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Bar chart problem

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By: casey - fckoffdude

Bar chart problem

2006-01-05 08:11

I have a bar chart with 15 categories with 1 series in each category. No matter how big I make the chart, the bar widths remain very small. I have set the axis margins and category margin to 0. I also set the item margin to 0. Nothing helps. I am starting to wonder if jasper modifies the chart renderer again after it calls the chart customizer class thus changing my settings.


Has anyone had this same problem? Can anyone help me.


My chart customizer code appears like this:


CategoryPlot plot = (CategoryPlot) chart.getCategoryPlot();

BarRenderer renderer = (BarRenderer) plot.getRenderer();

CategoryAxis axis = (CategoryAxis) plot.getDomainAxis();

NumberAxis yaxis = (NumberAxis) plot.getRangeAxis();


axis.setTickLabelFont(new Font("SansSerif", Font.PLAIN, 6));

axis.setLabelFont(new Font("SansSerif", Font.PLAIN, 6));

renderer.setItemLabelFont(new Font("SansSerif", Font.PLAIN, 6));


yaxis.setRange(0.0, 100.0);






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This is Atanu. I am very new in ireport and also in java environment. In the ireport I have designed a template .like this.

please look on attach file

size=150C:Documents and SettingsAtanuMy Documentsgraph.jpeg[/img]

Now I want to plot a line graph on the basis of the each data like t1 t2 ---t5 and lcl, ucl, actual value for each row.

That I have done. Now my problem is that I have to change the color of points of t1 t2 ---t5 on the basis of Lcl and Ucl . If the value of t1 ,or t2 or ----t5 are between Ucl and Lcl the color will be blue. And if it out side of Lcl and Ucl then it will be red..

I want the following figure. Where the upper bold line is Ucl and lower bold line isLcl

size=150C:Documents and SettingsAtanuMy Documentsdata.jpeg[/img]

Actually I have got a information that for that I have to write a customizer class for chart. Also I have write it .



import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.view.JasperViewer;
import net.sf.jasperreports.engine.JREmptyDataSource;
import java.util.*;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;
import net.sf.jasperreports.engine.JRAbstractChartCustomizer;
import javax.sql.*;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.*;
import org.jfree.chart.renderer.*;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.LevelRenderer;
import org.jfree.chart.renderer.category.LayeredBarRenderer;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Connection;
import java.util.HashMap;
import java.util.Map;
import java.lang.String;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.view.JasperViewer;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.JRChartDataset;
import net.sf.jasperreports.engine.JRChartPlot;
import org.jfree.chart.renderer.category.BarRenderer3D;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.axis.CategoryLabelPositions;

import org.jfree.chart.renderer.category.LineRenderer3D;
import java.awt.*;
import net.sf.jasperreports.engine.JRChart;
import net.sf.jasperreports.engine.JRChartCustomizer;
import org.jfree.chart.JFreeChart;
import net.sf.jasperreports.engine.*;
import java.awt.Color;
import net.sf.jasperreports.engine.JRChart;
import net.sf.jasperreports.engine.JRChartCustomizer;

import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.BarRenderer3D;
import java.lang.Object;

public class LineChartCustomizer extends JRAbstractChartCustomizer {

public void customize(JFreeChart chart, JRChart jasperChart) {

LineAndShapeRenderer renderer = (LineAndShapeRenderer) chart.getCategoryPlot().getRenderer();

renderer.setSeriesPaint(1, Color.green);
renderer.setSeriesPaint(4, Color.orange);

chart.setTitle("Setting the title "«»);


Now this customize class ok running successfully with creating jar files.

Now I want to create a logic to check the value of t1 t2 t3 t5 with respect to UCL and LCL. How can I fetch data from report.

Or is there any other way to do this.

Is there any way to pass value from iReport to customizer class ?


What should I do. Please please help me. It’s urget for me.


Any help would be greatly appreciated.

Thanks in advance.

[file name=query-37ab101e3a539a71be9c962f72749d92.doc size=49152]http://www.jasperforge.org/components/com_joomlaboard/uploaded/files/query-37ab101e3a539a71be9c962f72749d92.doc[/file]

[file name=query-4aa4b6a72bb031c3b43d6f4a203d1d2a.doc size=49152]http://www.jasperforge.org/components/com_joomlaboard/uploaded/files/query-4aa4b6a72bb031c3b43d6f4a203d1d2a.doc[/file]

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