jfreechart example source code file (README.txt)
The jfreechart README.txt source code
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* JFREECHART: Version 1.0.13 *
********************************
20 April 2009
(C)opyright 2000-2009, by Object Refinery Limited and Contributors.
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1. INTRODUCTION
-----------------
JFreeChart is a free chart library for the Java(tm) platform. It runs
on the Java 2 Platform (JDK 1.3 or later) and uses the Java 2D API for
drawing.
JFreeChart is licensed under the terms of the GNU Lesser General
Public Licence (LGPL). A copy of the licence is included in the
distribution.
Please note that JFreeChart is distributed WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. Please refer to the licence for details.
We are grateful to the many developers that have contributed to JFreeChart.
The contributors are listed below in section 10.
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2. LATEST VERSION
-------------------
The latest version of this class library can be obtained from:
http://www.jfree.org/jfreechart/
If you have an comments, suggestions or bugs to report, please post a
message in the JFreeChart forum.
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3. DOCUMENTATION
-----------------
You can download installation instructions
(jfreechart-1.0.13-install.pdf) from the JFreeChart home
page or the project page on SourceForge.
Further documentation for JFreeChart (the JFreeChart Developer Guide) is
available to purchase from by Object Refinery Limited, a company owned and
operated by David Gilbert (the original author of JFreeChart). For more
information, please see:
http://www.object-refinery.com/jfreechart/guide.html
Sales of the JFreeChart Developer Guide are an important source of funding for
the project. Please help us to continue developing free software.
API documentation files in HTML format are available on-line. If you wish
to keep a local copy of the API files, you can regenerate them directly
from the source code. You can do this using the 'javadoc' or 'gjdoc'
utilities directly, or with the Ant script (build.xml) included in the
distribution.
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4. DEPENDENCIES
-----------------
JFreeChart has the following dependencies:
(a) JDK 1.3.1 or higher - JFreeChart requires the Java2D and Collections
APIs, so it definitely won't work with JDK 1.1 (with a small amount of effort
you can probably get it to compile and run with JDK 1.2). If you are using
JFreeChart to create applets, this means that you cannot rely on the JVM
integrated with Microsoft's Internet Explorer - your users will need to have
the Java 2 plug-in installed. Most other browsers (e.g. Firefox, Mozilla,
Netscape, Konqueror) support JRE 1.4, 1.5 or 1.6.
(b) JCommon - version 1.0.0 or later. The runtime jar file (version 1.0.16)
is included in the JFreeChart distribution. You can obtain the complete
source code for JCommon from:
http://www.jfree.org/jcommon/
JCommon is licensed under the terms of the GNU Lesser General Public Licence.
(c) GNU JAXP (JDK 1.3 only) - a free implementation of the standard XML
processing APIs for Java.
http://www.gnu.org/software/classpathx/jaxp/
Classes in the org.jfree.data.xml package require this library, or
another JAXP v1.1 compliant parser. The gnujaxp.jar file (from the
gnujaxp-1.0beta1.zip distribution) is included with JFreeChart. GNU
JAXP is licensed under the terms of the GNU General Public License
with an additional library exception.
THIS LIBRARY IS ONLY REQUIRED BY JFREECHART IF YOU ARE USING JDK 1.3.
(d) servlet.jar - classes in the org.jfree.chart.servlet
package require this file. The JFreeChart distribution includes the
servlet.jar file distributed with Tomcat 4.1.31. Applicable license
terms are published at:
http://java.sun.com/products/servlet/LICENSE
(e) JUnit - a unit testing framework (the junit.jar runtime file is
included in the distribution). JUnit is licensed under the terms
of the IBM Common Public License. You can find out more about JUnit
and/or download the latest version from:
http://www.junit.org
The JUnit tests included with JFreeChart have been created using JUnit
4.3.1.
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5. SUPPORT
-----------
Support questions can be posted in the free support forum at
http://www.jfree.org/phpBB2/viewforum.php?f=3
We read all questions posted in the forum, and respond to as many as we can
in the time available. Unfortunately, there are too many questions to answer
them all.
Priority support is offered (in a separate forum at www.object-refinery.com) to
companies and institutions that have purchased a site licence for the
JFreeChart Developer Guide.
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6. ANT BUILD SCRIPT
--------------------
An Ant build script (build.xml) is included in the distribution. This
is the same script that is used to create the JFreeChart distribution.
For more information about Ant:
http://ant.apache.org/
If you want to rebuild the JFreeChart jar file, we highly recommend that you
use this script as it includes certain files (for example, .properties files)
that you MUST have in the jar file for JFreeChart to function correctly.
------------------------
7. THE DEMO APPLICATION
------------------------
A demo application that shows a selection of the charts that can be
generated is included in the JFreeChart distribution. To run the
demo (using JDK 1.3.1 or later), use the following command:
java -jar jfreechart-1.0.13-demo.jar
The complete source code for the demo application is available for
download when you purchase the JFreeChart Developer Guide.
The demo application uses iText, a library for creating PDF documents.
iText is licensed under the terms of the GNU Lesser General Public Licence
and is available to download from:
http://www.lowagie.com/iText/
---------------
8. LIMITATIONS
---------------
JFreeChart has some known limitations that will hopefully be addressed in
the future:
- some renderers do not respect the series visibility flags yet;
- the chart property editors (accessible by right-clicking on the chart
panel) are horribly out of date and probably shouldn't be used;
- item labels (if displayed) are not taken into account for the
automatically calculated axis range. As a workaround, you can increase
the axis margins;
- tick labels on a DateAxis that uses a SegmentedTimeline can be
problematic;
- there is no support for writing charts to JPEG format on JDK 1.3. JPEG
is not a good format for charts in any case, and it is usually better to
use PNG format;
- copying charts to the clipboard (supported by the ChartPanel class) will
not work if you are running on a very old version of the Java runtime
(version 1.3.1).
If there are other items that you think should be listed here,
please post a bug report.
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9. WHAT's NEW
--------------
A list of changes in recent versions:
1.0.13 : (17-Apr-2009)
- there are some significant new features in this release, as well
as performance enhancements and bug fixes - see the NEWS and
ChangeLog files for details.
1.0.12 : (31-Dec-2008)
- added support for minor tick marks, mapping datasets to more than
one axis, and numerous bug fixes - see the NEWS and ChangeLog files
for details.
1.0.11 : (18-Sep-2008)
- this release includes a new chart theming mechanism, and numerous
other feature enhancements and bug fixes - see the NEWS and ChangeLog
files for details.
1.0.10 : (8-Jun-2008)
- another general maintenance release - see the NEWS and ChangeLog
files for more details.
1.0.9 : (4-Jan-2008)
- this release fixes a security advisory with respect to the HTML
image maps generated by JFreeChart - see the NEWS file for more
information. In addition, a number of bugs have been fixed.
1.0.8 : (23-Nov-2007)
- primarily a bug fix release. See the NEWS and ChangeLog files for a
more detailed description of the changes in this release.
1.0.7 : (14-Nov-2007)
- See the NEWS and ChangeLog files for a more detailed description of
the changes in this release.
1.0.6 : (15-Jun-2007)
- the VectorRenderer and associated dataset classes have been promoted
to the standard API from the 'experimental' source tree. See the
NEWS and ChangeLog files for a more detailed description of the
changes in this release.
1.0.5 : (23-Mar-2007)
- this release contains a new DeviationRenderer, enhancements to a
number of existing classes and numerous bug fixes, see the NEWS
and ChangeLog files for details.
1.0.4 : (9-Feb-2007)
- this release contains both new features and bug fixes, see the NEWS
and ChangeLog files for details.
1.0.3 : (17-Nov-2006)
- this release contains a new DialPlot class (in 'experimental') that
will hopefully replace the MeterPlot class, once the API has been
polished a little, plus many other new features and bug fixes. See
the NEWS and ChangeLog files for details.
1.0.2 : (25-Aug-2006)
- this release contains both new features and bug fixes, see the NEWS
and ChangeLog files for details.
1.0.1 : (27-Jan-2006)
- primarily a bug fix release, see the NEWS and ChangeLog files for
details.
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;
- see the ChangeLog file for a detailed list of changes.
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.
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.
- see the ChangeLog file for a detailed list of changes in this
release.
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.
- see CHANGELOG.txt for further details.
1.0.0-pre2 : (10-Mar-2005)
- see CHANGELOG.txt for further details.
1.0.0-pre1 : (29-Nov-2004)
- see CHANGELOG.txt for further details.
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.
- see CHANGELOG.txt for further details.
0.9.20 : (7-Jun-2004)
- primarily bug fixes, see CHANGELOG.txt for further details.
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;
- see CHANGELOG.txt for further details.
0.9.18 : (15-Apr-2004)
- new legend anchor options;
- fixed broken JPEG export;
- fixed title size problems;
- various other bug fixes;
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, see the
CHANGELOG.txt file for more details;
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;
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;
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;
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;
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;
0.9.11 : (8-Aug-2003)
- added support for box-and-whisker plots, thanks to David Browning;
- lots of bug fixes;
API changes in this release are minimal and have been implemented using
deprecation, so code written against 0.9.10 should recompile.
0.9.10 : (25-Jul-2003)
- added support for multiple secondary axes, datasets and
renderers;
- minor feature enhancements and bug fixes;
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;
- added new XYDrawableAnnotation class;
- added a new attribute to control the order of dataset rendering in
a CategoryPlot;
- extended the value label mechanism for the renderers, to allow
better (per series) control over label generation, positioning and
visibility;
- CategoryItemTooltipGenerator has been renamed
CategoryItemLabelGenerator, since it is now being used to generated
item labels as well as tooltips;
- there is now support for horizontal stacked 3D bar charts;
- added support for range markers against secondary axis in a
CategoryPlot;
- added labels to domain and range markers;
- added a new HistogramDataset class (contributed by Jelai Wang) to
make it easier to create histograms with JFreeChart;
- moved the DrawingSupplier into the plot class, renderers now
reference the supplier from the plot (parent plot for combined and
overlaid charts). This means that renderers now share a single
DrawingSupplier by default, which simplifies the creation of
combined charts;
- changed the ColorBarAxis classes that extended the NumberAxis class,
to a single ColorBar class that wraps a ValueAxis (may have broken
one or two things in the process);
- Barak Naveh has contributed new classes MatrixSeries and
MatrixSeriesCollection, along with demos: BubblyBubblesDemo.java
and BubblyBubblesDemo2.java;
- the TextTitle class now has a background paint attribute;
- the StandardLegend class now generates LegendEntity objects if a
ChartRenderingInfo instance is supplied to the draw(...) method;
- extended the CategoryTextAnnotation class to take into account a
category anchor point. See the SurveyResultsDemo.java application
for an example;
- included numerous bug fixes;
0.9.8 : (24-Apr-2003)
- changed package naming from com.jrefinery.* to org.jfree.*;
- added new TimePeriodValuesCollection class;
- added MIME type code to ServletUtilities class;
- reversed the order of PieDataset and KeyedValuesDataset in
the class hierarchy;
- reversed the order of CategoryDataset and KeyedValues2DDataset
in the class hierarchy;
- minor bug fixes;
0.9.7 : (11-Apr-2003)
- added a new ValueDataset interface and DefaultValueDataset
class, and changed the CompassPlot class to use this instead
of MeterDataset;
- added DataUtilities class, to support creation of Pareto
charts (new demo included);
- updated writeImageMap method as suggested by Xavier Poinsard
(see Feature Request 688079);
- implemented Serializable for most classes (this is likely to
require further testing);
- incorporated contour plot updates from David M. O'Donnell;
- added new CategoryTextAnnotation and XYLineAnnotation
classes;
- added new HorizontalCategoryAxis3D class contributed by
Klaus Rheinwald;
Bug fixes:
- added a workaround for JVM crash (a JDK bug) in pie charts
with small sections (see bug report 620031);
- fixed minor bug in HorizontalCategoryPlot constructor (see
bug report 702248);
- added code to ensure HorizontalNumberAxis3D is not drawn if
it is not visible (see bug report 702466);
- added small fix for suppressed chart change events (see bug
report 690865);
- added pieIndex parameter to tooltip and URL generators for
pie charts;
- fixed bug in getLastMillisecond() method for the Second
class and the getFirstMillisecond() method for the Year
class (picked up in JUnit tests);
- in TextTitle, changed width used for relative spacing to fix
bug 703050;
0.9.6 : (17-Feb-2003) Bug fixes:
- fixed null pointer exception in DefaultCategoryDataset;
- fixed update problem for PaintTable, StrokeTable and
ShapeTable objects;
- added methods to control colors in PiePlot (these were
inadvertantly removed in the changes made for 0.9.5);
- fixed auto-range update problem for secondary axis;
- fixed missing category labels in the overlaid category plot;
- fixed constructors for symbolic axes;
- corrected error in Javadoc generation (Ant script);
0.9.5 : (6-Feb-2003) PLEASE NOTE THAT MAJOR CHANGES TO THE
JFREECHART API HAVE BEEN MADE IN THIS RELEASE!
- added support for secondary axes, datasets and renderers;
- added new data interfaces (Value, Values, Values2D,
KeyedValues and KeyedValues2D) and incorporated these into
the existing PieDataset and CategoryDataset interfaces.
- modified the CategoryDataset interface to be more
symmetrical, data is organised in rows and columns (as
before) but can now be accessed by row/column index or
row/column key.
- added support for reading PieDatasets and CategoryDatasets
from XML files.
- created separate packages for the axes
(com.jrefinery.chart.axis), plots (com.jrefinery.chart.plot)
and renderers (com.jrefinery.chart.renderer).
- series attributes (paint, outline paint, stroke and shape)
are now controlled by the renderer classes using lookup
tables. Introduced the DrawingSupplier interface (and
DefaultDrawingSupplier class) which is used to populate the
lookup tables from a common source (necessary to coordinate
complex combined charts).
- the chart legend can now display shapes corresponding to
series.
- moved responsibility for category distribution to the
CategoryAxis class, which tidies up the code in the
CategoryPlot classes.
- gridlines are now controlled by the CategoryPlot and XYPlot
classes, not the axes (included in this change is the
addition of gridlines for the CategoryPlot domain values).
- changed the list of titles in the JFreeChart class to a
title and a list of subtitles.
- added new renderers for XYPlot (XYBubbleRenderer and
YIntervalRenderer).
- modified Gantt chart to display sub-tasks.
- added ContourPlot class (still experimental) by David
M. O'Donnell.
- introduced new MovingAverage class.
- ChartMouseEvent now includes source chart.
- numerous bug fixes.
- lots of Javadoc updates.
0.9.4 : (18-Oct-2002) Added a new stacked area chart (contributed by Dan
Rivett) and a compass plot (contributed by Bryan Scott). Updated
the ThermometerPlot class. Added a new XYDotRenderer for scatter
plots. Modified combined and overlaid plots to use the series colors
specified in the sub plot rather than the parent plot (this makes it
easier to align the colors in the legend). Added Regression class
for linear and power regressions. BasicTimeSeries can now
automatically drop "old" data. Some clean-up work in the code for
tooltips and the event listener mechanism. Richard Atkinson has
incorporated some useful extensions for servlets/JSP developers.
Ran Checkstyle and corrected issues reported for most classes.
Checkstyle is a free utility that you can download from:
http://checkstyle.sourceforge.net
Fixed bugs and updated documentation.
API changes include:
- added tickMarkPaint to Axis constructor (also affects
subclasses);
- added getLegendItems() to Plot, and deprecated
getLegendItemLabels();
- added getLegendItem(int) to XYItemRenderer and
CategoryItemRenderer.
- most 'protected' member variables have been changed to
'private'.
0.9.3 : (4-Sep-2002) Added multiple pie charts based on
CategoryDataset. Updated logarithmic axes. Improved URL
support for image map generation. Moved the com.jrefinery.data
package from JCommon to JFreeChart. Added simple framework for
chart annotations. Improved control over renderers. Duplicate
x-values now allowed in XYSeries. Optional category label
skipping in category axes. Added CategoriesPaint attribute to
AbstractCategoryItemRenderer. Added new attributes to
MeterPlot class. Updated 3D pie chart to observe start angle
and direction, and also foreground alpha < 1.0. Improved
Javadoc comments. New demo applications, including:
AnnotationDemo1, EventFrequencyDemo, JDBCCategoryChartDemo,
JDBCPieChartDemo, JDBCXYChartDemo and MinMaxCategoryPlotDemo.
Bug fixes:
- negative percentages on PiePlot.
- added listener notification to setXXXAxis(...) methods.
- fixed DomainInfo method name clash.
- added DomainIsPointsInTime flag to TimeSeriesCollection to
give better control over auto range on axis for time series
charts.
- axis margins for date axes are no longer hard-coded.
- fix for ordering of categories in JdbcCategoryDataset.
- added check for null axis in mouse click handler.
The CVS repository at SourceForge has also been restructured
to match the distribution directory layout.
0.9.2 : (28-Jun-2002) PiePlot now has startAngle and direction
attributes. Added support for image map generation. Added a
new Pie3DPlot class. Added label drawing code to bar
renderers. Added optional range markers to horizontal number
axis. Added bar clipping to avoid PRExceptions in bar
charts. JFreeChartDemo has been modified and now includes
examples of the dial and thermometer plots.
Bug fixes:
- auto range for VerticalNumberAxis when zero is forced to be
included in the range.
- fixed null pointer exception in StackedVerticalBarRenderer3D;
- Added get/set methods for min/max chart drawing dimensions
in ChartPanel;
- HorizontalIntervalBarRenderer now handles single category;
- verticalTickLabels now possible in HorizontalNumberAxis3D;
- removed unnecessary imports;
0.9.1 : (14-Jun-2002) Bug fixes and Javadoc updates.
- fixed auto range calculation for category plots;
- fixed event notification for XYPlot;
- fixed auto axis range for Gantt charts;
- check for null popup menu in ChartPanel.mouseDragged;
- new checks for null info in renderers;
- range markers now drawn only if in visible axis range;
0.9.0 : (7-Jun-2002) New plots including an area chart, a horizontal
3D bar chart, a Gantt chart and a thermometer chart.
Combination plots have been reworked to provide a
simpler framework, and extends to allow category plots to be
combined. There is now a facility to add a ChartMouseListener
to the ChartPanel (formerly JFreeChartPanel). An interactive
zooming feature (experimental at this point) is now available
for XYPlots. A new Polish translation has been added. Several
fixes have been applied to the default tool tip generators. A
workaround has been added to fix the alignment between time
series charts and the date axis. There are some improvements
to the VerticalLogarithmicAxis class, and now a corresponding
HorizontalLogarithmicAxis class. Additional demonstration
applications have been added. Fixed the popup menu bug.
0.8.1 : (5-Apr-2002) Localised resource bundles for French, German and
Spanish languages (thanks to Anthony Boulestreau, Thomas Meier
and Hans-Jurgen Greiner for the translations). An area XY
plot and meter chart contributed by Hari. Symbol charts
contributed by Anthony Boulestreau. An improved
CandleStickRenderer class from Sylvain Vieujot. Updated
servlet code from Bryan Scott. XYItemRenderers now have a
change listener mechanism and therefore do not have to be
immutable. Additional demonstration applications for
individual chart types. Minor bug fixes.
0.8.0 : (22-Mar-2002) All the category plots are now controlled
through the one class (CategoryPlot) with plug-in renderers.
Added a ResourceBundle for user interface items that require
localisation. Added a logarithmic axis class contributed by
Mike Duffy and some new JDBC and servlet code contributed by
Bryan Scott. Updated the JCommon class library to improve
handling of time periods in different time zones.
0.7.4 : (6-Mar-2002) Bug fixes in the JCommon Class Library. Various
Javadoc comment updates. Some minor changes to the
code. Added new domain name (http://www.object-refinery.com)
in the source headers.
0.7.3 : (14-Feb-2002) Bug fixes.
0.7.2 : (8-Feb-2002) Integrated the WindPlot code from Achilleus
Mantzios. Added an optional background image for the
JFreeChart class, and another optional background image for
the Plot class. Added alpha-transparency for the plot
foreground and background. Added new pie chart label types
that show values. Fixed a bug with the legend that results in
a loop at small chart sizes. Added some tooltip methods that
were missing from the previous version. Changed the Insets
class on chart titles to a new Spacer class that will allow
for relative or absolute insets (the plan is to eventually
replace all Insets in the JFreeChart classes). Fixed a bug in
the setAutoRangeIncludesZero method of the NumberAxis class.
Added the instructions that were missing from the copies of
the GNU Lesser General Public Licence included with JFreeChart.
0.7.1 : (25-Jan-2002) Added tooltips, crosshairs and zooming
functions, thanks to Jonathan Nash and Hans-Jurgen Greiner
for contributing the code that these features are based on.
Moved the combination charts into the package
com.jrefinery.chart.combination, made a number of other small
API changes and fixed some bugs. Removed the Javadoc HTML
from the download to save space (you can regenerate it from
the source code if you need it).
0.7.0 : (11-Dec-2001) New combination plots developed by Bill
Kelemen. Added Wolfgang Irler's servlet demo to the standard
download. The About window in the demo application now
includes a list of developers that have contributed to the
project.
0.6.0 : (27-Nov-2001) New plots including scatter plot, stacked bar
charts and 3D bar charts. Improved pie chart. Data
interfaces and classes moved to the JCommon class library.
New properties to control spacing on bar charts. New
auto-tick mechanism. JFreeChartPanel now incorporates
buffering, and popup menu. Javadocs revised. Fixed numerous
bugs from version 0.5.6. Demo application updated.
----------------
10. CONTRIBUTORS
----------------
JFreeChart wouldn't be half the library that it is today without the
contributions (large and small) that have been made by the developers listed
below:
- Eric Alexander
- Richard Atkinson
- David Basten
- David Berry
- Chris Boek
- Zoheb Borbora
- Anthony Boulestreau
- Jeremy Bowman
- Nicolas Brodu
- Jody Brownell
- David Browning
- Soren Caspersen
- Chuanhao Chiu
- Brian Cole
- Pascal Collet
- Martin Cordova
- Paolo Cova
- Greg Darke
- Mike Duffy
- Don Elliott
- Rune Fauske
- Jonathan Gabbai
- Serge V. Grachov
- Daniel Gredler
- Joao Guilherme Del Valle
- Hans-Jurgen Greiner
- Nick Guenther
- Aiman Han
- Cameron Hayne
- Jon Iles
- Wolfgang Irler
- Sergei Ivanov
- Adriaan Joubert
- Darren Jung
- Xun Kang
- Bill Kelemen
- Norbert Kiesel
- Gideon Krause
- Pierre-Marie Le Biot
- Arnaud Lelievre
- Wolfgang Lenhard
- David Li
- Yan Liu
- Tin Luu
- Craig MacFarlane
- Achilleus Mantzios
- Thomas Meier
- Jim Moore
- Jonathan Nash
- Barak Naveh
- David M. O'Donnell
- Krzysztof Paz
- Eric Penfold
- Tomer Peretz
- Xavier Poinsard
- Andrzej Porebski
- Viktor Rajewski
- Eduardo Ramalho
- Michael Rauch
- Cameron Riley
- Klaus Rheinwald
- Dan Rivett
- Scott Sams
- Michel Santos
- Thierry Saura
- Andreas Schneider
- Jean-Luc SCHWAB
- Bryan Scott
- Tobias Selb
- Darshan Shah
- Mofeed Shahin
- Michael Siemer
- Pady Srinivasan
- Greg Steckman
- Roger Studner
- Gerald Struck
- Irv Thomae
- Eric Thomas
- Rich Unger
- Daniel van Enckevort
- Laurence Vanhelsuwe
- Sylvain Vieujot
- Jelai Wang
- Mark Watson
- Alex Weber
- Richard West
- Matthew Wright
- Benoit Xhenseval
- Christian W. Zuckschwerdt
- Hari
- Sam (oldman)
It is possible that I have missed someone on this list, if that
applies to you, please e-mail me.
Dave Gilbert (david.gilbert@object-refinery.com)
JFreeChart Project Leader
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