displaying relational data

[devnull]

I know this is not specificially an Ext question, but I am having a hard time with this and would appreciate hearing of anyone elses experiences.
I am looking for a way to display relational data, preferably in a flowchart-like visual graph. I would prefer to do it client-side (using canvas or dhtml techniques) but would also be ok with generating an image in php on the server. The Ext tree would almost work, except it needs to be able to deal with circular dependancies.
If it can be done in javascript, then I would attempt to roll it into an Ext extension and feed it with json.
If it helps any, I am specifically looking to graph call flow paths through a PBX phone system.

[jay@moduscreate.com]

There have been some flash tools i've seen. I have a need for this too, working on displaying data from an enterprise configuration management tool (HP's uCMDB). I did some light footwork a while back, but I forget what the package was called. :(

Could you please post if you find anything?

thank you :)

[esra]

Adobe released a Javascript API for developing rich multimedia applications for Adobe Acrobat (PDF files). The user would of course have to have Acrobat Reader installed, but it's possible to redirect the user to the Adobe site for a download if Acrobat Reader is not installed. The other advantage of going this route is using it as a standalone solution for non-web, in-house training. I have not used this myself, but have done a lot of multimedia development in the past. The API seems powerful.

http://www.adobe.com/devnet/acrobat/pdfs/AcroJS-MM.pdf

[devnull]

That seems interesting, I will look into it.
One other thing I had forgotten to include is the possibility of doing something like this with flash. But I would have no idea where to even start, since I have never done anything with flash.