Example usage for org.apache.commons.math3.geometry.euclidean.threed RotationOrder ZXY

Introduction

In this page you can find the example usage for org.apache.commons.math3.geometry.euclidean.threed RotationOrder ZXY.

Prototype

RotationOrder ZXY

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Document

Set of Cardan angles.

Usage

From source file:org.orekit.attitudes.LofOffsetTest.java

@Test
public void testRetrieveAngles() throws OrekitException, CardanEulerSingularityException {
    AbsoluteDate date = new AbsoluteDate(new DateComponents(1970, 01, 01), new TimeComponents(3, 25, 45.6789),
            TimeScalesFactory.getUTC());
    KeplerianOrbit orbit = new KeplerianOrbit(7178000.0, 1.e-4, FastMath.toRadians(50.),
            FastMath.toRadians(10.), FastMath.toRadians(20.), FastMath.toRadians(30.), PositionAngle.MEAN,
            FramesFactory.getEME2000(), date, 3.986004415e14);

    RotationOrder order = RotationOrder.ZXY;
    double alpha1 = 0.123;
    double alpha2 = 0.456;
    double alpha3 = 0.789;
    LofOffset law = new LofOffset(orbit.getFrame(), LOFType.VVLH, order, alpha1, alpha2, alpha3);
    Rotation offsetAtt = law.getAttitude(orbit, date, orbit.getFrame()).getRotation();
    Rotation alignedAtt = new LofOffset(orbit.getFrame(), LOFType.VVLH)
            .getAttitude(orbit, date, orbit.getFrame()).getRotation();
    Rotation offsetProper = offsetAtt.applyTo(alignedAtt.revert());
    double[] angles = offsetProper.revert().getAngles(order);
    Assert.assertEquals(alpha1, angles[0], 1.0e-11);
    Assert.assertEquals(alpha2, angles[1], 1.0e-11);
    Assert.assertEquals(alpha3, angles[2], 1.0e-11);
}

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