You can add new values to the XYSeries using one of the available add() methods, as shown in this example. If you’re getting adventitious rows, you’ll need to post an sscce. Addendum: Looking more closely at the (recently updated) genesis of your example, some confusion is understandable: no array is needed at all. The example … Read more
You’ll have to combine several approaches: Panning controls: Invoke, setDomainPannable(true) to enable panning; in your controls, use panDomainAxes(), as shown in the implementation of mouseDragged(); use the mouse as suggested here. Zooming: Zooming by dragging on the axis is not supported, but dragging on the plot is supported; drag right to see the selection rectangle. … Read more
I am able to reproduce the effect described. As before, the effect is seen only with a SegmentedTimeline; it is not apparent with the DefaultTimeline. It appears to co-incide with dragging across the “hidden” weekends of a monday-through-friday-timeline, but I don’t see an obvious bug. One workaround might be to let the user choose the … Read more
As shown in How to Use Tabbed Panes, you can add components to a tabbed pane. ChartPanel, a subclass of JPanel, is such a component. In addition to these examples, you can use the example below to experiment with other features. As you are new, limit using the NetBeans GUI editor, implied in your question, … Read more
The StandardXYItemLabelGenerator should work; there’s an example here. Addendum: The labels you can see in the picture are in a separate string array. Such labels may be incorporated in the XYDataset, as shown in LabeledXYDataset below. Because none of the features of StandardXYItemLabelGenerator are used, a custom implementation of XYItemLabelGenerator is sufficient. The XYItemRenderer controls … Read more
The example below uses several techniques to create an RGB histogram of an arbitrary image: The Raster method getSamples() extracts the values of each color band from the BufferedImage. The HistogramDataset method addSeries() adds each band’s counts to the dataset. A StandardXYBarPainter replaces the ChartFactory default, as shown here. A custom DefaultDrawingSupplier supplies the color … Read more
You may be looking for setSubrangePaint(), demonstrated below. import java.awt.Color; import java.awt.EventQueue; import java.awt.GridLayout; import javax.swing.JFrame; import javax.swing.JPanel; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.ThermometerPlot; import org.jfree.data.general.DefaultValueDataset; /** @see http://stackoverflow.com/questions/7597015 */ public class ThermometerDemo extends JPanel { private static final int W = 200; private static final int H = 2 * W; public ThermometerDemo(double value) … Read more
The JFreeChart class DynamicTimeSeriesCollection is a good choice. Addendum: As noted by @Bahadır, the last point of the series was persistently zero. @Don helpfully suggests advancing the time and then appending the data. dataset.advanceTime(); dataset.appendData(newData); import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Random; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JPanel; import javax.swing.Timer; … Read more
Your exemplary renderer has the correct geometry when run from Swing, as shown below. I’m unsure why things are awry with SWT, but this result may narrow the search. import java.awt.Color; import java.awt.EventQueue; import java.awt.Paint; import java.util.Random; import javax.swing.JFrame; import org.jfree.chart.ChartMouseEvent; import org.jfree.chart.ChartMouseListener; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.DateTickMarkPosition; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.entity.ChartEntity; … Read more
As suggested here, a custom renderer can query the model to condition the result returned by getItemPaint(). In this example, subtasks are rendered using a palette of varying saturations of the default color for a given series. The approach assumes that the renderer makes two passes; some care should be given to documenting the dependency. … Read more