Jaspersoft Tech Talk Episode #15: Chart Customizers
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Presenter: John Johnson – Professional Services Consultant Tech Talk No. 15: Chart Customizers
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Need to customize a JFreeCharts beyond what is exposed in iReport? This tech talk is about customizing JFreeCharts by implementing a Chart Customizer in Java. Intended audience is Java developers looking to quickly get started customizing charts. For more information, join the Jaspersoft Customer and Developer community: http://community.jaspersoft.com See the video of the presentations here: http://www.youtube.com/watch?v=kjGQ5hlg__k
Transcript of Jaspersoft Tech Talk Episode #15: Chart Customizers
Presenter:
John Johnson –
Professional Services Consultant
Tech Talk No. 15:Chart Customizers
3 Charting Libraries in Jaspersoft
JFreeCharts Fusion Charts (Charts Pro) HighCharts (HTML5)
©2012 Jaspersoft Corporation. Proprietary and Confidential 2
Chart Themes
Give a set of charts/graphs a common look and feel Defined in an external file (*.jrctx which becomes .jar file) iReport offers its own designer for creating a theme
Template Inspector Designer Properties Chart Selector
©2013 Jaspersoft Corporation. Proprietary and Confidential
Chart Customizers
When chart themes and properties aren’t enough we can customize the JFreeCharts class libraries through Java code
Examples: Colouring specific bars Hiding bars Width of bars Complex changes to chart display Complex logic Add trend lines
©2012 Jaspersoft Corporation. Proprietary and Confidential 4
Write a Customizer class
Write class that implements Interface JRChartCustomizer
Package new class in jar file Set Customizer Class Property Put jar on iReports classpath or in resource section on
server
Resources
iReport Ultimate Guide http://jasperreports.sourceforge.net/api http://www.jfree.org/jfreechart/api/javadoc/
