Generating graphs/diagrams

Does anyone have a good tip on how to generate a diagram/chart/graph over a database table? Do I need some extra program or are there allready something that I can use?
Very grateful for tips / Daniel

Hi
There are some methods in order to send 2d graphics :
a) generate at server level an image and send it to client. There are some sambles at Core servlets book from Sun press (the idea is obtain a grapphics object and encode to jpg etc)
b) use the SVG spec. SVG is a XML gramar to 2D graphics. You have an api from jakarta : Batic. I used SVG not only to send graphs but also cartographic information. It is a standar declared by w3. There are some site where you can learn SVG : w3, adobe and so on. You need, at this moment, some plugin like Adobe or Corel. The grapphic is interactive and via dom you can modify, add events and so on. Next releases of browsers will implement (native) the spec.
c) use of flash. It is not standard. I can't say none because i can't use.
Hope this helps

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