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

Introduction

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

Prototype

public boolean isAutoTickUnitSelection() 

Source Link

Document

Returns a flag indicating whether or not the tick unit is automatically selected from a range of standard tick units.

Usage

From source file:net.sf.jasperreports.charts.util.ChartUtil.java

public void setAutoTickUnit(NumberAxis numberAxis) {
    if (numberAxis.isAutoTickUnitSelection()) {
        Range range = numberAxis.getRange();
        if (range.getLength() >= AUTO_TICK_UNIT_THRESHOLD) {
            // this is a workaround for a floating point error makes JFreeChart
            // select tick units that are too small when the values are very large
            double autoSize = range.getLength() / AUTO_TICK_UNIT_THRESHOLD;
            TickUnit unit = numberAxis.getStandardTickUnits().getCeilingTickUnit(autoSize);
            numberAxis.setTickUnit((NumberTickUnit) unit, false, false);
        }//from  w w w  . j av  a  2  s  . c om
    }
}

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From source file:com.xpn.xwiki.plugin.charts.ChartCustomizer.java

public static void customizeNumberAxis(NumberAxis axis, ChartParams params, String prefix) {
    customizeValueAxis(axis, params, prefix);
    if (axis.isAutoRange()) { // work only with auto range
        if (params.get(prefix + ChartParams.NUMBER_AXIS_AUTO_RANGE_INCLUDES_ZERO_SUFFIX) != null) {
            axis.setAutoRangeIncludesZero(
                    params.getBoolean(prefix + ChartParams.NUMBER_AXIS_AUTO_RANGE_INCLUDES_ZERO_SUFFIX)
                            .booleanValue());
        }//w w  w  .  j av  a 2 s.  c o  m
        if (params.get(prefix + ChartParams.NUMBER_AXIS_AUTO_RANGE_STICKY_ZERO_SUFFIX) != null) {
            axis.setAutoRangeStickyZero(params
                    .getBoolean(prefix + ChartParams.NUMBER_AXIS_AUTO_RANGE_STICKY_ZERO_SUFFIX).booleanValue());
        }
    }
    if (params.get(prefix + ChartParams.NUMBER_AXIS_RANGE_TYPE_SUFFIX) != null) {
        axis.setRangeType(params.getRangeType(prefix + ChartParams.NUMBER_AXIS_RANGE_TYPE_SUFFIX));
    }
    if (params.get(prefix + ChartParams.NUMBER_AXIS_NUMBER_TICK_UNIT_SUFFIX) != null) {
        if (axis.isAutoTickUnitSelection()) {
            axis.setAutoTickUnitSelection(false);
        }
        axis.setTickUnit(params.getNumberTickUnit(prefix + ChartParams.NUMBER_AXIS_NUMBER_TICK_UNIT_SUFFIX));
    }
    if (params.get(prefix + ChartParams.NUMBER_AXIS_NUMBER_FORMAT_OVERRIDE_SUFFIX) != null) {
        axis.setNumberFormatOverride(
                params.getNumberFormat(prefix + ChartParams.NUMBER_AXIS_NUMBER_FORMAT_OVERRIDE_SUFFIX));
    }
}

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