Pie Charts

[null_guy]

Elo guys, i'm developing a packet sniffing software! well actually that's mostly complete. I'm trying to implement some reporting tools like piecharts and graphs to show the amount application procotols being used. I need those reports in real time!!

I'm using Chart2D_1.9.6k to implement those reporting tools. I have been able to implement a pie chart. i have created an empty dataset.
The problem is that the state of the pie chart did not change even after data is added to it!! hmmm does it need to be refreshed somehow....!!

Can anyone please help...!!!
Thanks

[Hack]

I found this. Does it help?

[null_guy]

hmmm not much but thanks!!

I have already implemented the pie chart in my GUI, i have already initialized the piechart thorugh its constructor and assigned default values for the different sectors.

Now what i want is to "re-shap" the pie chart as more data comes in.....kinda of refreshing the state of the piechart each time an info is added.!!

Can anyone HEEEEEEEEEEEEEEElp please.....!!!!

[null_guy]

Hey guys, i'm using JFree_graph to implement a graph.
i have modified the original soucre code to implement a thread and eventually got errors.

Can anyone take a look at the above code please!!!
thanks!

[Hack]

That is just a whole lotta code to go through.

What errors did you get and what lines of code caused the errors?

[null_guy]

The error

Entering Thread
Now = Wed Mar 12 14:58:16 EET 2008
Entering Thread
Now = Wed Mar 12 14:58:17 EET 2008
Entering Thread
Now = Wed Mar 12 14:58:17 EET 2008

Exception in thread "Thread-2" org.jfree.data.general.SeriesException: You are attempting to add an observation for the time period Wed Mar 12 14:58:17 EET 2008 but the series already contains an observation for that time period. Duplicates are not permitted. Try using the addOrUpdate() method.
at org.jfree.data.time.TimeSeries.add(TimeSeries.java:497)
at org.jfree.data.time.TimeSeries.add(TimeSeries.java:526)
at newGraph.captureData(newGraph.java:162)
at newGraph$1.run(newGraph.java:187)
at java.lang.Thread.run(Unknown Source)

Some points(3 points) have been plotted then the error occurs as shown above.

The error occurs at line 162.
series.add(new Millisecond(), lastValue);

[Hack]

You are attempting to add an observation for the time period Wed Mar 12 14:58:17 EET 2008 but the series already contains an observation for that time period. Duplicates are not permitted.

If you don't add duplicates does it work?

[null_guy]

hmmmm nop! no duplication at all!!!
I have been able to solve the problem by using another method!!

Thanks for the help!!

[Hack]

hmmmm nop! no duplication at all!!!
I have been able to solve the problem by using another method!!

Thanks for the help!!

Please post what you did as it could help someone else with the same or similiar problem.

Thanks.

[null_guy]

Instead of series.add(new Millisecond(), lastValue);

i have replaced the add method with addOrUpdate :
series.addOrUpdate(new Millisecond(), lastValue);

and when the thread starts to run... the graph is plotted with no errors!!!!

[Hack]

Thank you null_guy. As I said, hopefully others will find your solution beneficial.