Example usage for org.jfree.data.xy XYIntervalSeries getDataItem

Introduction

In this page you can find the example usage for org.jfree.data.xy XYIntervalSeries getDataItem.

Prototype

@Override
public ComparableObjectItem getDataItem(int index) 

Source Link

Document

Returns the data item at the specified index.

Usage

From source file:it.cnr.istc.iloc.gui.TimelinesChart.java

public TimelinesChart() {
    super(CHART);
    setBorder(null);//w w  w.  jav a2s  .  c  o  m

    addTimelineVisualizer(new StateVariableVisualizer());

    addChartMouseListener(new ChartMouseListener() {
        private Object getDataItem(ChartEntity entity) {
            XYItemEntity e = ((XYItemEntity) entity);
            XYDataset ds = e.getDataset();
            if (ds instanceof XYIntervalSeriesCollection) {
                XYIntervalSeries theSerie = ((XYIntervalSeriesCollection) ds).getSeries(e.getSeriesIndex());
                return theSerie.getDataItem(e.getItem());
            } else if (ds instanceof XYSeriesCollection) {
                XYSeries theSerie = ((XYSeriesCollection) ds).getSeries(e.getSeriesIndex());
                return theSerie.getDataItem(e.getItem());
            } else {
                return null;
            }
        }

        @Override
        public void chartMouseClicked(ChartMouseEvent cme) {
            if (cme.getEntity() != null && cme.getEntity() instanceof XYItemEntity) {
                Object dataItem = getDataItem(cme.getEntity());
                visualizers.values().forEach(visualizer -> {
                    visualizer.mouseClicked(dataItem);
                });
            }
        }

        @Override
        public void chartMouseMoved(ChartMouseEvent cme) {
            if (cme.getEntity() != null && cme.getEntity() instanceof XYItemEntity) {
                setCursor(HAND_CURSOR);
            } else {
                setCursor(DEFAULT_CURSOR);
            }
        }
    });
}

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From source file:userinterface.graph.Histogram.java

/**
 * Exports our Histogram to a GNU plot readable file
 * /*from  ww  w .j  ava2  s . c om*/
 * @param file The file to which the data has to be written
 * @throws IOException
 */
public void exportToGnuplot(File file) throws IOException {

    PrintWriter out = new PrintWriter(new FileWriter(file));

    //add some info for the users
    out.println("#=========================================");
    out.println("# Generated by PRISM Chart Package");
    out.println("#=========================================");
    out.println("# usage: gnuplot <filename>");
    out.println("# Written by Muhammad Omer Saeed <muhammad.omar555@gmail.com>");

    out.println();

    //set some properties
    out.println("set xtics rotate out");
    out.println("set auto x");
    out.println("set yrange " + "[0:" + getChart().getXYPlot().getRangeAxis().getRange().getUpperBound() * 1.2
            + "]");
    out.println("set style data histogram");
    out.println("set style fill solid border");
    out.println("set style histogram clustered");
    out.println("set boxwidth 3");

    synchronized (getSeriesLock()) {

        for (int i = 0; i < getChart().getXYPlot().getSeriesCount(); i++) {

            if (i == 0)
                out.print("plot '-' using 2:xticlabels(1)");
            else
                out.print(", '-' using 2:xticlabels(1)");
        }

        out.println();
        out.println();

        //write the histogram data
        for (int i = 0; i < getAllSeriesKeys().size(); i++) {

            XYIntervalSeries series = keyToSeries.get(getAllSeriesKeys().get(i));

            out.println("max   " + series.getKey());

            for (int j = 0; j < series.getItemCount(); j++) {

                XYIntervalDataItem item = (XYIntervalDataItem) series.getDataItem(j);

                double x = item.getXHighValue();
                x = x * 100;
                x = Math.round(x);
                x = x / 100;

                out.println(x + "   " + item.getYValue());

            }

            out.println("end series");
            out.println();
        }

    }

    //finishing up
    out.println();
    out.println("pause -1");

    out.flush();
    out.close();
}

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