XML data visualization

What type of structure would I need开发者_高级运维 to create charts like the following?

http://www.axiis.org/examples.html

If you could provide me with a link to an xml file which shows the type of structure that would be great.

Thanks

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XML is just a way to store data. What you need is a visualization engine that can interpret your data.

With regard to "what structure": Totally depends on what you want to visualize. I think you're starting at the wrong end.

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It really depends on the framework/visualization engine you use to create the graphs.

The data is probably represented as a set of series that have entries that consists of categories and labels.

The XML-data used in Axiis examples can be found their Google Code repository

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You could to click Source below your desired sample and to browse for data folder on the left frame. There are many xml samples in there, like 2008_Olympics_Large.xml