edu.jhu.cs.cisst.algorithms.optimize.fmg.smoother
Class DampedJacobi

java.lang.Object
  edu.jhu.cs.cisst.algorithms.optimize.fmg.smoother.DampedJacobi

All Implemented Interfaces:

Smoother

public final class DampedJacobi
extends java.lang.Object
implements Smoother

An implementation of the damped Jacobi method of relaxing (thereby smoothing) the solution of a linear elliptic PDE.

Author:

Gerald Loeffler (Gerald.Loeffler@univie.ac.at)

Field Summary

static double

IDEAL_WEIGHTING_FACTOR in theory the ideal weighting factor, i.e.

Constructor Summary

DampedJacobi(PDE pde, double weightingFactor)
construct from PDE and weighting factor.

Method Summary

BoundaryGrid

smooth(ConstBoundaryGrid u, ConstNoBoundaryGrid f) implements method from Smoother.

Methods inherited from class java.lang.Object

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

Field Detail

IDEAL_WEIGHTING_FACTOR

public static final double IDEAL_WEIGHTING_FACTOR

in theory the ideal weighting factor, i.e. the relative contribution of a new iteration value at a grid element.

See Also:

Constant Field Values

Constructor Detail

DampedJacobi

public DampedJacobi(PDE pde,
                    double weightingFactor)

construct from PDE and weighting factor.

Parameters:

pde - a representation of the PDE

weightingFactor - the relative contribution of a new iteration value at a grid element (0 < weightingFactor <= 1)

Method Detail

smooth

public BoundaryGrid smooth(ConstBoundaryGrid u,
                           ConstNoBoundaryGrid f)

implements method from Smoother.

Specified by:

smooth in interface Smoother

Parameters:

u - the u

f - the f

Returns:

the boundary grid

See Also:

Smoother.smooth(edu.jhu.cs.cisst.algorithms.optimize.fmg.grid.ConstBoundaryGrid, edu.jhu.cs.cisst.algorithms.optimize.fmg.grid.ConstNoBoundaryGrid)