www.jfree.org

HI
Dear Grav

thank you , your way is good:)

hi

thank you

can you post a demo about two response one is for html the other is for chart in jsp /servlet

hi richard

first thank you very much , after saw your WAR demo , i think that your

way is right , but i think if we save a chart into a tmp directoy, our web

application's performance is badly, when the most clients access web

server, i think that access disk is not a good idea, is't it?

hi please try do it like this /** *this class file for create your chart */ package helloservlet; import java.io.*; import org.jfree.chart.*; import org.jfree.data.*; public class myDemoChart { public myDemoChart() { } private DefaultPieDataset getDataSet() { DefaultPieDataset dataset = new DefaultP...

i hope it can bring a lot of help for you /** *this class file for create your chart */ package helloservlet; import java.io.*; import org.jfree.chart.*; import org.jfree.data.*; public class myDemoChart { public myDemoChart() { } private DefaultPieDataset getDataSet() { DefaultPieDataset dataset = ...

1.by JDBC get the data from your database (like mysql, sqlserver ...). 2.you may code a javabean to make a jfreechart object and make a public method like following ...................... public void drawMyChart( OutputStream x ) { ..... JFreeChart chart = ............ ChartUtilities.writeChartAsJPE...

Hi

please check your classpath if it not be setted, do like this
# export classpath = /opt/jfreechart/xxx(your install paht);

Hi David I have download the latest jfreechart that jcommon-0.9.1.zip and jfreechart-0.9.16 After test but the same error still has occurred. It is very bizarrerie. The JfreeChart Object(only by ChartFactory.createTimeSeriesChart(…) made) as the EJB Remote method result type (such as public JfreeCha...

Hi David

That is no problem

I will test code about TimeSeriesCollection, if you think the problem has be fixed! please
tell me , i will test

thank you

Hi David: Thank you J About EJB remote interface you said is good! In fact it is serialized and deserialized.if I code it Into a standalone app(like the ones in org.jfree.chart.demo),it is very good! Following is my EJB code ………………… private DefaultPieDataset getMyPieData() { DefaultPieDataset datase...

hi everyone i encounted a problem, it may be a bug of jfreechart :-( my environment list: os windows2000 ejb(jboss server) + jsp(tomcat server) i create a jfreechart that is a pie chart ,by ejb remote inteface poss it to jsp ,then display on IE it is ok! but when i create a jfreechart that is a Time...

Mr.David

thank you very much!!

hi
everyone i am using jfreechart first,who will tell me
the line chart's date that how to create ??

thanks