chart displaying

[2005 IR Help]

By: ann - ann04

chart displaying

2004-10-18 11:05

Hello...

I have a problem displaying a chart from my report. When I run FillReport, the file gets created but the chart image is not there, Please Help!

Here is what I have:

 

public static void main(String[] args) throws JRScriptletException{

try{JasperReport jasperReport = (JasperReport)JRLoader.loadObject("myFile.jasper");

parameters.put("Chart",createEmployeeChartImage());

conn = DriverManager.getConnection(url, "123", "123r");

JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, conn);

}//try

 

catch(Exception e){

 

e.printStackTrace();}

 

 

 

}

 

 

private static java.awt.Image createEmployeeChartImage(){

//public void afterReportInit() throws JRScriptletException{

 

 

DefaultPieDataset dataset = new DefaultPieDataset();

dataset.setValue("Olga1", new Double(43.2));

dataset.setValue("Olga2", new Double(10.0));

dataset.setValue("C/C++", new Double(17.5));

dataset.setValue("PHP", new Double(32.5));

dataset.setValue("Python", new Double(1.0));

 

JFreeChart chart =

ChartFactory.createPieChart3D(

"Pie Chart 3D Demo 1",

dataset,

true,

true,

false

);

 

PiePlot3D plot = (PiePlot3D) chart.getPlot();

plot.setStartAngle(290);

//plot.setDirection(Rotation.CLOCKWISE);

plot.setForegroundAlpha(0.5f);

plot.setNoDataMessage("No data to display");

return chart.createBufferedImage(500, 220);}

}

 

What is the correct stmt to draw the chart??

chart.createBufferedImage(500, 220) creates the image, then why I cannot see it?

 

Thank you

 

 

 

 

By: ann - ann04

RE: chart displaying

2004-10-18 12:13

Nevermind,

 

Got it solved!

 

 

 

 

By: odc - sameena

RE: chart displaying

2004-10-20 02:07

hi ann04

i have the same problem can u tell me how u solved it.my code is just like urs.

when i export the report into a pdf a blank pdf page is generated on the browser

 

thks in advance

 

 

 

 

 

By: ann - ann04

RE: chart displaying

2004-10-21 12:44

Hello,

It might be many reasons, but in my case i was looking for a problem in my jsp, when indeed the problem was with the xml file. I called my "chart" image as variable, instead of parameter. When I changed it, the picture showed up in the report.

Good luck!