org.web3d.vrml.renderer.common.input.dis
Class RungeKuttaSolver

java.lang.Object
  org.web3d.vrml.renderer.common.input.dis.RungeKuttaSolver

All Implemented Interfaces:

Solver

public class RungeKuttaSolver
extends java.lang.Object
implements Solver

A fourth order Runge-Kutta solver with adaptive step sizing, as described here: http://www-2.cs.cmu.edu/~baraff/sigcourse/notesb.pdf.

Version:

$Revision: 1.2 $

Author:

Andrzej Kapolka, Alan Hudson

Constructor Summary

RungeKuttaSolver(int size)
Constructor.

Method Summary

void	solve(SolverTarget target, double[] initialValues, double timeInterval, double errorThreshold, double[] results) Calculates and returns the values of the target variables after the specified time interval.

Methods inherited from class java.lang.Object

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

Constructor Detail

RungeKuttaSolver

public RungeKuttaSolver(int size)

Constructor.

Parameters:

size - The maximum number of variables.

Method Detail

solve

public void solve(SolverTarget target,
                  double[] initialValues,
                  double timeInterval,
                  double errorThreshold,
                  double[] results)

Calculates and returns the values of the target variables after the specified time interval.

Specified by:

solve in interface Solver

Parameters:

target - the solver target, used to determine the rates of change

initialValues - the initial values of the variables

timeInterval - the time interval, in seconds

errorThreshold - the maximum permissable error

results - an array to hold the values of the variables at the end of the time interval