Recently I needed a flexible chart tool in order to create complicated Gantt chart with 2 layers containing timelines, one layer containing milestones and some links for the Y axis labels. After some research I came across two tools - one generating Flash charts and one generating image charts. Below I’ll describe shortly my experience with both of them.
This tool generates image charts of different types. You can view the image gallery and find the proper one for you. There are examples for each chart. Also it’s easy to get used to the API. The thing I like most is the support forum. There I found the solutions to all the problems I had.
Fusion Charts Instrumentation Suite
This tool generates very good Flash charts. You can preview the charts gallery. It’s easy to use and customize the charts. My problem there was that there was not support for ALT text for milestones which was important functionality I needed to implement. But in spite of this I like it very much. The support team told that this functionality will be included in the new version of the tool.
Of course there are other chart tools out there but I experiment with those two ones only.
Feel free to share your experience with those and other chart components/tools in a comment.chart, gantt chart tools