RE: [jCharts-users] problem in pie2dchart

[Malleswara R. B <bnm...@ya...>]

the following is the code I have written

<%@ page import="java.awt.*,java.io.*,org.jCharts.*,org.jCharts.nonAxisChart.PieChart2D,org.jCharts.chartData.*,org.jCharts.properties.*,org.jCharts.types.ChartType,org.jCharts.axisChart.*,org.jCharts.test.TestDataGenerator,org.jCharts.encoders.JPEGEncoder13,org.jCharts.properties.util.ChartFont,

org.jCharts.encoders.*"%>

 

<%!

PieChart2DProperties properties= new PieChart2DProperties();

LegendProperties legendProperties=new LegendProperties();

ChartProperties chartProperties = new ChartProperties();

int width = 550;

int height = 350;

 

 

legendProperties.setNumColumns( 2 );

legendProperties.setPlacement( LegendProperties.LEFT );

chartProperties 

try

{

PieChart2D pieChart2D = new PieChart2D( getData(), legendProperties, this.chartProperties, width, height );

ServletEncoderHelper.encodeJPEG13( pieChart2D, 1.0f, response );

}

catch( Throwable throwable )

{

//HACK do your error handling here...

throwable.printStackTrace();

}



%>

<%! 

private PieChartDataSet getData() throws ChartDataException

{

double[] data = new double[]{40, 15, 35, 65, 59};

Paint[] paints = new Paint[]{Color.blue, Color.red, Color.green, Color.yellow, Color.white};

String[] labels = {"Maruti", "Opel", "santro", "indica", "premier"};

return new PieChartDataSet( "Cars That Own!", data, labels, paints, this.properties );

}

%>

 


Vikram Rajan <Vi...@PL...> wrote:
Can you give us some code sample to understand the problem better? This normally happens when you try to use the <jsp:forward> or <jsp:include> tags after sending some information to the client.
 
Vikram
-----Original Message-----
From: Malleswara Reddy B [mailto:bnm...@ya...]
Sent: Friday, August 01, 2003 9:40 AM
To: jch...@li...
Subject: [jCharts-users] problem in pie2dchart


I need to generate pie2d chart for a dynamic data .the problems now I am facing is 
 
1)if I put the code in jsp though chart is generated fine. its givving exception saying "response already started" .if I generate chart with a servlet I have no problems.
 
any help to solve this is appreciated
 
thanks
mallesh




B.NagamalleswaraReddy
Member-Technical
ADPWilco(India) Pvt Ltd 

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B.NagamalleswaraReddy
Member-Technical
ADPWilco(India) Pvt Ltd

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