org.jfree.chart.plot
Class FastScatterPlot

java.lang.Object
  |
  +--org.jfree.chart.plot.Plot
        |
        +--org.jfree.chart.plot.FastScatterPlot

All Implemented Interfaces:

AxisChangeListener, AxisConstants, DatasetChangeListener, java.util.EventListener, HorizontalValuePlot, java.io.Serializable, VerticalValuePlot

public class FastScatterPlot

extends Plot

implements HorizontalValuePlot, VerticalValuePlot, java.io.Serializable

A fast scatter plot.

Author:

David Gilbert

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jfree.chart.plot.Plot

DEFAULT_BACKGROUND_ALPHA, DEFAULT_BACKGROUND_PAINT, DEFAULT_FOREGROUND_ALPHA, DEFAULT_INSETS, DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, MINIMUM_HEIGHT_TO_DRAW, MINIMUM_WIDTH_TO_DRAW, ZERO

Fields inherited from interface org.jfree.chart.axis.AxisConstants

BOTTOM, DEFAULT_AXIS_LABEL_FONT, DEFAULT_AXIS_LABEL_INSETS, DEFAULT_AXIS_LABEL_PAINT, DEFAULT_AXIS_VISIBLE, DEFAULT_TICK_LABEL_FONT, DEFAULT_TICK_LABEL_INSETS, DEFAULT_TICK_LABEL_PAINT, DEFAULT_TICK_LABELS_VISIBLE, DEFAULT_TICK_MARK_INSIDE_LENGTH, DEFAULT_TICK_MARK_OUTSIDE_LENGTH, DEFAULT_TICK_MARK_PAINT, DEFAULT_TICK_MARK_STROKE, DEFAULT_TICK_MARKS_VISIBLE, LEFT, RIGHT, TOP

Constructor Summary

FastScatterPlot(float[][] data, ValueAxis domainAxis, ValueAxis rangeAxis)
Creates a new fast scatter plot.

Method Summary

void	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D plotArea, ChartRenderingInfo info) Draws the fast scatter plot on a Java 2D graphics device (such as the screen or a printer).
ValueAxis	getDomainAxis() Returns the domain axis for the plot.
Range	getHorizontalDataRange(ValueAxis axis) Returns the range of data values to be plotted along the horizontal axis.
ValueAxis	getHorizontalValueAxis() Get the value axis.
java.lang.String	getPlotType() Returns a short string describing the plot type.
ValueAxis	getRangeAxis() Returns the range axis for the plot.
Range	getVerticalDataRange(ValueAxis axis) Returns the range for the data to be plotted against the vertical axis.
ValueAxis	getVerticalValueAxis() Returns the vertical axis.
void	render(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, ChartRenderingInfo info, CrosshairInfo crosshairInfo) Draws a representation of the data within the dataArea region.

Methods inherited from class org.jfree.chart.plot.Plot

addChangeListener, axisChanged, datasetChanged, drawBackground, drawNoDataMessage, drawOutline, equals, getBackgroundAlpha, getBackgroundImage, getBackgroundImageAlignment, getBackgroundPaint, getDataAreaRatio, getDataset, getDatasetGroup, getForegroundAlpha, getInsets, getLegendItems, getNoDataMessage, getNoDataMessageFont, getNoDataMessagePaint, getOppositeAxisLocation, getOutlinePaint, getOutlineStroke, getParent, getRectX, getRectY, getRootPlot, getSecondaryDataset, handleClick, isSubplot, notifyListeners, removeChangeListener, setBackgroundAlpha, setBackgroundImage, setBackgroundImageAlignment, setBackgroundPaint, setDataAreaRatio, setDataset, setDatasetGroup, setForegroundAlpha, setInsets, setInsets, setNoDataMessage, setNoDataMessageFont, setNoDataMessagePaint, setOutlinePaint, setOutlineStroke, setParent, setSecondaryDataset, zoom

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FastScatterPlot

public FastScatterPlot(float[][] data,
                       ValueAxis domainAxis,
                       ValueAxis rangeAxis)

Creates a new fast scatter plot.

The data is an array of x, y values: data[0][i] = x, data[1][i] = y.

Parameters:

data - the data.

domainAxis - the domain (x) axis.

rangeAxis - the range (y) axis.

Method Detail

getDomainAxis

public ValueAxis getDomainAxis()

Returns the domain axis for the plot. If the domain axis for this plot is null, then the method will return the parent plot's domain axis (if there is a parent plot).

Returns:

the domain axis.

getRangeAxis

public ValueAxis getRangeAxis()

Returns the range axis for the plot. If the range axis for this plot is null, then the method will return the parent plot's range axis (if there is a parent plot).

Returns:

the range axis.

draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D plotArea,
                 ChartRenderingInfo info)

Draws the fast scatter plot on a Java 2D graphics device (such as the screen or a printer).

Specified by:

draw in class Plot

Parameters:

g2 - the graphics device.

plotArea - the area within which the plot (including axis labels) should be drawn.

info - collects chart drawing information (null permitted).

render

public void render(java.awt.Graphics2D g2,
                   java.awt.geom.Rectangle2D dataArea,
                   ChartRenderingInfo info,
                   CrosshairInfo crosshairInfo)

Draws a representation of the data within the dataArea region.

The info and crosshairInfo arguments may be null.

Parameters:

g2 - the graphics device.

dataArea - the region in which the data is to be drawn.

info - an optional object for collection dimension information.

crosshairInfo - an optional object for collecting crosshair info.

getPlotType

public java.lang.String getPlotType()

Returns a short string describing the plot type.

Specified by:

getPlotType in class Plot

Returns:

a short string describing the plot type.

getHorizontalDataRange

public Range getHorizontalDataRange(ValueAxis axis)

Returns the range of data values to be plotted along the horizontal axis.

Specified by:

getHorizontalDataRange in interface HorizontalValuePlot

Parameters:

axis - the axis.

Returns:

the range.

getHorizontalValueAxis

public ValueAxis getHorizontalValueAxis()

Get the value axis.

Specified by:

getHorizontalValueAxis in interface HorizontalValuePlot

Returns:

the value axis.

getVerticalDataRange

public Range getVerticalDataRange(ValueAxis axis)

Returns the range for the data to be plotted against the vertical axis.

Specified by:

getVerticalDataRange in interface VerticalValuePlot

Parameters:

axis - the axis.

Returns:

the range.

getVerticalValueAxis

public ValueAxis getVerticalValueAxis()

Returns the vertical axis.

Specified by:

getVerticalValueAxis in interface VerticalValuePlot

Returns:

the axis.