edu.jhu.cs.cisst.algorithms.optimize.fmg.restrictor
Class RestrictorByStencil

java.lang.Object
  edu.jhu.cs.cisst.algorithms.optimize.fmg.restrictor.RestrictorByStencil

All Implemented Interfaces:

Restrictor

public class RestrictorByStencil
extends java.lang.Object
implements Restrictor

The Class RestrictorByStencil.

Field Summary

static Stencil	FULL_WEIGHTING the stencil that characterises full weighting.
static Stencil	FULL_WEIGHTING_2D The Constant FULL_WEIGHTING_2D.
static Stencil	HALF_WEIGHTING the stencil that characterises half weighting which is halfway between full weighting and straigh injection.
protected Stencil	s The stencil.
static Stencil	STRAIGHT_INJECTION the stencil that characterises straight injection where elements of those elements of the fine grid that are also present in the coarse grid are simply copied from the fine grid to the coarse grid.
protected IntRange1D	totalRange The total range.

Constructor Summary

RestrictorByStencil(Stencil stencil)
construct from restriction stencil.

Method Summary

Grid	restrict(ConstGrid grid, SolverResolutionLevels levels) implements method from Restrictor.
void	restrictProper(Grid coarse, ConstGrid fine, int myNum, int totalNum) Restrict proper.

Methods inherited from class java.lang.Object

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

Field Detail

s

protected Stencil s

The stencil.

totalRange

protected IntRange1D totalRange

The total range.

STRAIGHT_INJECTION

public static final Stencil STRAIGHT_INJECTION

the stencil that characterises straight injection where elements of those elements of the fine grid that are also present in the coarse grid are simply copied from the fine grid to the coarse grid. This method is not always stable.

FULL_WEIGHTING

public static final Stencil FULL_WEIGHTING

the stencil that characterises full weighting. The stencil for full weighting is the the transpose of the stencil for trilinear interpolation, which is of theoretical importance.

FULL_WEIGHTING_2D

public static final Stencil FULL_WEIGHTING_2D

The Constant FULL_WEIGHTING_2D.

HALF_WEIGHTING

public static final Stencil HALF_WEIGHTING

the stencil that characterises half weighting which is halfway between full weighting and straigh injection.

Constructor Detail

RestrictorByStencil

public RestrictorByStencil(Stencil stencil)

construct from restriction stencil.

Parameters:

stencil - the stencil that defines restriction

Method Detail

restrict

public Grid restrict(ConstGrid grid,
                     SolverResolutionLevels levels)

implements method from Restrictor.

Specified by:

restrict in interface Restrictor

Parameters:

grid - the grid

levels - the levels

Returns:

the grid

See Also:

Restrictor.restrict(edu.jhu.cs.cisst.algorithms.optimize.fmg.grid.ConstGrid, edu.jhu.cs.cisst.algorithms.optimize.fmg.SolverResolutionLevels)

restrictProper

public void restrictProper(Grid coarse,
                           ConstGrid fine,
                           int myNum,
                           int totalNum)

Restrict proper.

Parameters:

coarse - the coarse

fine - the fine

myNum - the my num

totalNum - the total num