Example usage for org.apache.commons.math3.geometry.euclidean.threed Vector3D Vector3D

Introduction

In this page you can find the example usage for org.apache.commons.math3.geometry.euclidean.threed Vector3D Vector3D.

Prototype

public Vector3D(double[] v) throws DimensionMismatchException 

Source Link

Document

Simple constructor.

Usage

From source file:org.jtrfp.trcl.obj.SmokeSystem.java

private boolean isNewSmokeFeasible(final Vector3D loc, SmokeType type) {
    final TreeSet<Smoke> proximalSmokes = new TreeSet<Smoke>(new Comparator<Smoke>() {
        @Override/*from www .  jav  a  2s  .c o m*/
        public int compare(Smoke o1, Smoke o2) {
            return Misc.satCastInt(o1.getTimeOfLastReset() - o2.getTimeOfLastReset());
        }
    });
    for (int smokeTypeIndex = 0; smokeTypeIndex < allSmokes.length; smokeTypeIndex++) {
        Smoke[] explosionsOfThisType = allSmokes[smokeTypeIndex];
        for (Smoke thisSmoke : explosionsOfThisType) {
            if (thisSmoke.isActive()) {
                final double distance = new Vector3D(thisSmoke.getPosition()).distance(loc);
                if (distance < 1000)
                    return false;
                if (distance < OneShotBillboardEvent.PROXIMITY_TEST_DIST)
                    proximalSmokes.add(thisSmoke);
            } // end if(isActive)
        } // end for(explosionsOfThisType)
    } // end for(explosions)
    if (proximalSmokes.size() + 1 > OneShotBillboardEvent.MAX_PROXIMAL_EVENTS)
        proximalSmokes.first().destroy();// Destroy oldest
    return true;
}

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From source file:org.jtrfp.trcl.obj.SpawnsRandomExplosionsAndDebris.java

@Override
public void _tick(long timeMillis) {
    if (Math.random() < .05) {
        explosions.triggerExplosion(new Vector3D(getParent().getPosition()), ExplosionType.Blast);
    }/*from ww  w . ja  v a  2s .c  om*/
    if (Math.random() < .05) {
        explosions.triggerExplosion(new Vector3D(getParent().getPosition()), ExplosionType.Billow);
    }
    if (Math.random() < .1) {
        debris.spawn(new Vector3D(getParent().getPosition()), new Vector3D(Math.random() * 50000 - 25000,
                Math.random() * 50000 - 25000, Math.random() * 50000 - 25000));
    }
}

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From source file:org.jtrfp.trcl.obj.WorldObject.java

/**
 * @return the heading
 */
public final Vector3D getLookAt() {
    return new Vector3D(heading);
}

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From source file:org.jtrfp.trcl.obj.WorldObject.java

public Vector3D getHeading() {
    assert !(top[0] == 0 && top[1] == 0 && top[2] == 0);
    return new Vector3D(heading);
}

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From source file:org.jtrfp.trcl.obj.WorldObject.java

/**
 * @return the top/*w w  w.java 2 s . c om*/
 */
public final Vector3D getTop() {
    assert !(top[0] == 0 && top[1] == 0 && top[2] == 0);
    return new Vector3D(top);
}

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From source file:org.orekit.forces.gravity.HolmesFeatherstoneAttractionModel.java

/** {@inheritDoc} */
public void addContribution(final SpacecraftState s, final TimeDerivativesEquations adder)
        throws OrekitException {

    // get the position in body frame
    final AbsoluteDate date = s.getDate();
    final Transform fromBodyFrame = bodyFrame.getTransformTo(s.getFrame(), date);
    final Transform toBodyFrame = fromBodyFrame.getInverse();
    final Vector3D position = toBodyFrame.transformPosition(s.getPVCoordinates().getPosition());

    // gradient of the non-central part of the gravity field
    final Vector3D gInertial = fromBodyFrame.transformVector(new Vector3D(gradient(date, position)));

    adder.addXYZAcceleration(gInertial.getX(), gInertial.getY(), gInertial.getZ());

}

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From source file:org.orekit.forces.gravity.HolmesFeatherstoneAttractionModel.java

/** {@inheritDoc} */
public FieldVector3D<DerivativeStructure> accelerationDerivatives(final AbsoluteDate date, final Frame frame,
        final FieldVector3D<DerivativeStructure> position, final FieldVector3D<DerivativeStructure> velocity,
        final FieldRotation<DerivativeStructure> rotation, final DerivativeStructure mass)
        throws OrekitException {

    // get the position in body frame
    final Transform fromBodyFrame = bodyFrame.getTransformTo(frame, date);
    final Transform toBodyFrame = fromBodyFrame.getInverse();
    final Vector3D positionBody = toBodyFrame.transformPosition(position.toVector3D());

    // compute gradient and Hessian
    final GradientHessian gh = gradientHessian(date, positionBody);

    // gradient of the non-central part of the gravity field
    final double[] gInertial = fromBodyFrame.transformVector(new Vector3D(gh.getGradient())).toArray();

    // Hessian of the non-central part of the gravity field
    final RealMatrix hBody = new Array2DRowRealMatrix(gh.getHessian(), false);
    final RealMatrix rot = new Array2DRowRealMatrix(toBodyFrame.getRotation().getMatrix());
    final RealMatrix hInertial = rot.transpose().multiply(hBody).multiply(rot);

    // distribute all partial derivatives in a compact acceleration vector
    final int parameters = mass.getFreeParameters();
    final int order = mass.getOrder();
    final double[] derivatives = new double[1 + parameters];
    final DerivativeStructure[] accDer = new DerivativeStructure[3];
    for (int i = 0; i < 3; ++i) {

        // first element is value of acceleration (i.e. gradient of field)
        derivatives[0] = gInertial[i];/*ww w  .java2  s .  c o  m*/

        // next three elements are one row of the Jacobian of acceleration (i.e. Hessian of field)
        derivatives[1] = hInertial.getEntry(i, 0);
        derivatives[2] = hInertial.getEntry(i, 1);
        derivatives[3] = hInertial.getEntry(i, 2);

        // next elements (three or four depending on mass being used or not) are left as 0

        accDer[i] = new DerivativeStructure(parameters, order, derivatives);

    }

    return new FieldVector3D<DerivativeStructure>(accDer);

}

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From source file:org.orekit.forces.gravity.HolmesFeatherstoneAttractionModel.java

/** {@inheritDoc} */
public FieldVector3D<DerivativeStructure> accelerationDerivatives(final SpacecraftState s,
        final String paramName) throws OrekitException, IllegalArgumentException {

    complainIfNotSupported(paramName);//  w  w  w .j a v  a2  s  .  co  m

    // get the position in body frame
    final AbsoluteDate date = s.getDate();
    final Transform fromBodyFrame = bodyFrame.getTransformTo(s.getFrame(), date);
    final Transform toBodyFrame = fromBodyFrame.getInverse();
    final Vector3D position = toBodyFrame.transformPosition(s.getPVCoordinates().getPosition());

    // gradient of the non-central part of the gravity field
    final Vector3D gInertial = fromBodyFrame.transformVector(new Vector3D(gradient(date, position)));

    return new FieldVector3D<DerivativeStructure>(
            new DerivativeStructure(1, 1, gInertial.getX(), gInertial.getX() / mu),
            new DerivativeStructure(1, 1, gInertial.getY(), gInertial.getY() / mu),
            new DerivativeStructure(1, 1, gInertial.getZ(), gInertial.getZ() / mu));

}

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