Laboratoire ICAR » Plateforme TXM

JFreeChart

==========

Version 1.5.0, 5 November 2017.

[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.jfree/jfreechart/badge.svg)](https://maven-badges.herokuapp.com/maven-central/org.jfree/jfreechart)

Overview

--------

JFreeChart is a comprehensive free chart library for the Java(tm) platform that

can be used on the client-side (JavaFX and Swing) or the server side (with

export to multiple formats including SVG, PNG and PDF).

![JFreeChart sample](http://jfree.org/jfreechart/images/coffee_prices.png)

The home page for the project is:

http://www.jfree.org/jfreechart

JFreeChart requires JDK 1.6.0 or later.  If JavaFX support is required, you

need to also include the JFreeChart-FX extensions:

https://github.com/jfree/jfreechart-fx

The library is licensed under the terms of the GNU Lesser General Public

License (LGPL) version 2.1 or later.

Using JFreeChart

----------------

To use JFreeChart in your projects, add the following dependency to your build tool:

    <dependency>

        <groupId>org.jfree</groupId>

        <artifactId>jfreechart</artifactId>

        <version>1.5.0</version>

    </dependency>

Building JFreeChart

-------------------

You can build JFreeChart using Maven by issuing the following command from the root directory of the project:

    mvn clean install

The build requires JDK 1.6.0 or later.

Migration from JFreeChart 1.0.x

-------------------------------

When migrating from JFreeChart 1.0.x to JFreeChart 1.5.0, please be aware of the following API changes:

* all the classes from JCommon that are used by JFreeChart have integrated within the JFreeChart jar file within a different package than before (you will need to change your imports);

* many methods `getBaseXXX()/setBaseXXX()` have been renamed `setDefaultXXX()/getDefaultXXX()`;

* the `ChartUtilities` class has been renamed `ChartUtils`;

* all the classes relating to pseudo-3D charts have been removed, as much better 3D charts are offered by [Orson Charts](https://github.com/jfree/orson-charts) so we prefer not to maintain the pseudo-3D chart code within JFreeChart;

* the `SegmentedTimeline` class has been removed due to being (a) complex, (b) not always being correct and, as a result, generating too many support requests;

* the `org.jfree.chart.utils.ParamChecks` class has been renamed `org.jfree.chart.utils.Args`.

Please refer to [Issue 66](https://github.com/jfree/jfreechart/issues/66) for additional info.

Demos

-----

A small set of demo applications can be found in the following projects here

at GitHub:

* [JFree-Demos](https://github.com/jfree/jfree-demos "JFree-Demos Project Page at GitHub")

* [JFree-FXDemos](https://github.com/jfree/jfree-fxdemos "JFree-FXDemos Project Page at GitHub")

History

-------

##### Version 1.5.0 (5 November 2017)

- all JavaFX classes moved to a separate project;

- added cleaner method to create histograms in `ChartFactory`;

- JCommon removed as a dependency, and required classes incorporated directly (including package rename);

- pull request #4 improvements to `XYStepRenderer`;

- bug #36 fix for crosshairs with multiple datasets / axes;

- bug #25 fix for `DateAxis.previousStandardDate()` method;

- bug #19 fix for default time zone in `SegmentedDateAxis`;

- SourceForge #1147 improve performance of `CategoryPlot` mapping datasets to axes;

- moved SWT code out into separate projects;

- moved demo programs to a separate project;

- dropped the Ant build;

##### Version 1.0.19 (31-Jul-2014)

- fixed clipping issues for combined plots in JavaFX;

- fixed a memory leak in the new JavaFX `ChartCanvas` class;

- `CombinedDomainXYPlot` and `CombinedRangeXYPlot` now take into account the pannable flags in the subplots;

- `FastScatterPlot` panning direction is corrected;

- added rendering hints to sharpen gridlines and borders in most output formats;

- JFreeSVG updated to version 2.0;

- included a preview of JSFreeChart, a 2D chart library written in JavaScript that is conceptually similar to JFreeChart but runs directly in a web browser.

##### Version 1.0.18 (3-Jul-2014)

- added JavaFX support via `FXGraphics2D`;

- improved `LogAxis` labelling;

- improved numeric tick labelling;

- center text support in `RingPlot`;

- `stepPoint` attribute in the `XYStepAreaRenderer`;

- other minor improvements and bug fixes.

##### Version 1.0.17 (22-Nov-2013)

- Enhanced `XYSplineRenderer` with new area fill (contributed by Klaus Rheinwald);

- added a notify flag to all datasets that extend `AbstractDataset`;

- extended `TimeSeriesCollection` to validate `TimeSeries` keys for uniqueness;

- added a new `DirectionalGradientPaintTransformer` (by Peter Kolb);

- updated `OHLCSeries`;

- added `HMSNumberFormat`;

- updated JCommon to version 1.0.21 (includes rotated text improvements) and fixed some minor bugs.

###### Bug Fixes

- 977  : Multithreading issue with `DateAxis`;

- 1084 : `BorderArrangement.add()` possible `ClassCastException`;

- 1099 : `XYSeriesCollection.removeSeries(int)` does not deregister listener;

- 1109 : `WaterfallBarRenderer` uses wrong color for diff 0.

##### Version 1.0.16 (13-Sep-2013)

*** THIS RELEASE REQUIRES JDK/JRE 1.6.0 OR LATER. ***

- Provided subscript/superscript support for axis labels (via `AttributedString`);

- new axis label positioning options;

- simplified `ChartFactory` methods;

- added new methods to `DatasetUtilities` to interpolate y-values in `XYDatasets`;

- added URLs to labels on `CategoryAxis`;

- seamless integration with JFreeSVG (http://www.jfree.org/jfreesvg/) and OrsonPDF

(http://www.object-refinery.com/pdf/);

- improved the consistency of the `SWTGraphics2D` implementation;

All the JUnit tests have been upgraded to JUnit 4.

###### Bug Fixes

- 1107 : Fixed TimeZone issue in `PeriodAxis`;

Also fixed a line drawing issue with the `StackedXYAreaRenderer`, and a memory

leak in the SWT `ChartComposite` class.

##### Version 1.0.15 (4-Jul-2013)

- Added support for non-visible series in `XYBarRenderer`;

- minor gridlines in `PolarPlot`;

- legend item ordering;

- chart editor enhancements;

- updates to `StandardDialScale`;

- localisation files for Japanese;

- refactored parameter checks.

This release also fixes a minor security flaw in the `DisplayChart` class, detected and reported by OSI Security:

http://www.osisecurity.com.au/advisories/jfreechart-path-disclosure

###### Patches

- 3500621 : `LegendTitle` order attribute (by Simon Kaczor);

- 3463807 : `ChartComposite` does not dispose popup (by Sebastiao Correia);

- 3204823 : `PaintAlpha` for 3D effects (by Dave Law);

###### Bug Fixes

- 3561093 : Rendering anomaly for `XYPlots`;

- 3555275 : `ValueAxis.reserveSpace()` problem for axes with fixed dimension;

- 3521736 : `DeviationRenderer` optimisation (by Milan Ramaiya);

- 3514487 : `SWTGraphics2D` `get/setStroke()` problem;

- 3508799 : `DefaultPolarItemRenderer` does not populate `seriesKey` in `LegendItem`;

- 3482106 : Missing text in `SWTGraphics2D` (by Kevin Xu);

- 3484408 : Maven fixes (Martin Hoeller);

- 3484403 : `DateAxis` endless loop (by Martin Hoeller);

- 3446965 : `TimeSeries` calculates range incorrectly in `addOrUpdate()`;

- 3445507 : `TimeSeriesCollection.findRangeBounds()` regression;

- 3425881 : `XYDifferenceRenderer` fix (by Patrick Schlott/Christoph Schroeder);

- 2963199 : SWT print job (by Jonas Rüttimann);

- 2879650 : Path disclosure vulnerability in `DisplayChart` servlet;

Also fixed a rendering issue for polar charts using an inverted axis.

##### Version 1.0.14 (20-Nov-2011)

This release contains:

- support for multiple and logarithmic axes with `PolarPlot`;

- optional drop-shadows in plot rendering;

- fitting polynomial functions to a data series;

- some performance improvements in the `TimeSeriesCollection` class;

- mouse wheel rotation of pie charts;

- improved Maven support.

###### Patches

- 3435734 : Fix lines overlapping item labels (by Martin Hoeller);

- 3421088 : Bugfix for misalignment in `BoxAndWhiskerRenderer`;

- 2952086 : Enhancement for finding bounds in `XYZDatasets`;

- 2954302 : `CategoryPointerAnnotation` line calculation;

- 2902842 : `HistogramDataset.addSeries()` fires change change event (by Thomas A Caswell);

- 2868608 : Whisker width attribute for `BoxAndWhiskerRenderer` (by Peter Becker);

- 2868585 : Added `useOutlinePaint` flag for `BoxAndWhiskerRenderer` (by Peter Becker);

- 2850344 : `PolarPlot` enhancements (by Martin Hoeller);

- 2795746 : Support for polynomial regression;

- 2791407 : Fixes for `findRangeBounds()` in various renderers.

###### Bug Fixes

- 3440237 : Shadows always visible;

- 3432721 : `PolarPlot` doesn't work with logarithmic axis;

- 3433405 : `LineChart3D` - Problem with Item Labels;

- 3429707 : `LogAxis` endless loop;

- 3428870 : Missing argument check in `TextAnnotation`;

- 3418287 : `RelativeDateFormatTest.java` is locale dependent;

- 3353913 : Localisation fixes for `ChartPanel`, `CompassPlot` and `PiePlot3D`;

- 3237879 : `RingPlot` should respect `getSectionOutlineVisible()`;

- 3190615 : Added missing `clear()` method in `CategoryTableXYDataset`;

- 3165708 : `PolarChartPanel` localisation fix;

- 3072674 : Bad handling of `NaN` in `DefaultStatisticalCategoryDataset`;

- 3035289 : `StackedXYBarRenderer` should respect series/item visible flags;

- 3026341 : Check for null in `getDomain/RangeBounds()` for `XYShapeRenderer`;

- 2947660 : `AbstractCategoryRenderer` fix null check in `getLegendItems()`;

- 2946521 : `StandardDialScale` check `majorTickIncrement` argument;

- 2876406 : `TimeTableXYDataset` should support `Comparable` for series keys;

- 2868557 : `BoxAndWhiskerRenderer` should fire change event in `setMedianVisible()`;

- 2849731 : For `IntervalCategoryDataset` and `IntervalXYDataset`, fix `iterateRangeBounds()` in `DatasetUtilities`;

- 2840132 : `AbstractXYItemRenderer` `drawAnnotations` doesn't set renderer index;

- 2810220 : Offset problem in `StatisticalBarRenderer`;

- 2802014 : Dial value border too small;

- 2781844 : `XYPointerAnnotation` arrow drawing;

- 1937486 : `AreaRenderer` doesn't respect `AreaRendererEndType.LEVEL`;

Also fixed:

- use of simple label offset in `PiePlot`;

- cached `minY` and `maxY` in `TimeSeries.createCopy()`;

- scaling issues for charts copied to the clipboard;

- use of timezone in `TimeTableXYDataset` constructor;

- duplicate series names in `XYSeriesCollection`;

- `HistogramDataset` fires a change event in `addSeries()`;

- check visibility of main chart title before drawing it;

- fixed serialization of `PowerFunction2D`, `NormalDistributionFunction2D`, and `LineFunction2D`;

- item label positioning for the `AreaRenderer` class when the plot has an horizontal orientation.

##### Version 1.0.13 (17-Apr-2009)

> SPECIAL NOTICE:  There will be a birds-of-a-feather session for JFreeChart at this year's JavaOne conference in San Francisco.  The session is scheduled for 6.45pm to 7.35pm on Wednesday 3 June.

This release contains:

- updates to the `ChartPanel` class to support copying charts to the clipboard,

  panning and mouse-wheel zooming, and an overlay mechanism that supports

  crosshairs;

- enhancements to the auto-range calculation for axes, providing the ability

  to use subranges only and also to skip hidden series;

- updates for many of the `CategoryItemRenderer` implementations to ensure that

  they respect the `seriesVisible` flags;

- an improvement to the `TimeSeries` class so that it is no longer necessary to

  specify the time period type in the constructor;

- a new `SamplingXYLineRenderer` for improving the performance of time series

  charts with large datasets;

- the `XYSeries/XYSeriesCollection` classes now cache the minimum and maximum

  data values to improve the performance of charts with large datasets;

- entities are now created for the chart, data area and axes, allowing mouse

  clicks to be detected for these regions;

- added a bar alignment factor to the `XYBarRenderer` class;

- a new `errorIndicatorStroke` field for the `StatisticalLineAndShapeRenderer` and `XYErrorRenderer` classes;

- added a new `HeatMapDataset` interface, `DefaultHeatMapDataset` implementation,

  and a `HeatMapUtilities` class to make it easier to create heat map charts;

- there is a new flag to allow an `XYDataImageAnnotation` to be included in the

  automatic range calculation for the axes;

- additional attributes in the `XYTextAnnotation` class;

- added a `sampleFunction2DToSeries()` method to the `DatasetUtilities` class;

- some changes to the `ChartPanel` class that help to work around a regression in

  JRE 1.6.0_10 relating to drawing in XOR mode.  Regarding this final point:

     * the default value for the `useBuffer` flag has changed to true, which means

       that all charts will, by default, be rendered into an off-screen image

       before being displayed in the `ChartPanel`;

     * the zoom rectangle is drawn using XOR mode *only* when the `useBuffer`

       flag has been set to false.

  For most usage, this should improve performance (but at the cost of using more

  memory for each `ChartPanel` used in your application);

###### Bug Fixes

- 2690293 : Problem with Javascript escape characters;

- 2617557 : `StandardDialScale` ignored `tickLabelPaint`;

- 2612649 : `Stroke` selection in plot property editor;

- 2583891 : `SWTGraphics2D.fillPolygon()` not implemented;

- 2564636 : `Month` constructor ignores Locale;

- 2502355 : `ChartPanel` sending multiple events;

- 2490803 : `PeriodAxis.setRange()` method doesn't take into account that the axis

          displays whole periods;

In addition, a bug in the `SlidingCategoryDataset` class has been fixed, the

correct outline paint is now used by `GradientXYBarPainter`, a new method

has been added to the `ImageMapUtilities` class to escape special characters

in Javascript strings to avoid problems with the OverLIB and DynamicDrive

tooltips, and there are some important fixes in the `LogAxis` class.

This release passes 2110 JUnit tests (0 failures) on JRE 1.6.0_12.

##### Version 1.0.12 (31-Dec-2008)

This release adds

- support for minor tick marks;

- mapping datasets to more than one axis;

- an important fix for the `XYSeries` class (relating to the `addOrUpdate()` method);

- plus numerous other bug fixes.

This release passes 1996 JUnit test (0 failures) on JRE 1.6.0_10.

###### API Adjustments

- `CategoryPlot` : added `mapDatasetToDomainAxes()` and `mapDatasetToRangeAxes()` methods;

- `Month` : added a new constructor `Month(Date, TimeZone, Locale)` and deprecated `Month(Date, TimeZone)`;

- `Quarter` : added a new constructor `Quarter(Date, TimeZone, Locale)` and deprecated `Quarter(Date, TimeZone)`;

- `XYPlot` : added `mapDatasetToDomainAxes()` and `mapDatasetToRangeAxes()` methods;

- `Year` : added a new constructor `Year(Date, TimeZone, Locale)` and deprecated `Year(Date, TimeZone)`;

###### Bug Fixes

- 2471906 : `XYAreaRenderer` with dashed outline - performance problem;

- 2452078 : `StackedAreaChart` has gaps;

- 2275695 : `NullPointerException` for `SubCategoryAxis` on plot with null dataset;

- 2221495 : `XYLineAnnotation` with dashed stroke;

- 2216511 : `SWTBarChartDemo1` throws `RuntimeException`;

- 2201869 : `DateAxis` tick label position error;

- 2121818 : Label link lines for very thin `RingPlot`;

- 2113627 : `XYStepRenderer` item labels;

- 1955483 : `XYSeries.addOrUpdate()` problem.

Also fixed `StackedXYBarRenderer` which was ignoring the `shadowsVisible` attribute.

##### Version 1.0.11 (18-Sep-2008)

This release features:

- a new chart theming mechanism to allow charts to be restyled conveniently;

- a new `BarPainter` mechanism to enhance the appearance of bar charts;

- a new `XYShapeRenderer` class;

- a scaling facility for the `XYDrawableAnnotation` for drawing images within specific data coordinates;

- some new classes (`XYTaskDataset`, `XYDataImageAnnotation` and `XYTitleAnnotation`);

- a modification to the `Year` class to support an extended range;

- various bug fixes and API improvements.

There is an important bug fix for the `StackedBarRenderer3D` class (see bug 2031407).

This release passes 1,961 JUnit tests (0 failures) on JRE 1.6.0_07.

###### API Adjustments

- `AbstractRenderer` - added `clearSeriesPaints()` and `clearSeriesStrokes()` methods;

- `BarRenderer` - added `shadowPaint` attribute;

- `CategoryAxis` - added `getCategoryMiddle()` method;

- `CategoryPlot` - added `getRendererCount()` method;

- `ChartFactory` - added `get/setChartTheme()` methods;

- `ChartPanel` - increased default maximum drawing width and height;

- `ChartTheme` - new interface;

- `ChartUtilities` - added `applyCurrentTheme()` method;

- `CompositeTitle` - added `backgroundPaint` attribute;

- `GradientBarPainter` - new class;

- `LegendTitle` - added `getWrapper()` method;

- `OHLCSeriesCollection` - added `xPosition` attribute;

- `PaintScaleLegend` - new subdivisions field;

- `PiePlot` - added `autoPopulate` flags, and methods to clear section attributes;

- `Plot` - added `setDrawingSupplier()` method;

- `RegularTimePeriod` - the `DEFAULT_TIME_ZONE` field has been deprecated in this release;

- `RelativeDateFormat` - added methods to control formatting of hours and minutes - see patch 2033092;

- `StandardChartTheme` - new class;

- `XYItemRendererState` - new methods;

- `XYPlot` - added `getRendererCount()` method;

- `XYShapeRenderer` - new class;

- `XYTaskDataset` - new class.

###### Patches

- 1997549 : Status calls to `XYItemRendererState` [Ulrich Voigt];

- 2006826 : `CompositeTitle` drawing fix;

- 2033092 : Additional formatters for `RelativeDateFormat` [Cole Markham];

###### Bug Fixes

- 1994355 : `ChartComposite` listener type;

- 2031407 : Incorrect rendering in `StackedBarRenderer3D`;

- 2033721 : `WaferMapRenderer`;

- 2051168 : No key in `LegendItemEntity` for pie charts;

Also fixed drawing of alternate grid bands in `SymbolAxis`, the `totalWeight`

calculation in the `CombinedXXXPlot` classes, a `NullPointerException` in the

`XYPlot` class when drawing quadrants, outline visibility in the

`CategoryPlot` class, and auto-range calculations with `XYBarRenderer`.

##### Version 1.0.10 (8-Jun-2008)

This release contains various bug fixes and minor enhancements to JFreeChart.

- PiePlot labelling has been enhanced (new curve options, and more robust bounds checking);

- The BoxAndWhiskerRenderer now has a maximumBarWidth attribute;

- the XYStepRenderer has a new stepPoint attribute;

- The RelativeDateFormat class has new options;

- There are new dataset classes (SlidingCategoryDataset and SlidingGanttDataset) that permit a subset of categories to be plotted, and allow charts based on these datasets to simulate scrolling.

- There is a new ShortTextTitle class.

This release passes 1,929 JUnit tests (0 failures) on JRE 1.6.0_03.

###### API Adjustments:

- BoxAndWhiskerRenderer - added maximumBarWidth attribute (see patch 1866446);

- ChartPanel - the zoomPoint attribute has been changed from Point to Point2D;

- DatasetUtilities - iterateCategoryRangeBounds() is deprecated, the method has been renamed iterateRangeBounds(CategoryDataset) for consistency;

- DefaultKeyedValue - the constructor now prevents a null key;

- LogFormat - now has a 'powerLabel' attribute;

- ShortTextTitle - a new title class;

- SlidingCategoryDataset - new class;

- SlidingGanttDataset - new class;

- TimeSeriesCollection - getSeries(String) changed to getSeries(Comparable);

- XIntervalSeriesCollection - added series removal methods;

- YIntervalSeriesCollection - added series removal methods;

- XYIntervalSeriesCollection - added series removal methods;

`PublicCloneable` is now implemented by a number of classes that didn't previously implement the interface - this should improve the reliability of chart cloning.

###### Patches

- 1943021 : Fix for MultiplePiePlot [Brian Cabana];

- 1925366 : Speed improvement for DatasetUtilities [Rafal Skalny];

- 1918209 : LogAxis createTickLabel() changed from private to protected [Andrew Mickish];

- 1914411 : Simplification of plot event notification [Richard West];

- 1913751 : XYPlot and CategoryPlot addMarker() methods with optional notification [Richard West];

- 1902418 : Bug fix for LogAxis vertical labels [Andrew Mickish];

- 1901599 : Fixes for XYTitleAnnotation [Andrew Mickish];

- 1891849 : New curve option for pie chart label links [Martin Hilpert];

- 1874890 : Added step point to XYStepRenderer [Ulrich Voigt];

- 1873328 : Enhancements to RelativeDateFormat [Michael Siemer];

- 1871902 : PolarPlot now has angleTickUnit attribute [Martin Hoeller];

- 1868745 : Fix label anchor points on LogAxis [Andrew Mickish];

- 1866446 : Added maximumBarWidth to BoxAndWhiskerRenderer [Rob Van der Sanden];

###### Bug Fixes

- 1932146 - PeriodAxis.setRange() doesn't notify listeners;

- 1927239 - Fix calculation of cumulative range;

- 1926517 - Bugs in data range calculation for combined plots;

- 1920854 - PiePlot3D labels drawn multiple times;

- 1897580 - Fix for DefaultIntervalCategoryDataset;

- 1892419 - Wrong default for minor tick count in LogAxis;

- 1880114 - VectorRenderer doesn't work for horizontal plot orientation;

- 1873160 - DialPlot clipping issues;

- 1868521 - Problem saving charts to JPEG format;

- 1864222 - Error on TimeSeries createCopy() method;

The `DatasetUtilities.sampleFunction2D()` has been changed to sample the correct

number of points - you should check any code that calls this method.  The

`XYBlockRenderer` class now generates entities.  Bugs in the `removeDomainMarker()`

and `removeRangeMarker()` methods in the `CategoryPlot` and `XYPlot` classes have

been fixed.  A bug in the `TimePeriodValues` range calculation has been fixed.

Fixes were applied to the `clone()` methods in the `TaskSeries` and

`TaskSeriesCollection` classes.

###### New Experimental Features

Two new classes `CombinedCategoryPlot` and `CombinedXYPlot` have been added to the

'experimental' source tree - these were contributed by Richard West (see

patch 1924543).

##### Version 1.0.9 (4-Jan-2008)

This release contains an important security patch as well as various bug fixes

and minor enhancements.  Regarding the security patch, please see the

following advisory:

http://www.rapid7.com/advisories/R7-0031.jsp

Note that the fix incorporated in the special JFreeChart 1.0.8a release was

flawed in that it broke the URLs in the HTML image maps generated by

JFreeChart.  Further amendments have been made in this release to fix this

problem.

###### API Adjustments

A number of classes have new methods.  Nothing has been removed or deprecated:

- HashUtilities - added hashCode() methods for BooleanList, PaintList and StrokeList;

- ImageMapUtilities - added htmlEscape(String);

- IntervalMarker - added new constructor;

- Range - added intersects(Range) and scale(Range, double);

- TextTitle - added protected methods arrangeNN(), arrangeFN() and arrangeRN();

- XYDataItem - added getXValue() and getYValue() methods;

- XYPlot - added setFixedDomainAxisSpace(AxisSpace, boolean) and setFixedRangeAxisSpace(AxisSpace, boolean);

- XYSeriesCollection - added getSeries(Comparable) method.

###### Bug Fixes

- 1852525 - CandlestickChart.getCategoryPlot() - ClassCastException;

- 1851416 - testGetFirstMillisecondWithTimeZone fails in 1.0.8a;

- 1849333 - 1.0.8a breaks URLs in HTML image maps;

- 1848961 - GroupedStackedBarRenderer works only for primary dataset;

- 1846063 - Endless loop in paint of XYPlot;

- 1840139 - Cross-site scripting vulnerabilities in image map code;

- 1837979 - Background image not shown with SWT;

- 1460195 - ChartEntity.getImageMapAreaTag() needs nohref;

- 1400917 - OverLIBToolTipTagFragmentGenerator not escaping single quote;

- 1363043 - Escape Image Map Data;

- 1178601 - AbstractRenderer.hashcode() method returns the same value;

In addition, a bug in the constructor for the Week class has been fixed.

##### Version 1.0.8 (23-Nov-2007)

This release is primarily a bug fix release:

- a problem with pie chart labeling;

- a regression in the `DefaultCategoryDataset` class (and underlying `KeyedValues2D` class);

- a cloning bug in the `TimeSeries` class.

In addition:

- the `StatisticalBarRenderer` class has a new `errorIndicatorStroke` field and has been updated to support gradients;

- the `StandardDialScale` has had some missing accessor methods implemented;

- an override field in the `StandardXYItemRenderer` class has been deprecated;

- some warnings reported by FindBugs 1.3.0 have been addressed.

##### Version 1.0.7 (14-Nov-2007)

This release features

- new classes `DialPlot` and `LogAxis` (previously in experimental);

- initial support for minor tick units;

- a new anchored zooming option for the `ChartPanel` class;

- optional simple labeling on pie charts;

- improvements to the "statistical" datasets and underlying data structures;

- and numerous bug fixes.

###### API Adjustments

- `CategoryAxis` - added `getCategorySeriesMiddle()` method;

- `CategoryPlot` - added methods to remove markers;

- `ChartPanel` - added `defaultDirectoryForSaveAs` attribute;

- `DialPlot` - new class, an alternative to `MeterPlot`;

- `LogAxis` - new class, an alternative to `LogarithmicAxis`;

- `NumberTick` - new constructor that allows specification of the tick type;

- `NumberTickUnit` - new constructor to specify the minor tick count;

- `SymbolAxis` - new methods `get/setGridBandAlternatePaint()`;

- `TickType` - new class;

- `TickUnit` - added `minorTickCount` attribute;

- `ValueTick` - added `tickType` attribute;

- `StandardPieSectionLabelGenerator` - new constructors accepting a Locale;

- `StandardPieToolTipGenerator` - likewise;

- `CategoryPlot` - added `getRangeAxisIndex()`, `zoomDomainAxes()` and `zoomRangeAxes()` methods;

- `FastScatterPlot` - added new zooming methods;

- `PiePlot` - new attributes to support simple labeling;

- `PlotUtilities` - new class;

- `PolarPlot` - added new zooming methods;

- `ThermometerPlot` - likewise;

- `XYPlot` - added methods to remove markers (patch 1823697--same as for `CategoryPlot`), and added new zooming methods;

- `Zoomable` - added new zooming methods to this interface;

- `LineAndShapeRenderer` - added `useSeriesOffset` and `itemMargin` attributes;

- `MinMaxCategoryRenderer` - implemented `equals()`;

- `XYSplineAndShapeRenderer` - new class;

- `LogFormat` - new class;

- `ChartFactory` - new pie and ring chart creation methods that accept a `Locale`;

- `ChartPanel` - added `zoomAroundAnchor` attribute;

- `Series` - added `isEmpty()` method;

- `BoxAndWhiskerItem` - new convenience constructor;

- `DefaultBoxAndWhiskerCategoryDataset` - new remove methods;

- `DefaultStatisticalCategoryDataset` - likewise;

- `MeanAndStandardDeviation` - added new value accessor methods;

- `TimeTableXYDataset` - added `clear()` method;

- `Week` - added new constructor;

- `KeyedObjects` - added `insertValue()` and `clear()` methods;

- `KeyedObjects2D` - added `clear()` method.

###### Patches

- 1823724 - updated `XYDifferenceRenderer` to support item labels;

- 1827829 - fixed possible `NullPointerException` in `XYBarRenderer`;

###### Bug Fixes

- 1767315 - `GrayPaintScale.getPaint()` uses wrong value;

- 1775452 - Inverted `XYBarRenderer` does not render margins correctly;

- 1802195 - `Marker.listenerList` serializable;

- 1779941 - `StatisticalBarRenderer` NPE;

- 1766646 - `XYBlockRenderer` can't handle empty datasets;

- 1763413 - `PeriodAxis` labels fail to display with setInverted;

- 1737953 - Zoom doesn't work on `LogAxis` (Demo1);

- 1749124 - `JFreeChart` not added as `TitleChangeListener`;

##### Version 1.0.6 (15-Jun-2007)

This release features:

- a new `VectorRenderer` (previously in experimental);

- a generalised `XYDifferenceRenderer`;

- better support for hotspots on legend items;

- improved performance for time series charts displaying subsets of data;

- support for `GradientPaint` in plot backgrounds;

- plus the usual slew of bug fixes and minor feature additions.

###### API Adjustments

- `CategoryItemEntity` - replaced row and column index attributes with row and column key attributes;

- `CategoryItemRenderer` - numerous series override settings have been deprecated;

- `DefaultPieDataset` - added `insertValues()` method;

- `HexNumberFormat` - new class;

- `LegendItem` - added dataset and seriesKey attributes;

- `Plot` - added new `fillBackground()` method to support `GradientPaint`, and added `is/setOutlineVisible()` methods;

- `QuarterDateFormat` - added `GREEK_QUARTERS` field plus a new constructor;

- `SimpleHistogramDataset` - added `clearObservations()` and `removeAllBins()` methods;

- `TimeSeriesCollection` - added `indexOf()` method;

- `URLUtilities` - new class;

- `XYItemRenderer` - numerous series override settings have been deprecated;

- `XYSeriesCollection` - added indexOf() method.

###### Bug Fixes

- 1735508 - `ClusteredXYBarRenderer` fails with inverted x-axis;

- 1726404 - `ChartComposite` tooltips;

- 1713474 - `StackedBarRenderer3D` doesn't fill shadows;

- 1713401 - `StackedBarRenderer3D` doesn't check `drawBarOutline` flag;

- 1701822 - `DefaultBoxAndWhiskerCategoryDataset` doesn't follow contracts;

- 1698965 - NPE in `CombinedDomainXYPlot`;

- 1690994 - `HideSeriesDemo1` does not work;

- 1690654 - Bug in `removeValue()` of `DefaultKeyedValues2D`;

- 1562701 - `LegendItemEntity` needs dataset index;

- 1486299 - Use `URLEncoder.encode()` for URL generators;

Plus the following bugs that didn't have entries in the database:

- `BarRenderer` - check for series visibility in `getLegendItem()`;

- `ChartPanel` - use correct insets for painting chart buffer to screen, update UI for popup menu if LookAndFeel changes;

- `DateAxis` - fixed boundary cases for `previousStandardDate()` method;

- `LineBorder` - only draw border if area has positive dimensions;

- `JFreeChart` - should register as a listener with the default legend;

- `StandardXYItemRenderer` - fixed a problem where chart entities are created for non-visible items;

- `TimePeriodValuesCollection.getDomainBounds()` now computes the bounds correctly;

- `XYLineAndShapeRenderer` - fixed a problem where chart entities are created for non-visible items;

- `XYLine3DRenderer` - `equals()` implemented, and serialization fixed;

- `XYTitleAnnotation` - fixed `equals()` method;

- various resource usage bugs in the experimental `ChartComposite` class;

##### Version 1.0.5 (23-Mar-2007)

This release features:

- a new `DeviationRenderer` class;

- support for item labels in `StackedXYBarRenderer`;

- tooltips and URLs in the `CategoryStepRenderer`; and

- many bug fixes.

###### API Adjustments

- `AbstractCategoryItemRenderer` - added `createState()` method;

- `StackedXYBarRenderer` - added `get/setRenderAsPercentages()` methods;

- `XYIntervalSeries` - added `getXLowValue()`, `getXHighValue()`, `getYLowValue()` and `getYHighValue()`;

- `YIntervalSeries` - added `getYLowValue()` and `getYHighValue()` methods;

###### Bug Fixes

- 1681777 - `DefaultCategoryDataset` does not clone data;

- 1672552 - Zoom rectangle is lost when the chart is repainted;

- 1671645 - `Crosshair` incorrectly positioned in horizontal orientation;

- 1669302 - Tick labels in vertical symbol axis;

- 1669218 - `CategoryPlot.setDomainAxisLocation()` ignores parameter;

- 1667750 - Clip region not restored in `Spider` and `MeterPlot`;

- 1663380 - OutputStream not closed;

- 1659627 - `IntervalMarker` with `Double.POSITIVE_INFINITY` bound;

- 1647269 - `IntervalMarker` with `Double.MAX_VALUE as upper` bound;

- 1594477 - `XYBarRenderer` does not render bars on `LogarithmicAxis`;

- 1459958 - Log axis zoom function problem;

- 880597 - Zooming `ChartPanel` with log axes;

- 764561 - Dynamic chart zoom buggy.

Also fixed numerous bugs in equals(), cloning and serialization implementations.

##### Version 1.0.4 (9-Feb-2007)

This release features:

- a new `XYBlockRenderer` class;

- URLs for pie chart labels in HTML image maps;

- a new dataset implementation for open-high-low-close charts;

- support for gradient paint in `ClusteredXYBarRenderer`, `StackedXYBarRenderer` and legend graphics;

- a new anchor attribute for `XYImageAnnotation`;

- improvements to the experimental SWT support; plus

- a number of additions to the API for usability; and

- many bug fixes.

###### API Adjustments

- `DateAxis` - added `get/setTimeZone()` methods;

- `DefaultXYDataset` - now implements `PublicCloneable`;

- `StackedXYAreaRenderer2` - added `get/setRoundXValues()` methods;

- `StandardXYItemLabelGenerator` - added new constructor;

- `StandardXYToolTipGenerator` - added new constructor;

- `XYBarDataset` - added `getUnderlyingDataset()` and `get/setBarWidth()` methods;

- `XYDifferenceRenderer` - added `roundXCoordinates` attribute;

- `XYImageAnnotation` - added an image anchor attribute, a new constructor, and several accessor methods;

- `XYSeries` - added `toArray()` method;

###### Bug Fixes

- 1654215 - `XYPlot` renderer with no corresponding dataset;

- 1652640 - `RangeMarkers` do not update properly;

- 1649686 - `Crosshairs` for `StackedXYAreaRenderer`;

- 1647749 - `IllegalArgumentException` in `SWTAxisEditor`;

- 1644877 - Replacing series data in `DefaultXYDataset`;

- 1644010 - `DateAxis.nextStandardDate()` ignores timezone;

- 1638678 - `DateAxis` code uses the default calendar;

- 1629382 - Tests fail for jfreechart-1.0.3;

- 1624067 - `StandardXYToolTipGenerator` missing constructor;

- 1616583 - Serialize `ChartDeleter`;

- 1612770 - Popup menu in wrong position for SWT `ChartComposite`;

- 1611872 - `Minute.previous()` returns null for minute == 0;

- 1608371 - Tick labels overlap with custom `NumberFormat`;

- 1606205 - Draw shared axis last on combined plots;

- 1605207 - `IntervalMarker` exceeds bounds of data area;

- 1605202 - `SpiderWebPlot` method access;

- 1599652 - Inverted `StackedBar3D` problem;

- 1598394 - `XYBarDataset` hiding its proxied object;

- 1564967 - Crosshairs on `XYDifferenceRenderer`;

- 1245305 - `NullPointerException` in `writeImageMap()`;

- 1086307 - Crosshairs on plots with multiple axes.

Also fixed numerous bugs in `equals()` and `clone()` methods throughout the API.

##### Version 1.0.3 (17-Nov-2006)

This release features:

- several new `IntervalXYDataset` implementations;

- some significant refactoring of the time period classes (to improve performance and correctness);

- modifications to the `PiePlot` class to support reordering of dataset items;

- a new event mechanism to allow updating of markers, plus

- many other enhancements, bug fixes and documentation updates.

A new `DialPlot` implementation has been added to the 'experimental' sources.

We are looking for people to test this code and provide feedback, so that we

can stabilize the API and add this code to the main JFreeChart API.

###### API adjustments

The following adjustments have been made to the API:

- `CategoryLabelEntity` - new class;

- `CategoryPointerAnnotation` - new class;

- `ChartPanel`: added new public method `doEditChartProperties()`;

- `ComparableObjectItem`, `ComparableObjectSeries` - new classes;

- `CrosshairState`: added several new accessor methods;

- `DefaultPieDataset`: added `sortByKeys()` and `sortByValues()` methods;

- `Markers`: a change event mechanism has been added to the `Marker` class and its subclasses;

- `StackedAreaRenderer`: added `get/setRenderAsPercentages()` methods;

- `XIntervalDataItem`, `XIntervalSeries` and `XIntervalSeriesCollection` - new classes;

- `XYErrorRenderer`: new class;

- `XYInterval`, `XYIntervalDataItem`, `XYIntervalSeries` and `XYIntervalSeriesCollection` - new classes;

- `YInterval`, `YIntervalDataItem`, `YIntervalSeries`, `YIntervalSeriesCollection` and `YWithXInterval` - new classes.

###### Bug Fixes

- 1578293 - Unused methods in `JDBCXYDataset`;

- 1572478 - `BoxAndWhiskerRenderer` potential `NullPointerException`;

- 1569094 - `XYStepRenderer` with horizontal orientation;

- 1565168 - Crosshair position incorrect;

- 1564977 - `DateAxis` missing initial tick label;

- 1562759 - `StatisticalLineAndShapeRenderer` constructor ignores arguments;

- 1557141 - Bad locale in `ServletUtilities`;

- 1550045 - `TimeSeries.removeAgedItems()` method problems;

- 1549218 - Chart not displaying when all data values are the same and large;

- 1450447 - `Marker.setAlpha()` ignored;

Also fixed URL generation for legend items, tick mark positioning on the

`DateAxis`, the `equals()` method in the `AreaRenderer` class, hardcoded outline

attributes in the `XYBubbleRenderer`, and potential `NullPointerExceptions` in the

`ChartPanel` class.

##### Version 1.0.2 (25-Aug-2006)

###### API adjustments

The following adjustments have been made to the API (there should be no breakage of applications coded to the 1.0.0 or 1.0.1 API):

- `CategoryToPieDataset`: added accessor methods for underlying dataset, extract type and index (feature request 1477915);

- `DefaultXYDataset`:  New dataset implementation that uses double[] arrays;

- `DefaultXYZDataset`:  New dataset implementation that uses double[] arrays;

- `LegendItemBlockContainer`: New container used in legends (enables legend item entities again);

- `MultiplePiePlot`:  Added new fields `aggregatedItemsKey` and `aggregatedItemsPaint`, plus accessor methods - see bug 1190647;

- `SpiderWebPlot`:  Added new fields `toolTipGenerator` and `urlGenerator`, plus accessor methods (see patch 1463455);

- `StackedBarRenderer3D`:  Added new flag (`renderAsPercentages`), plus accessor methods, that controls whether the data items are displayed as values or percentages.  Two new constructors are also added (see patch 1459313);

- `XYPolygonAnnotation`: Added new accessor methods.

###### Patches

- 1459313 - Add `renderAsPercentages` option to `StackedBarRenderer3D`;

- 1462727 - Modify `SpiderWebPlot` to support zero values;

- 1463455 - Modify `SpiderWebPlot` to support mouse clicks, tool tips and URLs;

###### Bug Fixes

- 1514904 - Background image alpha in `Plot` class;

- 1499140 - `ClusteredXYBarRenderer` with margin not drawing correctly;

- 1494936 - `LineAndShapeRenderer` generates entity for non-visible item;

- 1493199 - NPE drawing `SpiderWebPlot` with null info;

- 1480978 - `AbstractPieItemLabelGenerator.clone()` doesn't clone `percentFormat`;

- 1472942 - `DateAxis.equals()` broken;

- 1468794 - `StatisticalLineAndShapeRenderer` doesn't draw error bars correctly when the plot has a horizontal orientation;

- `AbstractCategoryItemRenderer` doesn't check `seriesVisibleInLegend` flag before creating new item;

- 1440415 - Bad distribution of pie chart section labels;

- 1440346 - Bad manifest entry for JCommon in JFreeChart jar file;

- 1435461 - `NumberAxis.equals()` ignores `rangeType` field;

- 1435160 - `XYPointerAnnotation.equals()` ignores x and y fields;

- 1398672 - `LegendItemEntities` not working;

- 1380480 - `StandardXYItemRenderer` problems with `Double.NaN`;

- 1190647 - Legend and section color mismatch for `MultiplePiePlot`.

###### Miscellaneous Changes

- Updated `CandlestickRenderer`, `CyclicXYItemRenderer`, `HighLowRenderer`, `XYStepAreaRenderer` and `TimeSeriesURLGenerator` to call dataset methods that return double primitive only;

- Updated `XYPolygonAnnotation`, adding new accessor methods and fixing problems in the `equals()/hashCode()` methods;

- `ChartFactory.createStackedXYAreaChart()` now uses `StackedXYAreaRenderer2`, for better handling of negative values;

- Added crosshair support for `XYBarRenderer`.

###### Experimental Code

In this release, some new (incomplete) classes have been included in the

`org.jfree.experimental.*` namespace.  These classes are not part of the

standard API, but are included for developers to experiment with and provide

feedback on.  Hopefully in the future, refined versions of these classes will

be incorporated into the main library.  PLEASE NOTE THAT THE API FOR THESE

CLASSES IS SUBJECT TO CHANGE.

##### Version 1.0.1 (27-Jan-2006)

This is primarily a bug fix release.  In addition, there are some API

adjustments (there should be no breakage of applications coded to the 1.0.0 API).

###### API adjustments

- `BarRenderer`: added a new flag (`includeBaseInRange`), plus accessor

    methods, that controls whether or not the base value for the bar is

    included in the range calculated by the `findRangeBounds()` method;

- `BubbleXYItemLabelGenerator`: new class;

- `Range`: added a new method `expandToInclude(Range, double)`, this is used by

    the `BarRenderer` class;

- `TaskSeriesCollection`: added two new methods, `getSeries(int)` and

    `getSeries(Comparable)`;

- `TimeSeriesCollection`:  the `domainIsPointsInTime` flag has been deprecated.

  The flag serves no function now that renderers are used to calculate the domain

  bounds, so you can safely delete any calls to the `setDomainIsPointsInTime()`

  method;

- `XYPlot`: added a new `getAnnotations()` method;

- `XYSeries`: the `update(int, Number)` method has been deprecated and a new

  method `updateByIndex(int, Number)` has been added;

###### Bug fixes

- 1243050 - `XYBarRenderer` doesn't show entire range of values for a `TimeSeriesCollection`;

- 1373371 - `XYBubbleRenderer` doesn't support item labels;

- 1374222 - `BarRenderer` contains JDK 1.4 specific code;

- 1374328 - `LegendItem` serialization problem;

- 1377239 - Bad argument checking in `Quarter` constructor;

- 1379331 - Incorrect drawing of `TextTitle` at LEFT or RIGHT position;

- 1386328 - `RingPlot` entity incorrect;

- 1400442 - Inconsistent treatment of null and zero values in `PiePlot`;

- 1401856 - Bad rendering for non-zero base values in `BarRenderer`;

- 1403043 - `NullPointerException` in `CategoryAxis`;

- 1408904 - `NumberAxis3D` assumes `CategoryPlot`;

- 1415480 - `XYTextAnnotation` equals() method doesn't check (x, y);

##### Version 1.0.0 (2-Dec-2005)

- the first stable release of the JFreeChart class library, all future releases in the 1.0.x series will aim to maintain backward compatibility with this release;

##### Version 1.0.0-rc3 (28-Nov-2005)

- the third "release candidate" for version 1.0.0, this release fixes some issues with the 1.0.0-rc2 release (mainly concerning packaging of resource bundles for localisation).

- if no significant problems are reported in the next few days, the 1.0.0 "final" release will be posted on 2-Dec-2005.

##### Version 1.0.0-rc2 (25-Nov-2005)

- the second "release candidate" for version 1.0.0.  If no problems are reported, 1.0.0 "final" will be released on 2-Dec-2005.

##### Version 1.0.0-rc1 (2-Jun-2005)

- this is a "release candidate" for version 1.0.0.  If no significant API problems are reported, this release will be re-released as version 1.0.0.

##### Version 1.0.0-pre2 (10-Mar-2005)

##### Version 1.0.0-pre1 (29-Nov-2004)

##### Version 0.9.21 (9-Sep-2004)

- added new axes: `PeriodAxis` and `ModuloAxis`.

- split `org.jfree.data` and `org.jfree.chart.renderer` into subpackages for 'category' and 'xy' charts.

- Sun PNG encoder is now used, if available.

- a new demo application makes it easier to preview the chart types that JFreeChart can create.

- added a new series visibility flag to the `AbstractRenderer` class.

- added support for `GradientPaint` in interval markers.

##### Version 0.9.20 (7-Jun-2004)

- primarily bug fixes.

##### Version 0.9.19 (28-May-2004)

- added methods to `XYDataset` that return double primitives;

- removed distinction between "primary" and "secondary" datasets, renderers and axes;

- added fixed legend item options to `CategoryPlot` and `XYPlot`;

- legend changes by Barek Naveh;

- removed Log4j dependency;

- many, many bug fixes;

##### Version 0.9.18 (15-Apr-2004)

- new legend anchor options;

- fixed broken JPEG export;

- fixed title size problems;

- various other bug fixes;

##### Version 0.9.17 (26-Mar-2004)

- pie chart enhancements for labelling, shading and multiple pie charts (2D or 3D) on a single plot;

- new `PolarPlot` class added;

- `XYSeries` can now be sorted or unsorted;

- `createBufferedImage()` method can now scale charts;

- domain and range markers now support intervals;

- item labels are now supported by some `XYItemRenderers`;

- tooltip and item label generators now use `MessageFormat` class;

- added new `XYBarDataset` class;

- added transparency support to PNG export;

- numerous other small enhancements and bug fixes;

##### Version 0.9.16 (09-Jan-2004)

- this release contains bug fixes and some minor feature enhancements (title and category label wrapping, legend shape scaling, enhanced performance for the `DefaultTableXYDataset` class);

- added Spanish localisation files;

##### Version 0.9.15 (28-Nov-2003)

- the focus of this release is bug fixes - quite a number of issues have been resolved, please check the bug database for details;

- added a new Wafer Map chart type;

- added a cyclic axis;

- added localisation files for _ru;

##### Version 0.9.14 (17-Nov-2003)

- implemented zooming for the `FastScatterPlot` class;

- added item label support for stacked bar charts, and new fall back options for item labels that don't fit within bars;

- modified the `CategoryAxis` class to allow additional options for the alignment and rotation of category labels;

- addition of the `AxisState` class, used in the drawing of axes to eliminate a bug when multiple threads draw the same axis simultaneously;

- provided additional attributes in the `DateTickUnit` class to improve labelling on a segmented `DateAxis`;

- added support for `GradientPaint` in bar charts;

- updated the `PNGEncoder`;

- fixes for tick label positioning on axes;

- various Javadoc updates;

- numerous bug fixes;

##### Version 0.9.13 (26-Sep-2003)

         - various enhancements to the stacked area XY charts;

         - added a completion indicator for the Gantt chart;

         - range and domain markers can now be placed in the foreground or the

           background;

         - more fixes for cloning and serialization;

         - fixed mouse event bug for combined charts;

         - fixed bugs in the PngEncoder class;

         - incorporated .properties files that were missing from the 0.9.12

           distribution;

##### Version 0.9.12 (11-Sep-2003)

         - extended box-and-whisker plots to work with the CategoryPlot class

           as well as the XYPlot class (based on work by David Browning);

         - added a new LayeredBarRenderer (by Arnaud Lelievre);

         - added support for stacked area charts with the XYPlot class (thanks

           to Richard Atkinson);

         - improved HTML image map support (thanks to Richard Atkinson);

         - added localized resources for the chart property editors (thanks to

           Arnaud Lelievre).  Current translations include French and Portugese

           (thanks to Eduardo Ramalho);

         - added facility for setting all rendering hints;

         - improved support for cloning and serialization;

         - fixed a bug in the XYSeries class that prevented the TableXYDataset

           from functioning correctly;

         - improved date axis labelling with segmented time lines;

         - fixed several bugs in the secondary dataset/axis/renderer code;

         - fixed bugs in the JDBCCategoryDataset class;

         - numerous other bug fixes;

##### Version 0.9.11 (8-Aug-2003)

         - added support for box-and-whisker plots, thanks to David Browning;

         - lots of bug fixes;

##### Version 0.9.10 (25-Jul-2003)

         - added support for multiple secondary axes, datasets and

           renderers;

         - minor feature enhancements and bug fixes;

##### Version 0.9.9 (10-Jul-2003)

PLEASE NOTE THAT MAJOR CHANGES HAVE BEEN MADE IN THIS

RELEASE AND ONE OR TWO FEATURES MAY BE BROKEN.  PLEASE REPORT BUGS SO THEY CAN

BE FIXED FOR THE NEXT RELEASE.

        - merged the HorizontalCategoryPlot and VerticalCategoryPlot classes,

          into the CategoryPlot class;

        - merged the horizontal and vertical axis classes;

        - merged the horizontal and vertical renderer classes;

        - CategoryPlot and XYPlot now support both horizontal and vertical

          orientation via the setOrientation(...) method;

        - merged horizontal and vertical methods in the ChartFactory class;

        - created new combined plot classes: CombinedDomainCategoryPlot,

          CombinedRangeCategoryPlot, CombinedDomainXYPlot and

          CombinedRangeXYPlot (these can all be drawn with a horizontal or

          vertical orientation);

        - Bill Kelemen has enhanced the DateAxis class to handle segmented

          timelines.  This can be used, for example, to skip weekends for

          daily stock price charts;

        - Richard Atkinson has updated the ServletUtilities class;

        - Bryan Scott has added an XYDatasetTableModel class for presenting

          datasets in a JTable;

        - modified XYPlot to allow renderers to use multiple passes through

          the dataset;

        - added new XYDifferenceRenderer;

        - added support for colored bands between gridlines in XYPlot;