By dave | June 30, 2012

Groovychart is a library hosted on that wraps the functionality available in JFreeChart for use as a groovy builder. Currently it is available in snapshot form but hopefully time permitting, a full build will follow soon.

I really like groovy as a scripting language, it's great for writing simple UI's for displaying graphical data from many sources including XML and the database. This article helps you set up and get started with groovychart.

Firstly ensure that you have an appropriate version of both Groovy and Java.

[dave@titan groovychart-131116-snap]$ groovy -version
Groovy Version: 2.1.8 JVM: 1.7.0_45 Vendor: Oracle Corporation OS: Linux

Now you'll need to download the latest version of groovychart from the groovychart website in the downloads area, or if you prefer built from source by following the subversion link.

Once you have the groovychart distribution unzipped you'll have a directory structure similar to the following:

|-- examples
|   |-- AreaChart.groovy
|   |-- BarChartAsPNGDemo.groovy
|   |-- BmiChartStandard.groovy
|   |-- CandlestickDemo.groovy
|   |-- PieChartDemo.groovy
|   `-- TimeSeriesChart.groovy
|-- lib
|   |-- groovychart-131116-snap.jar
|   |-- jcommon-1.0.16.jar
|   |-- jfreechart-1.0.13.jar
|   |-- licence-LGPL.txt
|   |-- README-GroovyChart.txt
|   `-- README-JFreeChart.txt
|-- README.txt
`-- src

Change into the examples directory and run the following command (replace [version] with your version of the groovychart package:

[dave@titan examples]$ groovy -classpath ../lib/jfreechart-1.0.13.jar:../lib/jcommon-1.0.16.jar:../lib/groovychart-[version]-snap.jar AreaChart.groovy 

This will result in a window containing a graph:

area chart from groovychart

Here is the source for that example:

import com.thecoderscorner.groovychart.chart.ChartBuilder
import groovy.swing.SwingBuilder
import java.awt.BorderLayout
import java.awt.Dimension
import org.jfree.chart.ChartPanel
import org.jfree.chart.plot.PlotOrientation
import java.awt.Color
import org.jfree.chart.plot.CategoryPlot

java.sql.Connection conn = null

ChartBuilder builder = new ChartBuilder();
def areachart = builder.areaChart(title:'This is a title', 
) {
    //jdbcCategoryDataset(conn:conn, transpose:false) {
    //jdbcCategoryDataset(url:'', driverName:'', user:'scott', passwd:'tiger', transpose:false){
    //     query('select foo from bar')

        addValue(1.0, row:'Series 1', column:'Type 1')
        addValue(4.0, row:'Series 1', column:'Type 2')
        addValue(3.0, row:'Series 1', column:'Type 3')
        addValue(5.0, row:'Series 1', column:'Type 4')
        addValue(5.0, row:'Series 1', column:'Type 5')
        addValue(7.0, row:'Series 1', column:'Type 6')
        addValue(7.0, row:'Series 1', column:'Type 7')
        addValue(8.0, row:'Series 1', column:'Type 8')
        addValue(5.0, row:'Series 2', column:'Type 1')
        addValue(7.0, row:'Series 2', column:'Type 2')
        addValue(6.0, row:'Series 2', column:'Type 3')
        addValue(8.0, row:'Series 2', column:'Type 4')
        addValue(4.0, row:'Series 2', column:'Type 5')
        addValue(4.0, row:'Series 2', column:'Type 6')
        addValue(2.0, row:'Series 2', column:'Type 7')
        addValue(1.0, row:'Series 2', column:'Type 8')
        addValue(4.0, row:'Series 3', column:'Type 1')
        addValue(3.0, row:'Series 3', column:'Type 2')
        addValue(2.0, row:'Series 3', column:'Type 3')
        addValue(3.0, row:'Series 3', column:'Type 4')
        addValue(6.0, row:'Series 3', column:'Type 5')
        addValue(3.0, row:'Series 3', column:'Type 6')
        addValue(4.0, row:'Series 3', column:'Type 7')
        addValue(3.0, row:'Series 3', column:'Type 8')


    categoryplot {
        foregroundAlpha 0.7

        renderer {
            seriesPaint(0, paint:new Color(255, 0, 0));
            seriesPaint(1, paint:new Color(0, 255, 0));
            seriesPaint(2, paint:new Color(0, 0, 255));

def chartPanel = new ChartPanel(areachart.chart, false);
chartPanel.setPreferredSize(new Dimension(1000, 500));
chartPanel.setMouseZoomable(true, false);

SwingBuilder swing = new SwingBuilder();

def frame = swing.frame(
            title:'This is a Frame',

frame.getContentPane().setLayout(new BorderLayout());
frame.getContentPane().add( chartPanel, java.awt.BorderLayout.CENTER);

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