Package org.jfree.chart.renderer.xy

Class StandardXYItemRenderer

java.lang.Object

org.jfree.chart.renderer.AbstractRenderer

org.jfree.chart.renderer.xy.AbstractXYItemRenderer

org.jfree.chart.renderer.xy.StandardXYItemRenderer

All Implemented Interfaces:

Serializable, Cloneable, EventListener, AnnotationChangeListener, LegendItemSource, XYItemRenderer, PublicCloneable

Direct Known Subclasses:

CyclicXYItemRenderer

public class StandardXYItemRenderer
extends AbstractXYItemRenderer
implements XYItemRenderer, Cloneable, PublicCloneable, Serializable

Standard item renderer for an XYPlot. This class can draw (a) shapes at each point, or (b) lines between points, or (c) both shapes and lines.

This renderer has been retained for historical reasons and, in general, you should use the XYLineAndShapeRenderer class instead.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StandardXYItemRenderer.State	Records the state for the renderer.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DISCONTINUOUS	Constant for the type of rendering (discontinuous lines).
static final int	DISCONTINUOUS_LINES	Constant for the type of rendering (discontinuous lines).
static final int	IMAGES	Constant for the type of rendering (images only).
static final int	LINES	Constant for the type of rendering (lines only).
static final int	SHAPES	Constant for the type of rendering (shapes only).
static final int	SHAPES_AND_LINES	Constant for the type of rendering (shapes and lines).

Fields inherited from class org.jfree.chart.renderer.AbstractRenderer

DEFAULT_ITEM_LABEL_INSETS, DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, DEFAULT_PAINT, DEFAULT_SHAPE, DEFAULT_STROKE, DEFAULT_VALUE_LABEL_FONT, DEFAULT_VALUE_LABEL_PAINT, ZERO

Constructor Summary

Constructors

Constructor	Description
StandardXYItemRenderer()	Constructs a new renderer.
StandardXYItemRenderer(int type)	Constructs a new renderer.
StandardXYItemRenderer(int type, XYToolTipGenerator toolTipGenerator)	Constructs a new renderer.
StandardXYItemRenderer(int type, XYToolTipGenerator toolTipGenerator, XYURLGenerator urlGenerator)	Constructs a new renderer.

Method Summary

Modifier and Type	Method	Description
Object	clone()	Returns a clone of the renderer.
void	drawItem(Graphics2D g2, XYItemRendererState state, Rectangle2D dataArea, PlotRenderingInfo info, XYPlot plot, ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset, int series, int item, CrosshairState crosshairState, int pass)	Draws the visual representation of a single data item.
boolean	equals(Object obj)	Tests this renderer for equality with another object.
boolean	getBaseShapesFilled()	Returns the base 'shape filled' attribute.
boolean	getBaseShapesVisible()	Returns true if shapes are being plotted by the renderer.
boolean	getDrawSeriesLineAsPath()	Returns a flag that controls whether or not each series is drawn as a single path.
double	getGapThreshold()	Returns the gap threshold for discontinuous lines.
UnitType	getGapThresholdType()	Returns the gap threshold type (relative or absolute).
protected Image	getImage(Plot plot, int series, int item, double x, double y)	Returns the image used to draw a single data item.
protected Point	getImageHotspot(Plot plot, int series, int item, double x, double y, Image image)	Returns the hotspot of the image used to draw a single data item.
boolean	getItemShapeFilled(int series, int item)	Returns the flag used to control whether or not the shape for an item is filled.
LegendItem	getLegendItem(int datasetIndex, int series)	Returns a legend item for a series.
Shape	getLegendLine()	Returns the shape used to represent a line in the legend.
boolean	getPlotDiscontinuous()	Returns a flag that controls whether or not the renderer shows discontinuous lines.
boolean	getPlotImages()	Returns true if images are being plotted by the renderer.
boolean	getPlotLines()	Returns true if lines are being plotted by the renderer.
Boolean	getSeriesShapesFilled(int series)	Returns the flag used to control whether or not the shapes for a series are filled.
XYItemRendererState	initialise(Graphics2D g2, Rectangle2D dataArea, XYPlot plot, XYDataset data, PlotRenderingInfo info)	Initialises the renderer.
void	setBaseShapesFilled(boolean flag)	Sets the base 'shapes filled' flag and sends a RendererChangeEvent to all registered listeners.
void	setBaseShapesVisible(boolean flag)	Sets the flag that controls whether or not a shape is plotted at each data point.
void	setDrawSeriesLineAsPath(boolean flag)	Sets the flag that controls whether or not each series is drawn as a single path.
void	setGapThreshold(double t)	Sets the gap threshold for discontinuous lines and sends a RendererChangeEvent to all registered listeners.
void	setGapThresholdType(UnitType thresholdType)	Sets the gap threshold type and sends a RendererChangeEvent to all registered listeners.
void	setLegendLine(Shape line)	Sets the shape used as a line in each legend item and sends a RendererChangeEvent to all registered listeners.
void	setPlotDiscontinuous(boolean flag)	Sets the flag that controls whether or not the renderer shows discontinuous lines, and sends a RendererChangeEvent to all registered listeners.
void	setPlotImages(boolean flag)	Sets the flag that controls whether or not an image is drawn at each data point and sends a RendererChangeEvent to all registered listeners.
void	setPlotLines(boolean flag)	Sets the flag that controls whether or not a line is plotted between each data point and sends a RendererChangeEvent to all registered listeners.
void	setSeriesShapesFilled(int series, Boolean flag)	Sets the 'shapes filled' flag for a series and sends a RendererChangeEvent to all registered listeners.

Methods inherited from class org.jfree.chart.renderer.xy.AbstractXYItemRenderer

addAnnotation, addAnnotation, addEntity, annotationChanged, beginElementGroup, calculateDomainMarkerTextAnchorPoint, drawAnnotations, drawDomainLine, drawDomainMarker, drawItemLabel, drawRangeLine, drawRangeMarker, fillDomainGridBand, fillRangeGridBand, findDomainBounds, findDomainBounds, findRangeBounds, findRangeBounds, getAnnotations, getDefaultItemLabelGenerator, getDefaultToolTipGenerator, getDrawingSupplier, getItemLabelGenerator, getLegendItemLabelGenerator, getLegendItems, getLegendItemToolTipGenerator, getLegendItemURLGenerator, getPassCount, getPlot, getSeriesItemLabelGenerator, getSeriesToolTipGenerator, getToolTipGenerator, getURLGenerator, hashCode, lineTo, moveTo, removeAnnotation, removeAnnotations, setDefaultItemLabelGenerator, setDefaultToolTipGenerator, setLegendItemLabelGenerator, setLegendItemToolTipGenerator, setLegendItemURLGenerator, setPlot, setSeriesItemLabelGenerator, setSeriesToolTipGenerator, setURLGenerator, updateCrosshairValues

Methods inherited from class org.jfree.chart.renderer.AbstractRenderer

addChangeListener, beginElementGroup, calculateLabelAnchorPoint, clearSeriesPaints, clearSeriesStrokes, endElementGroup, fireChangeEvent, getAutoPopulateSeriesFillPaint, getAutoPopulateSeriesOutlinePaint, getAutoPopulateSeriesOutlineStroke, getAutoPopulateSeriesPaint, getAutoPopulateSeriesShape, getAutoPopulateSeriesStroke, getDataBoundsIncludesVisibleSeriesOnly, getDefaultCreateEntities, getDefaultEntityRadius, getDefaultFillPaint, getDefaultItemLabelFont, getDefaultItemLabelPaint, getDefaultItemLabelsVisible, getDefaultLegendShape, getDefaultLegendTextFont, getDefaultLegendTextPaint, getDefaultNegativeItemLabelPosition, getDefaultOutlinePaint, getDefaultOutlineStroke, getDefaultPaint, getDefaultPositiveItemLabelPosition, getDefaultSeriesVisible, getDefaultSeriesVisibleInLegend, getDefaultShape, getDefaultStroke, getItemCreateEntity, getItemFillPaint, getItemLabelAnchorOffset, getItemLabelFont, getItemLabelInsets, getItemLabelPaint, getItemOutlinePaint, getItemOutlineStroke, getItemPaint, getItemShape, getItemStroke, getItemVisible, getLegendShape, getLegendTextFont, getLegendTextPaint, getNegativeItemLabelPosition, getPositiveItemLabelPosition, getSeriesCreateEntities, getSeriesFillPaint, getSeriesItemLabelFont, getSeriesItemLabelPaint, getSeriesNegativeItemLabelPosition, getSeriesOutlinePaint, getSeriesOutlineStroke, getSeriesPaint, getSeriesPositiveItemLabelPosition, getSeriesShape, getSeriesStroke, getSeriesVisible, getSeriesVisibleInLegend, getTreatLegendShapeAsLine, hasListener, isComputeItemLabelContrastColor, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, lookupLegendShape, lookupLegendTextFont, lookupLegendTextPaint, lookupSeriesFillPaint, lookupSeriesOutlinePaint, lookupSeriesOutlineStroke, lookupSeriesPaint, lookupSeriesShape, lookupSeriesStroke, notifyListeners, removeChangeListener, setAutoPopulateSeriesFillPaint, setAutoPopulateSeriesOutlinePaint, setAutoPopulateSeriesOutlineStroke, setAutoPopulateSeriesPaint, setAutoPopulateSeriesShape, setAutoPopulateSeriesStroke, setComputeItemLabelContrastColor, setDataBoundsIncludesVisibleSeriesOnly, setDefaultCreateEntities, setDefaultCreateEntities, setDefaultEntityRadius, setDefaultFillPaint, setDefaultFillPaint, setDefaultItemLabelFont, setDefaultItemLabelFont, setDefaultItemLabelPaint, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultLegendShape, setDefaultLegendTextFont, setDefaultLegendTextPaint, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setItemLabelAnchorOffset, setItemLabelInsets, setLegendShape, setLegendTextFont, setLegendTextPaint, setSeriesCreateEntities, setSeriesCreateEntities, setSeriesFillPaint, setSeriesFillPaint, setSeriesItemLabelFont, setSeriesItemLabelFont, setSeriesItemLabelPaint, setSeriesItemLabelPaint, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesNegativeItemLabelPosition, setSeriesNegativeItemLabelPosition, setSeriesOutlinePaint, setSeriesOutlinePaint, setSeriesOutlineStroke, setSeriesOutlineStroke, setSeriesPaint, setSeriesPaint, setSeriesPositiveItemLabelPosition, setSeriesPositiveItemLabelPosition, setSeriesShape, setSeriesShape, setSeriesStroke, setSeriesStroke, setSeriesVisible, setSeriesVisible, setSeriesVisibleInLegend, setSeriesVisibleInLegend, setTreatLegendShapeAsLine

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jfree.chart.LegendItemSource

getLegendItems

Methods inherited from interface org.jfree.chart.renderer.xy.XYItemRenderer

addAnnotation, addAnnotation, addChangeListener, drawAnnotations, drawDomainLine, drawDomainMarker, drawRangeLine, drawRangeMarker, fillDomainGridBand, fillRangeGridBand, findDomainBounds, findRangeBounds, getDefaultCreateEntities, getDefaultFillPaint, getDefaultItemLabelFont, getDefaultItemLabelGenerator, getDefaultItemLabelPaint, getDefaultItemLabelsVisible, getDefaultNegativeItemLabelPosition, getDefaultOutlinePaint, getDefaultOutlineStroke, getDefaultPaint, getDefaultPositiveItemLabelPosition, getDefaultSeriesVisible, getDefaultSeriesVisibleInLegend, getDefaultShape, getDefaultStroke, getDefaultToolTipGenerator, getItemCreateEntity, getItemFillPaint, getItemLabelFont, getItemLabelGenerator, getItemLabelPaint, getItemOutlinePaint, getItemOutlineStroke, getItemPaint, getItemShape, getItemStroke, getItemVisible, getLegendItemLabelGenerator, getNegativeItemLabelPosition, getPassCount, getPlot, getPositiveItemLabelPosition, getSeriesCreateEntities, getSeriesFillPaint, getSeriesItemLabelFont, getSeriesItemLabelGenerator, getSeriesItemLabelPaint, getSeriesNegativeItemLabelPosition, getSeriesOutlinePaint, getSeriesOutlineStroke, getSeriesPaint, getSeriesPositiveItemLabelPosition, getSeriesShape, getSeriesStroke, getSeriesToolTipGenerator, getSeriesVisible, getSeriesVisibleInLegend, getToolTipGenerator, getURLGenerator, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, removeAnnotation, removeAnnotations, removeChangeListener, setDefaultCreateEntities, setDefaultCreateEntities, setDefaultFillPaint, setDefaultFillPaint, setDefaultItemLabelFont, setDefaultItemLabelGenerator, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setDefaultToolTipGenerator, setLegendItemLabelGenerator, setPlot, setSeriesCreateEntities, setSeriesCreateEntities, setSeriesFillPaint, setSeriesFillPaint, setSeriesItemLabelFont, setSeriesItemLabelGenerator, setSeriesItemLabelPaint, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesNegativeItemLabelPosition, setSeriesNegativeItemLabelPosition, setSeriesOutlinePaint, setSeriesOutlinePaint, setSeriesOutlineStroke, setSeriesOutlineStroke, setSeriesPaint, setSeriesPaint, setSeriesPositiveItemLabelPosition, setSeriesPositiveItemLabelPosition, setSeriesShape, setSeriesShape, setSeriesStroke, setSeriesStroke, setSeriesToolTipGenerator, setSeriesVisible, setSeriesVisible, setSeriesVisibleInLegend, setSeriesVisibleInLegend, setURLGenerator

Field Details

SHAPES

public static final int SHAPES

Constant for the type of rendering (shapes only).

See Also:

• Constant Field Values

LINES

public static final int LINES

Constant for the type of rendering (lines only).

See Also:

• Constant Field Values

SHAPES_AND_LINES

public static final int SHAPES_AND_LINES

Constant for the type of rendering (shapes and lines).

See Also:

• Constant Field Values

IMAGES

public static final int IMAGES

Constant for the type of rendering (images only).

See Also:

• Constant Field Values

DISCONTINUOUS

public static final int DISCONTINUOUS

Constant for the type of rendering (discontinuous lines).

See Also:

• Constant Field Values

DISCONTINUOUS_LINES

public static final int DISCONTINUOUS_LINES

Constant for the type of rendering (discontinuous lines).

See Also:

• Constant Field Values

Constructor Details

StandardXYItemRenderer

public StandardXYItemRenderer()

Constructs a new renderer.

StandardXYItemRenderer

public StandardXYItemRenderer(int type)

Constructs a new renderer. To specify the type of renderer, use one of the constants: SHAPES, LINES or SHAPES_AND_LINES.

Parameters:

type - the type.

StandardXYItemRenderer

public StandardXYItemRenderer(int type,
 XYToolTipGenerator toolTipGenerator)

Constructs a new renderer. To specify the type of renderer, use one of the constants: SHAPES, LINES or SHAPES_AND_LINES.

Parameters:

type - the type of renderer.

toolTipGenerator - the item label generator (null permitted).

StandardXYItemRenderer

public StandardXYItemRenderer(int type,
 XYToolTipGenerator toolTipGenerator,
 XYURLGenerator urlGenerator)

Constructs a new renderer. To specify the type of renderer, use one of the constants: SHAPES, LINES or SHAPES_AND_LINES.

Parameters:

type - the type of renderer.

toolTipGenerator - the item label generator (null permitted).

urlGenerator - the URL generator.

Method Details

getBaseShapesVisible

public boolean getBaseShapesVisible()

Returns true if shapes are being plotted by the renderer.

Returns:

true if shapes are being plotted by the renderer.

See Also:

• setBaseShapesVisible(boolean)

setBaseShapesVisible

public void setBaseShapesVisible(boolean flag)

Sets the flag that controls whether or not a shape is plotted at each data point.

Parameters:

flag - the flag.

See Also:

• getBaseShapesVisible()

getItemShapeFilled

public boolean getItemShapeFilled(int series,
 int item)

Returns the flag used to control whether or not the shape for an item is filled.

The default implementation passes control to the getSeriesShapesFilled() method. You can override this method if you require different behaviour.

Parameters:

series - the series index (zero-based).

item - the item index (zero-based).

Returns:

A boolean.

See Also:

• getSeriesShapesFilled(int)

getSeriesShapesFilled

public Boolean getSeriesShapesFilled(int series)

Returns the flag used to control whether or not the shapes for a series are filled.

Parameters:

series - the series index (zero-based).

Returns:

A boolean.

setSeriesShapesFilled

public void setSeriesShapesFilled(int series,
 Boolean flag)

Sets the 'shapes filled' flag for a series and sends a RendererChangeEvent to all registered listeners.

Parameters:

series - the series index (zero-based).

flag - the flag.

See Also:

• getSeriesShapesFilled(int)

getBaseShapesFilled

public boolean getBaseShapesFilled()

Returns the base 'shape filled' attribute.

Returns:

The base flag.

See Also:

• setBaseShapesFilled(boolean)

setBaseShapesFilled

public void setBaseShapesFilled(boolean flag)

Sets the base 'shapes filled' flag and sends a RendererChangeEvent to all registered listeners.

Parameters:

flag - the flag.

See Also:

• getBaseShapesFilled()

getPlotLines

public boolean getPlotLines()

Returns true if lines are being plotted by the renderer.

Returns:

true if lines are being plotted by the renderer.

See Also:

• setPlotLines(boolean)

setPlotLines

public void setPlotLines(boolean flag)

Sets the flag that controls whether or not a line is plotted between each data point and sends a RendererChangeEvent to all registered listeners.

Parameters:

flag - the flag.

See Also:

• getPlotLines()

getGapThresholdType

public UnitType getGapThresholdType()

Returns the gap threshold type (relative or absolute).

Returns:

The type.

See Also:

• setGapThresholdType(UnitType)

setGapThresholdType

public void setGapThresholdType(UnitType thresholdType)

Sets the gap threshold type and sends a RendererChangeEvent to all registered listeners.

Parameters:

thresholdType - the type (null not permitted).

See Also:

• getGapThresholdType()

getGapThreshold

public double getGapThreshold()

Returns the gap threshold for discontinuous lines.

Returns:

The gap threshold.

See Also:

• setGapThreshold(double)

setGapThreshold

public void setGapThreshold(double t)

Sets the gap threshold for discontinuous lines and sends a RendererChangeEvent to all registered listeners.

Parameters:

t - the threshold.

See Also:

• getGapThreshold()

getPlotImages

public boolean getPlotImages()

Returns true if images are being plotted by the renderer.

Returns:

true if images are being plotted by the renderer.

See Also:

• setPlotImages(boolean)

setPlotImages

public void setPlotImages(boolean flag)

Sets the flag that controls whether or not an image is drawn at each data point and sends a RendererChangeEvent to all registered listeners.

Parameters:

flag - the flag.

See Also:

• getPlotImages()

getPlotDiscontinuous

public boolean getPlotDiscontinuous()

Returns a flag that controls whether or not the renderer shows discontinuous lines.

Returns:

true if lines should be discontinuous.

setPlotDiscontinuous

public void setPlotDiscontinuous(boolean flag)

Sets the flag that controls whether or not the renderer shows discontinuous lines, and sends a RendererChangeEvent to all registered listeners.

Parameters:

flag - the new flag value.

getDrawSeriesLineAsPath

public boolean getDrawSeriesLineAsPath()

Returns a flag that controls whether or not each series is drawn as a single path.

Returns:

A boolean.

See Also:

• setDrawSeriesLineAsPath(boolean)

setDrawSeriesLineAsPath

public void setDrawSeriesLineAsPath(boolean flag)

Sets the flag that controls whether or not each series is drawn as a single path.

Parameters:

flag - the flag.

See Also:

• getDrawSeriesLineAsPath()

getLegendLine

public Shape getLegendLine()

Returns the shape used to represent a line in the legend.

Returns:

The legend line (never null).

See Also:

• setLegendLine(Shape)

setLegendLine

public void setLegendLine(Shape line)

Sets the shape used as a line in each legend item and sends a RendererChangeEvent to all registered listeners.

Parameters:

line - the line (null not permitted).

See Also:

• getLegendLine()

getLegendItem

public LegendItem getLegendItem(int datasetIndex,
 int series)

Returns a legend item for a series.

Specified by:

getLegendItem in interface XYItemRenderer

Overrides:

getLegendItem in class AbstractXYItemRenderer

Parameters:

datasetIndex - the dataset index (zero-based).

series - the series index (zero-based).

Returns:

A legend item for the series.

initialise

public XYItemRendererState initialise(Graphics2D g2,
 Rectangle2D dataArea,
 XYPlot plot,
 XYDataset data,
 PlotRenderingInfo info)

Initialises the renderer.

This method will be called before the first item is rendered, giving the renderer an opportunity to initialise any state information it wants to maintain. The renderer can do nothing if it chooses.

Specified by:

initialise in interface XYItemRenderer

Overrides:

initialise in class AbstractXYItemRenderer

Parameters:

g2 - the graphics device.

dataArea - the area inside the axes.

plot - the plot.

data - the data.

info - an optional info collection object to return data back to the caller.

Returns:

The renderer state.

drawItem

public void drawItem(Graphics2D g2,
 XYItemRendererState state,
 Rectangle2D dataArea,
 PlotRenderingInfo info,
 XYPlot plot,
 ValueAxis domainAxis,
 ValueAxis rangeAxis,
 XYDataset dataset,
 int series,
 int item,
 CrosshairState crosshairState,
 int pass)

Draws the visual representation of a single data item.

Specified by:

drawItem in interface XYItemRenderer

Parameters:

g2 - the graphics device.

state - the renderer state.

dataArea - the area within which the data is being drawn.

info - collects information about the drawing.

plot - the plot (can be used to obtain standard color information etc).

domainAxis - the domain axis.

rangeAxis - the range axis.

dataset - the dataset.

series - the series index (zero-based).

item - the item index (zero-based).

crosshairState - crosshair information for the plot (null permitted).

pass - the pass index.

equals

public boolean equals(Object obj)

Tests this renderer for equality with another object.

Overrides:

equals in class AbstractXYItemRenderer

Parameters:

obj - the object (null permitted).

Returns:

A boolean.

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of the renderer.

Specified by:

clone in interface PublicCloneable

Overrides:

clone in class AbstractXYItemRenderer

Returns:

A clone.

Throws:

CloneNotSupportedException - if the renderer cannot be cloned.

getImage

protected Image getImage(Plot plot,
 int series,
 int item,
 double x,
 double y)

Returns the image used to draw a single data item.

Parameters:

plot - the plot (can be used to obtain standard color information etc).

series - the series index.

item - the item index.

x - the x value of the item.

y - the y value of the item.

Returns:

The image.

See Also:

• getPlotImages()

getImageHotspot

protected Point getImageHotspot(Plot plot,
 int series,
 int item,
 double x,
 double y,
 Image image)

Returns the hotspot of the image used to draw a single data item. The hotspot is the point relative to the top left of the image that should indicate the data item. The default is the center of the image.

Parameters:

plot - the plot (can be used to obtain standard color information etc).

series - the series index

item - the item index

x - the x value of the item

y - the y value of the item

image - the image (can be used to get size information about the image)

Returns:

The hotspot used to draw the data item.