See the main page for usage, download and installation instructions.
Introduction#
JFreeChart is a free Java class library for
generating charts. It is used by many top open source projects including
StatCvs
and JBoss
.
JFreeChart Plugins#
Package: org.nascif.jspwiki.plugin.imagegen.jfreechart
- BarChartPlugin
- BubbleChartPlugin
- GanttChartPlugin
- LineChartPlugin
- MultiplePieChartPlugin
- PieChartPlugin
- PolarChartPlugin
- ScatterPlotChartPlugin
- SpiderWebChartPlugin
- StackedBarChart
- StackedXYAreaChartPlugin
- TimeSeriesChartPlugin
- WaterfallChartPlugin
- XYAreaChartPlugin
- XYLineChartPlugin
- XYStepAreaChartPlugin
- XYStepChartPlugin
JFreeChart Syntax #
The syntax used to describe JFreeChart data is a simple extension of the standard comma-separated-values (CSV) format. In general, you can define a chart just by providing its data as a list of CSV lines. For example:
Testing, 10, 34, 56 Implementation, 23, 55, 66 'Usability study', 12, 45, 5
The wiki markup syntax is also supported; table headers are ignored.
Some charts also use data information to name data series or categories; in that case the data will be nested, which is indicated by prefixing it with one or more '*'. For example:
Coding * 'Design', 3-2001, 4-2001, 0.7 * 'Implementation', 4-2001, 6-2001, 0 ** 'First task', 4-2001, 5-2001, 0 ** 'Second task', 5-2001, 6-2001, 0.4 Testing * 'Test1', 5-2001, 6-2001, 0.1 * 'Test2', 6-2001, 7-2001, 0.3 * 'Test3', 7-2001, 7-2001, 0.8
You may also need to specify metadata information to introduce column names
and types (if non-numeric). A metadata definition is a line that starts with
':'. It is also read as a CSV line: each value specifies a column and values are
separated by ','. A column definition is a name, followed by an optional '|',
followed by a type indicator - one of "String", "Number" (the default) or a time
period name ("Year", "Quarter", "Month", "Week", "Day", "Hour", "Minute" or
"Millisecond"). Time periods may in turn be followed by a date format string as
defined in the Java SimpleDateFormat. For example:
:Country|String, V1, V2, V3 France, 13, 15, 26 :Date|Day|MM/dd/yyyy,Alert,High,Medium,Low 02/01/2006,0, 3, 6, 13 02/02/2006,0, 3, 6, 10 02/03/2006,0, 5, 9, 11
See the plugin pages for specific examples.