org.opensourcephysics.sip.ch17
Class RigidBody

java.lang.Object
  org.opensourcephysics.sip.ch17.RigidBody

All Implemented Interfaces:

ODE

Direct Known Subclasses:

FreeRotation, SpinningTop

public class RigidBody
extends java.lang.Object
implements ODE

RigidBody models rigid body dynamics by solving Euler's equations using an ODE solver.

Constructor Summary

RigidBody()

Method Summary

void	advanceTime() Advances the time be solving the differential equation.
double[]	getBodyFrameAngularMomentum() Gets the space frame angular momentum components.
double[]	getBodyFrameOmega() Gets the space frame angular velocity components.
void	getRate(double[] state, double[] rate) Gets the rate of the rigid body's state using the given state.
double[]	getState() Gets the state of the rigid body.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RigidBody

public RigidBody()

Method Detail

getBodyFrameOmega

public double[] getBodyFrameOmega()

Gets the space frame angular velocity components.

Returns:

the omega vector

getBodyFrameAngularMomentum

public double[] getBodyFrameAngularMomentum()

Gets the space frame angular momentum components.

Returns:

the angular momentum vector

advanceTime

public void advanceTime()

Advances the time be solving the differential equation.

getState

public double[] getState()

Gets the state of the rigid body.

Specified by:

getState in interface ODE

Returns:

double[]

getRate

public void getRate(double[] state,
                    double[] rate)

Gets the rate of the rigid body's state using the given state.

Specified by:

getRate in interface ODE

Parameters:

state - double[]

rate - double[]