Drawing a dynamic graph

Question

I have a web application written with JavaServer Faces technology.

The application takes n inputs and provides an output.

I want the following functionality in my application.

I want to have sliders for each of my inputs.

I want the output to be depicted by a graph.

So whenever I change the input values via a slider I want the changed output value also displayed in the graph

So what will be the best way to do this?

score 1 · Answer 1 · edited Dec 29 '09 at 08:24

1

You need two components. One is the slider component which comes with pretty much every component library. Second one is the chart component I believe comes with the PrimeFaces component library. All JavaServer Faces component libraries support Ajax so you could give it a shot.

edited Dec 29 '09 at 08:24

Peter Mortensen

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answered Dec 29 '09 at 07:27

Murat Can ALPAY

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thanks for your suggestion but I am already using the Trinidad and Tobago faces component which does not have a slider. So is there any work around in this case ?? – Anand Sunderraman Dec 29 '09 at 08:45
RichFaces and PrimeFaces both have slider components consider using them. – Murat Can ALPAY Dec 29 '09 at 09:52
But I am not using either of them but infact am using Trinidad and Tobago – Anand Sunderraman Dec 30 '09 at 03:35

score 0 · Answer 2 · edited Dec 29 '09 at 08:19

0

May be you could use the Google Chart API.

edited Dec 29 '09 at 08:19

Peter Mortensen

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answered Dec 29 '09 at 06:13

Thunder

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will give it a shot and get back to you – Anand Sunderraman Dec 29 '09 at 06:42
okay maybe I can use the google api for the graphs.... but what about the sliders how do i code that ?? – Anand Sunderraman Dec 29 '09 at 07:25

score 0 · Answer 3 · answered Dec 29 '09 at 11:27

In one of my projects we had a similar request.

As we where using richfaces we used those components but for the graph drawing we used jGraph, a small 'open source' library.

We chose jGraph as it was the only (not too expensive) library we found that allowed us to layout automatically a graph. (automatic layout is part of a licensed version, not free)

We used the richfaces mediaoutput component to call our backingbean which used jGraph to render a jpg of our graph.

Drawing a dynamic graph

3 Answers3