Example usage for org.apache.commons.math.linear MatrixUtils createRealIdentityMatrix

Introduction

In this page you can find the example usage for org.apache.commons.math.linear MatrixUtils createRealIdentityMatrix.

Prototype

public static RealMatrix createRealIdentityMatrix(int dimension) 

Source Link

Document

Returns dimension x dimension identity matrix.

Usage

From source file:gda.images.camera.ScannableSampleMovementServiceTest.java

public void testWithBasicSettings() throws Exception {
    sms.setOmegaDirection(OmegaDirection.ANTICLOCKWISE);
    sms.setAxisOrientationMatrix(MatrixUtils.createRealIdentityMatrix(3));
    sms.afterPropertiesSet();//from  w  w  w .j a va2s . c  o m

    assertPositionsEqual(ZERO_POSITION, sampleXyz.getPositionArray());
    assertEquals(0, omega.getAngle(), DELTA);

    sms.moveSampleByMicrons(10, 20, 30);

    assertPositionsEqual(new double[] { 10, 20, 30 }, sampleXyz.getPositionArray());
    assertEquals(0, omega.getAngle(), DELTA);
}

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From source file:gda.images.camera.ScannableSampleMovementServiceTest.java

public void testWithNonZeroOmega() throws Exception {
    sms.setOmegaDirection(OmegaDirection.ANTICLOCKWISE);
    sms.setAxisOrientationMatrix(MatrixUtils.createRealIdentityMatrix(3));
    sms.afterPropertiesSet();// w w w  .  j  a  v  a2s  .co  m

    omega.moveTo(90);

    assertPositionsEqual(ZERO_POSITION, sampleXyz.getPositionArray());
    assertEquals(90, omega.getAngle(), DELTA);

    sms.moveSampleByMicrons(10, 20, 30);

    assertPositionsEqual(new double[] { 10, -30, 20 }, sampleXyz.getPositionArray());
    assertEquals(90, omega.getAngle(), DELTA);
}

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From source file:gda.images.camera.ScannableSampleMovementServiceTest.java

public void testWithClockwisePhiDirection() throws Exception {
    sms.setOmegaDirection(OmegaDirection.CLOCKWISE);
    sms.setAxisOrientationMatrix(MatrixUtils.createRealIdentityMatrix(3));
    sms.afterPropertiesSet();/*  w ww.ja  v a 2 s. c  o  m*/

    omega.moveTo(90);

    assertPositionsEqual(ZERO_POSITION, sampleXyz.getPositionArray());
    assertEquals(90, omega.getAngle(), DELTA);

    sms.moveSampleByMicrons(10, 20, 30);

    assertPositionsEqual(new double[] { 10, 30, -20 }, sampleXyz.getPositionArray());
    assertEquals(90, omega.getAngle(), DELTA);
}

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From source file:org.eclipse.recommenders.jayes.transformation.SmoothedFactorDecomposition.java

@Override
protected List<double[]> getBasis(AbstractFactor f, List<double[]> vectors) {
    List<double[]> basis = new ArrayList<double[]>();
    int d = MathUtils.product(f.getDimensions()) / vectors.size();
    double[] ones = new double[d];
    Arrays.fill(ones, 1);/*from  w w w.ja va2 s  .  c o m*/
    basis.add(ones);

    for (double[] e : MatrixUtils.createRealIdentityMatrix(d).getData()) {
        basis.add(e);
    }
    return basis;
}

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