many TimePeriodValue instances.
TimePeriodValuesCollection	A collection of TimePeriodValues objects.
TimeSeries<S extends Comparable<S>>	Represents a sequence of zero or more data items in the form (period, value) where 'period' is some instance of a subclass of RegularTimePeriod.
TimeSeriesCollection<S extends Comparable<S>>	A collection of time series objects.
TimeSeriesDataItem	Represents one data item in a time series.
TimeSeriesTableModel	Wrapper around a time series to convert it to a table model for use in a JTable.
TimeSeriesURLGenerator	A URL generator for time series charts.
TimeTableXYDataset	A dataset for regular time periods that implements the TableXYDataset interface.
Title	The base class for all chart titles.
TitleChangeEvent	A change event that encapsulates information about a change to a chart title.
TitleChangeListener	The interface that must be supported by classes that wish to receive notification of changes to a chart title.
TitleEntity	A class that captures information about a Title of a chart during rendering.
ToolTipTagFragmentGenerator	Interface for generating the tooltip fragment of an HTML image map area tag.
UIUtils	A collection of utility methods relating to user interfaces.
UnitType	Used to indicate absolute or relative units.
UnknownKeyException	An exception that indicates an unknown key value.
URLTagFragmentGenerator	Interface for generating the URL fragment of an HTML image map area tag.
Value	A general purpose interface for accessing a value.
ValueAxis	The base class for axes that display value data, where values are measured using the double primitive.
ValueAxisPlot	An interface that is implemented by plots that use a ValueAxis, providing a standard method to find the current data range.
ValueDataset	An interface for a dataset that returns a single value.
ValueHandler	A handler for reading a 'Value' element.
ValueMarker	A marker that represents a single value.
Values	An interface through which (single-dimension) data values can be accessed.
Values2D	A general purpose interface that can be used to access a table of values.
ValueTick	A value tick.
Vector	A vector.
VectorDataItem	A data item representing data in the form (x, y, deltaX, deltaY), intended for use by the VectorSeries class.
VectorRenderer	A renderer that represents data from an VectorXYDataset by drawing a line with an arrow at each (x, y) point.
VectorSeries<S extends Comparable<S>>	A list of (x,y, deltaX, deltaY) data items.
VectorSeriesCollection<S extends Comparable<S>>	A collection of VectorSeries objects.
VectorXYDataset<S extends Comparable<S>>	An extension of the XYDataset interface that allows a vector to be defined at a specific (x, y) location.
VerticalAlignment	An enumeration of the vertical alignment types (TOP, BOTTOM and CENTER).
WaferMapDataset	A dataset that can be used with the WaferMapPlot class.
WaferMapPlot	A wafer map plot.
WaferMapRenderer	A renderer for wafer map plots.
WaterfallBarRenderer	A renderer that handles the drawing of waterfall bar charts, for use with the CategoryPlot class.
Week	A calendar week.
WindDataset<S extends Comparable<S>>	Interface for a dataset that supplies wind intensity and direction values observed at various points in time.
WindItemRenderer	A specialised renderer for displaying wind intensity/direction data.
WindNeedle	A needle that indicates wind direction, for use with the org.jfree.chart.plot.CompassPlot class.
XIntervalDataItem	An item representing data in the form (x, x-low, x-high, y).
XIntervalSeries<S extends Comparable<S>>	A list of (x, x-low, x-high, y) data items.
XIntervalSeriesCollection<S extends Comparable<S>>	A collection of XIntervalSeries objects.
XisSymbolic	Represent a data set where X is a symbolic values.
XYAnnotation	The interface that must be supported by annotations that are to be added to an XYPlot.
XYAnnotationBoundsInfo	An interface that supplies information about the bounds of the annotation.
XYAnnotationEntity	A chart entity that represents an annotation on an XYPlot.
XYAreaRenderer	Area item renderer for an XYPlot.
XYAreaRenderer2	Area item renderer for an XYPlot.
XYBarDataset<S extends Comparable<S>>	A dataset wrapper class that converts a standard XYDataset into an IntervalXYDataset suitable for use in creating XY bar charts.
XYBarPainter	The interface for plugin painter for the XYBarRenderer class.
XYBarRenderer	A renderer that draws bars on an XYPlot (requires an IntervalXYDataset).
XYBezierRenderer	A renderer that connects data points with Bezier cubic curves and/or draws shapes at each data point.
XYBezierRenderer.FillType	An enumeration of the fill types for the renderer.
XYBezierRenderer.XYBezierState	Represents state information that applies to a single rendering of a chart.
XYBlockRenderer	A renderer that represents data from an XYZDataset by drawing a color block at each (x, y) point, where the color is a function of the z-value from the dataset.
XYBoxAndWhiskerRenderer	A renderer that draws box-and-whisker items on an XYPlot.
XYBoxAnnotation	A box annotation that can be placed on an XYPlot.
XYBubbleRenderer	A renderer that draws a circle at each data point with a diameter that is determined by the z-value in the dataset (the renderer requires the dataset to be an instance of XYZDataset.
XYCoordinate	Represents an (x, y) coordinate.
XYCoordinateType	Represents several possible interpretations for an (x, y) coordinate.
XYCrosshairState	Crosshair state information for the XYPlot and XYItemRenderer classes.
XYDataImageAnnotation	An annotation that allows an image to be placed within a rectangle specified in data coordinates on an XYPlot.
XYDataItem	Represents one (x, y) data item for an XYSeries.
XYDataset<S extends Comparable<S>>	An interface through which data in the form of (x, y) items can be accessed.
XYDatasetTableModel	A READ-ONLY wrapper around a TableXYDataset to convert it to a table model for use in a JTable.
XYDifferenceRenderer	A renderer for an XYPlot that highlights the differences between two series.
XYDomainInfo<S extends Comparable<S>>	An interface that can (optionally) be implemented by a dataset to assist in determining the minimum and maximum x-values in the dataset.
XYDotRenderer	A renderer that draws a small dot at each data point for an XYPlot.
XYDrawableAnnotation	A general annotation that can be placed on an XYPlot.
XYErrorRenderer	A line and shape renderer that can also display x and/or y-error values.
XYImageAnnotation	An annotation that allows an image to be placed at some location on an XYPlot.
XYInterval	An xy-interval.
XYIntervalDataItem	An item representing data in the form (x, x-low, x-high, y, y-low, y-high).
XYIntervalSeries<S extends Comparable<S>>	A list of (x, x-low, x-high, y, y-low, y-high) data items.
XYIntervalSeriesCollection<S extends Comparable<S>>	A collection of XYIntervalSeries objects.
XYItemEntity	A chart entity that represents one item within an XYPlot.
XYItemKey<S extends Comparable<S>>	An object that references one data item in an XYZDataset.
XYItemLabelGenerator	Interface for a label generator for plots that use data from an XYDataset.
XYItemRenderer	Interface for rendering the visual representation of a single (x, y) item on an XYPlot.
XYItemRendererState	The state for an XYItemRenderer.
XYLineAndShapeRenderer	A renderer that connects data points with lines and/or draws shapes at each data point.
XYLineAndShapeRenderer.State	Records the state for the renderer.
XYLineAnnotation	A simple line annotation that can be placed on an XYPlot.
XYPlot<S extends Comparable<S>>	A general class for plotting data in the form of (x, y) pairs.
XYPointerAnnotation	An arrow and label that can be placed on an XYPlot.
XYPolygonAnnotation	A polygon annotation that can be placed on an XYPlot.
XYRangeInfo	An interface that can (optionally) be implemented by a dataset to assist in determining the minimum and maximum y-values.
XYSeries<K extends Comparable<K>>	Represents a sequence of zero or more data items in the form (x, y).
XYSeriesCollection<S extends Comparable<S>>	Represents a collection of XYSeries objects that can be used as a dataset.
XYSeriesLabelGenerator	A generator that creates labels for the series in an XYDataset.
XYShapeAnnotation	A simple Shape annotation that can be placed on an XYPlot.
XYShapeRenderer	A renderer that draws shapes at (x, y) coordinates and, if the dataset is an instance of XYZDataset, fills the shapes with a paint that is based on the z-value (the paint is obtained from a lookup table).
XYSplineRenderer	A renderer that connects data points with natural cubic splines and/or draws shapes at each data point.
XYSplineRenderer.FillType	An enumeration of the fill types for the renderer.
XYSplineRenderer.XYSplineState	Represents state information that applies to a single rendering of a chart.
XYStepAreaRenderer	A step chart renderer that fills the area between the step and the x-axis.
XYStepRenderer	Line/Step item renderer for an XYPlot.
XYTaskDataset	A dataset implementation that wraps a TaskSeriesCollection and presents it as an IntervalXYDataset, allowing a set of tasks to be displayed using an XYBarRenderer (and usually a SymbolAxis).
XYTextAnnotation	A text annotation that can be placed at a particular (x, y) location on an XYPlot.
XYTitleAnnotation	An annotation that allows any Title to be placed at a location on an XYPlot.
XYToolTipGenerator	Interface for a tooltip generator for plots that use data from an XYDataset.
XYURLGenerator	Interface for a URL generator for plots that uses data from an XYDataset.
XYZDataset<S extends Comparable<S>>	The interface through which JFreeChart obtains data in the form of (x, y, z) items - used for XY and XYZ plots.
XYZToolTipGenerator	Interface for a tooltip generator for plots that use data from an XYZDataset.
XYZURLGenerator	Interface for a URL generator for plots that uses data from an XYZDataset.
Year	Represents a year in the range -9999 to 9999.
YInterval	A y-interval.
YIntervalDataItem	An item representing data in the form (x, y, y-low, y-high).
YIntervalRenderer	A renderer that draws a line connecting the start and end Y values for an XYPlot.
YIntervalSeries<S extends Comparable<S>>	A list of (x, y, y-low, y-high) data items.
YIntervalSeriesCollection<S extends Comparable<S>>	A collection of YIntervalSeries objects.
YisSymbolic	Represent a data set where Y is a symbolic values.
YWithXInterval	A y-value plus the bounds for the related x-interval.
Zoomable	A plot that is zoomable must implement this interface to provide a mechanism for user interface components to control the zooming.