Example usage for org.jfree.chart.axis NumberAxis setRangeWithMargins

Introduction

In this page you can find the example usage for org.jfree.chart.axis NumberAxis setRangeWithMargins.

Prototype

public void setRangeWithMargins(double lower, double upper) 

Source Link

Document

Sets the axis range (after first adding the current margins to the range) and sends an AxisChangeEvent to all registered listeners.

Usage

From source file:no.met.jtimeseries.chart.ChartPlotter.java

/**
 * Add a line chart in the plot/*from   www  . j  a va2  s .  com*/
 * 
 * @param timeBase
 *            The base time of the data: second, minute, hour, year or auto
 * @param phenomenon
 *            Phenomenon to plot.
 * @param plotStyle
 *            The style preference for the plot
 * 
 */
public void addLineChart(TimeBase timeBase, NumberPhenomenon ph, PlotStyle plotStyle) {
    NumberPhenomenon phenomenon = ph.clone();
    if (phenomenon.getItems().size() > 0) {
        XYItemRenderer renderer = RendererFactory.createRenderer(SplineStyle.STANDARD);
        // if using hybrid spline
        if (plotStyle.getSplineStyle().equalsIgnoreCase(SplineStyle.HYBRID)) {
            phenomenon.doHybridSpline(0.5d, 4);
            renderer = RendererFactory.createRenderer(SplineStyle.NONE);
        }

        if (plotStyle.getNonNegative()) {
            phenomenon.removeNegativeValues();
        }

        XYDataset dataset = phenomenon.getTimeSeries(plotStyle.getTitle(), timeBase);

        renderer.setSeriesPaint(0, plotStyle.getSeriesColor());
        renderer.setSeriesStroke(0, plotStyle.getStroke());

        // hidden the legend by default
        renderer.setSeriesVisibleInLegend(0, false);

        plot.setDataset(plotIndex, dataset);
        plot.setRenderer(plotIndex, renderer);

        // render the range axis
        NumberAxis numberAxis;
        // null check for number axis
        if (plotStyle.getNumberAxis() == null) {
            numberAxis = new NumberAxis(plotStyle.getTitle());
            numberAxis.setAutoRangeIncludesZero(false);
            numberAxis.setLabelPaint(plotStyle.getLabelColor());
            numberAxis.setTickLabelPaint(plotStyle.getLabelColor());

            // ugly calculation
            double max = phenomenon.getMaxValue();
            double min = phenomenon.getMinValue();
            // increase and decrease max, min respectiivly to get the
            // difference pf atleast 50
            while ((max - min) <= plotStyle.getDifference()) {
                max++;
                min--;
            }
            int tUnit = (int) ((max - min) / plotStyle.getTotalTicks());
            if (tUnit <= 1) {
                tUnit = 2;
            }
            int[] range = calculateAxisMaxMin(phenomenon, tUnit, plotStyle.getTotalTicks());

            NumberTickUnit ntu = new NumberTickUnit(tUnit);
            numberAxis.setTickUnit(ntu);
            numberAxis.setRangeWithMargins(range[1], range[0]);
        } else {
            numberAxis = plotStyle.getNumberAxis();
        }
        plot.setRangeAxis(rangeAxisIndex, numberAxis);

        Date minDate = phenomenon.getStartTime();
        Date maxDate = phenomenon.getEndTime();

        DateAxis domainAxis = (DateAxis) plot.getDomainAxis();
        domainAxis.setRange(minDate, maxDate);

        plot.mapDatasetToRangeAxis(plotIndex, rangeAxisIndex);

        plotIndex++;
        rangeAxisIndex++;
    }
}

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