How to create charts in Drupal while working offline that integrate with the Quiz module? I'm now working on a local offline network website, which needs a graphical chart report for their quiz. But since it's offline I cannot use the (interactive) Google Charts API as a charting engine.

I tried FusionCharts already for the Webform Report module, but it has no integration with Quiz.

Any suggestions would be great.
You can use Flot since it has views integration as Quiz.
Flot can be used offline while Google charts can't because of their TOS.