Looking for an interactive pie chart to use with GWT (without extern comminication)?

Question

I'm looking for a stand-alone Pie Chart which I can use in a GWT application. The Chart should be interactive, so that I can react on user input (read mouse clicks on the chart).

I've already looked at Google Chart Tools with GWT Visualization. This is exactly what I want. A simple to use PieChart class with user interaction and a simple and comprehensive data input. Except that the data is transfered to Google for the rendering part. The data should not leave the client or our server.

Answer 1

Have you tried Fusion Charts? Here's the Pie Chart showcase. Its a Flash object hence you will need to use JSNI to embed the object into your widget or use a library like GWT2SWF to do it for you.

I have used Fusion Charts + GWT2SWF combination in one of my products, and would recommend it to anyone looking for a interactive flash charting tool (outside of google's toolset)

Answer 2

A colleague of mine found following library: GChart. Rather then using Flash we'll try to draw our own. Not sure how easy this will be.