I'm trying to allow my users to drill down into a chart. For example, I would to initially show a chart with 4 options. The user clicks on one of the options which hightlights the option, the graph gets bigger, and a sub chart shows in the middle of the doughtnut with the options related to the initial selection. I would like to have several levels of charts...
Here is a sample of close to what I'm looking for... I would only want to show the sub items of what was selected inside the chart. (remove this if I can't point to a competitor...)http://www.dundas.com/Components/Gallery/Flash/Chart/PieDoughnut/index.aspx