Presenter:

John Johnson –

Professional Services Consultant

Tech Talk No. 15:Chart Customizers

3 Charting Libraries in Jaspersoft

JFreeCharts Fusion Charts (Charts Pro) HighCharts (HTML5)

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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

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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

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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/