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I tryed to change the MemoryUsage Chart to take in data that I generate but when I call free.add(new Millisecond(), y); with data I am generating I get an exception saying that I can not add duplicate data and that I already added data at a specified time. Do you know what is going on and how can I ...

I dont necessarily need a scroll bar, i guess a slider would be just as good. My question is more a matter of how would I go about implementing the functionality of being able to view real time data that has already scrolled past the end of the screen. Suppose you have time on the x axis and you are...

Is there some way to add a scroll bar to a real time graph such as the one in the Memory example. In other words as time goes on I want the option to be able to scroll back to look at data from some time ago. How would i go about implementing this???

I am running the Memory Usage example but i get the following errors: "MemoryUsage.java": cannot access org.jfree.ui.Drawable,org.jfree.ui.Drawable it comes from the following line JFreeChart chart = new JFreeChart( "Memory Usage", JFreeChart.DEFAULT_TITLE_FONT, xyplot, true ); ChartPanel chartPanel...