Example usage for org.jfree.chart.axis TickUnits get

Introduction

In this page you can find the example usage for org.jfree.chart.axis TickUnits get.

Prototype

public TickUnit get(int pos) 

Source Link

Document

Returns the tickunit on the given position.

Usage

From source file:org.pentaho.plugin.jfreereport.reportcharts.CategoricalChartExpressionTest.java

@Test
public void testStandardTickUnitsApplyFormat() throws Exception {
    NumberAxis axis = new NumberAxis();
    final TickUnits standardTickUnits = (TickUnits) axis.getStandardTickUnits();
    final double initialFirstTickUnitSize = standardTickUnits.get(0).getSize();
    assertTickUnitSizeByPattern("", initialFirstTickUnitSize);

    assertTickUnitSizeByPattern("#,###", 1.0);
    assertTickUnitSizeByPattern("#", 1.0);
    assertTickUnitSizeByPattern("#.#", 0.1);
    assertTickUnitSizeByPattern("#.####", 1.0E-4);
}

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From source file:org.pentaho.plugin.jfreereport.reportcharts.CategoricalChartExpressionTest.java

private void assertTickUnitSizeByPattern(String pattern, double tickUnitSize) {
    NumberAxis axis = new NumberAxis();
    DecimalFormat formatter = new DecimalFormat(pattern, new DecimalFormatSymbols(new Locale("en_US")));
    expression.standardTickUnitsApplyFormat(axis, formatter);
    final TickUnits standardTickUnits = (TickUnits) axis.getStandardTickUnits();
    // first n standard tick unit elements should be removed
    Assert.assertEquals(tickUnitSize, standardTickUnits.get(0).getSize(), 0.0000000001);
}

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From source file:org.pentaho.plugin.jfreereport.reportcharts.AbstractChartExpression.java

/**
 * Reduces standard tick unit array to meet  formatting  precision and avoid duplicated values (PRD-5821)
 *
 * @return//from  www. j ava  2  s .  c om
 */
protected void standardTickUnitsApplyFormat(NumberAxis numberAxis, NumberFormat format) {
    final TickUnits standardTickUnits = (TickUnits) numberAxis.getStandardTickUnits();
    TickUnits cutTickUnits = new TickUnits();
    double formatterMinSize = 1 / Math.pow(10, format.getMaximumFractionDigits());
    for (int i = 0; i < standardTickUnits.size(); i++) {
        if (Double.compare(standardTickUnits.get(i).getSize(), formatterMinSize) >= 0) {
            cutTickUnits.add(new NumberTickUnit(standardTickUnits.get(i).getSize()));
        }
    }
    numberAxis.setStandardTickUnits(cutTickUnits);
}

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