FusionCharts has a completely free version based on Adobe Flash.
It has 22 free graph types in total one for generating Gantt charts. The input is XML so fully compatible with Rails’ respond_to / xml builder mechanism.
Embedding any chart into a view is such easy:
1 2 3 4 5 6 7 | <div id="GanttChart"></div> <script type="text/javascript"> var activity = new FusionCharts("/flash/fusioncharts/FCF_Gantt.swf", "GanttChart", "800", "400", "0", "0"); activity.setDataURL("/flash/fusioncharts/Data.xml"); activity.render("GanttChart"); </script> |
