Examples with AxisRenderer com.github.mikephil.charting.renderer.AxisRenderer used on opensource projects

Example 1 with AxisRenderer

use of com.github.mikephil.charting.renderer.AxisRenderer in project MPAndroidChart by PhilJay.

the class AxisRendererTest method testComputeAxisValues.

@Test
public void testComputeAxisValues() {
    YAxis yAxis = new YAxis();
    yAxis.setLabelCount(6);
    AxisRenderer renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(0, 100, false);
    float[] entries = yAxis.mEntries;
    assertEquals(6, entries.length);
    // interval 20
    assertEquals(20, entries[1] - entries[0], 0.01);
    assertEquals(0, entries[0], 0.01);
    assertEquals(100, entries[entries.length - 1], 0.01);
    yAxis = new YAxis();
    yAxis.setLabelCount(6);
    yAxis.setGranularity(50f);
    renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(0, 100, false);
    entries = yAxis.mEntries;
    assertEquals(3, entries.length);
    // interval 50
    assertEquals(50, entries[1] - entries[0], 0.01);
    assertEquals(0, entries[0], 0.01);
    assertEquals(100, entries[entries.length - 1], 0.01);
    yAxis = new YAxis();
    yAxis.setLabelCount(5, true);
    renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(0, 100, false);
    entries = yAxis.mEntries;
    assertEquals(5, entries.length);
    // interval 25
    assertEquals(25, entries[1] - entries[0], 0.01);
    assertEquals(0, entries[0], 0.01);
    assertEquals(100, entries[entries.length - 1], 0.01);
    yAxis = new YAxis();
    yAxis.setLabelCount(5, true);
    renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(0, 0.01f, false);
    entries = yAxis.mEntries;
    assertEquals(5, entries.length);
    assertEquals(0.0025, entries[1] - entries[0], 0.0001);
    assertEquals(0, entries[0], 0.0001);
    assertEquals(0.01, entries[entries.length - 1], 0.0001);
    yAxis = new YAxis();
    yAxis.setLabelCount(5, false);
    renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(0, 0.01f, false);
    entries = yAxis.mEntries;
    assertEquals(5, entries.length);
    assertEquals(0.0020, entries[1] - entries[0], 0.0001);
    assertEquals(0, entries[0], 0.0001);
    assertEquals(0.0080, entries[entries.length - 1], 0.0001);
    yAxis = new YAxis();
    yAxis.setLabelCount(6);
    renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(-50, 50, false);
    entries = yAxis.mEntries;
    assertEquals(5, entries.length);
    assertEquals(-40, entries[0], 0.0001);
    assertEquals(0, entries[2], 0.0001);
    assertEquals(40, entries[entries.length - 1], 0.0001);
    yAxis = new YAxis();
    yAxis.setLabelCount(6);
    renderer = new YAxisRenderer(null, yAxis, null);
    renderer.computeAxis(-50, 100, false);
    entries = yAxis.mEntries;
    assertEquals(5, entries.length);
    assertEquals(-30, entries[0], 0.0001);
    assertEquals(30, entries[2], 0.0001);
    assertEquals(90, entries[entries.length - 1], 0.0001);
}