jfreechart

I'm trying to have two axes on the same data. The data is a couple of DefaultTableXYDatasets . The plot is a XYPlot , and I have two XYLineAndShapeRenderers and one StackedXYAreaRenderer2 . All data is in meters for the y-values, and I want to have one axis displaying it in meters and one axis displaying it in feet. Now this feels like a common thing to do, but I can't decide on the most obvious way to do it. One way that works would be to duplicate the data and have the y-values in feet, then add another NumberAxis and be done with it. But I thought it would be wiser to subclass NumberAxis ,

How can I generate a tooltip on chart mouse over in JFreeChart ? I tried this: chartPanel.setToolTipText("this is the string"); but this does not work. Am I supposed to do something else before? Something like this: chartPanel.createToolTip(). I am calling these methods in the chartMouseMoved event. trashgod Most ChartFactory methods include a boolean tooltips parameter. Just look in the source for your factory of choice to see how to instantiate a default tooltip generator suitable for the designated renderer. You shouldn't need to handle the events yourself. Addendum: As you are using

I have a plot with multiple series of data: I want to be able to pick the series that I want to display. For example, only the 0° and 20° ones. Is there a simple way to do this by manipulating the chart without using JCheckBox ? I want to be able to do this, for example, by clicking on the legend of the series. trashgod As shown here , JCheckBox is more flexible, but clicking directly on the chart may be more convenient. The example below adds a ChartMouseListener that makes a series invisible when clicking on either an XYItemEntity in the series or its LegendItemEntity . Of course, once a

This may sound very basic as a question, but i am stuck in JFreechart use. Let me lay out my problem : I have a CombinedDomainXYPlot to which I add my subplots as and when required. I have used my custom JPopup menu and have included a menu item that is intended to provide user the facility to delete a particular subplot I am assuming that one can find a subplot using findSubplot method of the main plot. I am able to get mouse positions but not able to do anything with PlotRenderingInfo that's required as input. Would appreciate some help. trashgod You can get a List of subplots using

How can this compilable minimal code snippet example, which uses JFreeChart as plotting API, adapted in order to show both absoulte values AND percentages ? I couldn't extract this information neither from any code snippet on the internet nor from the JFreechart manual itself. The code snippet produces a pie chart showing only percentages. The absolute values in my case also matter, so i need to display them right under the percentages. Here is the code: (Note it lacks the imports) public class MyMinimalPieChartExample { public static void main(String[] args) { DefaultPieDataset dataset = new