JFreeChart support for animated charts

[archana_pawar]

Is it possible to generate animated charts using JFreeChart?

[david.gilbert]

Yes, subject to one proviso. Every time you update a dataset belonging to a chart, it triggers a sequence of events that results in the ChartPanel being repainted. If you update the dataset frequently (5 times per second, say) the chart will appear to be "animated". The proviso is that each update causes a complete redraw of the chart (not just the part that has changed), so the performance may or may not be acceptable (there are lots of variables, so you should test your own scenario(s)).

[lucky7456969]

Yes, subject to one proviso. Every time you update a dataset belonging to a chart, it triggers a sequence of events that results in the ChartPanel being repainted. If you update the dataset frequently (5 times per second, say) the chart will appear to be "animated". The proviso is that each update causes a complete redraw of the chart (not just the part that has changed), so the performance may or may not be acceptable (there are lots of variables, so you should test your own scenario(s)).

How do we get a fly-in simulation by portions of the chart? like powerpoint
Thanks
Jack

[John Matthews]

I use javax.swing.Timer to animate a dataset, but I've never tried to go over 10 Hz. I'm guessing one of the Annotations would work for a fly-in. This example, running at 20 Hz, uses a damped spring model to mimic deceleration.

[lucky7456969]

I changed to

Code: Select all

   chart.addProgressListener(new ChartProgressListener() {
            private boolean animate = true;
            public void chartProgress(final ChartProgressEvent event) {
                if (event.getType() == ChartProgressEvent.DRAWING_FINISHED  ) {
                //System.out.println("Event working");
                if ( animate ) {
                     
               }
            }
         }            
       });

Which properties control the x,y corners coordinates of the sectors? So is the annotations stuff, how do I control it?

Is there pie chart version of this?
http://www.jfree.org/phpBB2/viewtopic.php?f=3&t=24570
Thanks
Jack