Example usage for org.jfree.chart.axis LogAxis setNumberFormatOverride

Introduction

In this page you can find the example usage for org.jfree.chart.axis LogAxis setNumberFormatOverride.

Prototype

public void setNumberFormatOverride(NumberFormat formatter) 

Source Link

Document

Sets the number format override and sends a change event to all registered listeners.

Usage

From source file:edu.fullerton.viewerplugin.SpectrumPlot.java

private ChartPanel getPanel(ArrayList<ChanDataBuffer> dbufs, boolean compact) throws WebUtilException {
    ChartPanel ret = null;//from   www  .  ja v  a 2  s  . co  m
    try {
        float tfsMax = 0;
        for (ChanDataBuffer buf : dbufs) {
            ChanInfo ci = buf.getChanInfo();
            float fs = ci.getRate();
            tfsMax = Math.max(fs, tfsMax);
        }
        setFsMax(tfsMax);
        String gtitle = getTitle(dbufs, compact);
        int nbuf = dbufs.size();
        XYSeries[] xys = new XYSeries[nbuf];
        XYSeriesCollection mtds = new XYSeriesCollection();

        int cnum = 0;
        compact = dbufs.size() > 2 ? false : compact;
        float bw = 1.f;
        for (ChanDataBuffer dbuf : dbufs) {
            String legend = getLegend(dbuf, compact);

            xys[cnum] = new XYSeries(legend);

            bw = calcSpectrum(xys[cnum], dbuf);

            mtds.addSeries(xys[cnum]);
        }

        DefaultXYDataset ds = new DefaultXYDataset();
        String yLabel = pwrScale.toString();
        DecimalFormat dform = new DecimalFormat("0.0###");
        String xLabel;
        xLabel = String.format("Frequency Hz - (bw: %1$s, #fft: %2$,d, s/fft: %3$.2f, ov: %4$.2f)",
                dform.format(bw), nfft, secperfft, overlap);

        Double minx, miny, maxx, maxy;
        Double[] rng = new Double[4];
        if (fmin <= 0) {
            fmin = bw;
        }
        float searchFmax = fmax;
        if (fmax <= 0 || fmax == Float.MAX_VALUE) {
            fmax = tfsMax / 2;
            searchFmax = tfsMax / 2 * 0.8f;
        }
        PluginSupport.getRangeLimits(mtds, rng, 2, fmin, searchFmax);
        minx = rng[0];
        miny = rng[1];
        maxx = rng[2];
        maxy = rng[3];

        findSmallest(mtds);
        int exp;
        if (maxy == 0. && miny == 0.) {
            miny = -1.;
            exp = 0;
            logYaxis = false;
        } else {
            miny = miny > 0 ? miny : smallestY;
            maxy = maxy > 0 ? maxy : miny * 10;
            exp = PluginSupport.scaleRange(mtds, miny, maxy);
            if (!logYaxis) {
                yLabel += " x 1e-" + Integer.toString(exp);
            }
        }
        JFreeChart chart = ChartFactory.createXYLineChart(gtitle, xLabel, yLabel, ds, PlotOrientation.VERTICAL,
                true, false, false);
        XYPlot plot = (XYPlot) chart.getPlot();
        if (logYaxis) {
            LogAxis rangeAxis = new LogAxis(yLabel);
            double smallest = miny * Math.pow(10, exp);
            rangeAxis.setSmallestValue(smallest);
            rangeAxis.setMinorTickCount(9);

            LogAxisNumberFormat lanf = new LogAxisNumberFormat();
            lanf.setExp(exp);

            rangeAxis.setNumberFormatOverride(lanf);
            rangeAxis.setRange(smallest, maxy * Math.pow(10, exp));
            rangeAxis.setStandardTickUnits(LogAxis.createLogTickUnits(Locale.US));
            plot.setRangeAxis(rangeAxis);
            plot.setRangeGridlinesVisible(true);
            plot.setRangeGridlinePaint(Color.BLACK);
        }
        if (logXaxis) {
            LogAxis domainAxis = new LogAxis(xLabel);
            domainAxis.setBase(2);
            domainAxis.setMinorTickCount(9);
            domainAxis.setMinorTickMarksVisible(true);
            domainAxis.setSmallestValue(smallestX);
            domainAxis.setNumberFormatOverride(new LogAxisNumberFormat());
            //domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
            plot.setDomainAxis(domainAxis);
            plot.setDomainGridlinesVisible(true);
            plot.setDomainGridlinePaint(Color.BLACK);
        }
        ValueAxis domainAxis = plot.getDomainAxis();
        if (fmin > Float.MIN_VALUE) {
            domainAxis.setLowerBound(fmin);
        }
        if (fmax != Float.MAX_VALUE) {
            domainAxis.setUpperBound(fmax);
        }
        plot.setDomainAxis(domainAxis);
        plot.setDataset(0, mtds);
        plot.setDomainGridlinePaint(Color.DARK_GRAY);
        plot.setRangeGridlinePaint(Color.DARK_GRAY);

        // Set the line thickness
        XYLineAndShapeRenderer r = (XYLineAndShapeRenderer) plot.getRenderer();
        BasicStroke str = new BasicStroke(lineThickness);
        int n = plot.getSeriesCount();
        for (int i = 0; i < n; i++) {
            r.setSeriesStroke(i, str);
        }
        plot.setBackgroundPaint(Color.WHITE);
        if (compact) {
            chart.removeLegend();
        }
        ret = new ChartPanel(chart);
    } catch (Exception ex) {
        throw new WebUtilException("Creating spectrum plot" + ex.getLocalizedMessage());
    }
    return ret;

}

---

• «
• 1
• 2
• »