edu.jhu.cs.cisst.algorithms.optimize.fmg.interpolator
Class InterpolatorByStencil

java.lang.Object
  edu.jhu.cs.cisst.algorithms.optimize.fmg.interpolator.InterpolatorByStencil

All Implemented Interfaces:

Interpolator

public class InterpolatorByStencil
extends java.lang.Object
implements Interpolator

An interpolator that operates according to an interpolation stencil.

A stencil is a means of defining the relationship of a grid element and its 26 nearest neighbors. In this case the interpolation stencil defines how to distribute the values of a coarse grid to the values of a fine grid during the process of interpolation.

Author:

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

See Also:

Stencil

Field Summary

static Stencil	BILINEAR
protected int[]	coarseSize The coarse size.
protected int[]	fineSize The fine size.
protected Stencil	s The stencil.
protected IntRange1D	totalRange The total range.
static Stencil	TRILINEAR the stencil that characterises trilinear interpolation where every element of the fine grid that does not coincide with an element of the coarse grid is calculated by linear interpolation between its nearest neighbors.

Constructor Summary

InterpolatorByStencil(Stencil stencil)
construct from interpolation stencil.

Method Summary

BoundaryGrid	interpolate(ConstBoundaryGrid grid, SolverResolutionLevels levels) implements method from Interpolator.
void	interpolateProper(BoundaryGrid fine, ConstBoundaryGrid coarse, int myNum, int totalNum) implements the parallel part of interpolate().

Methods inherited from class java.lang.Object

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

Field Detail

TRILINEAR

public static final Stencil TRILINEAR

the stencil that characterises trilinear interpolation where every element of the fine grid that does not coincide with an element of the coarse grid is calculated by linear interpolation between its nearest neighbors.

BILINEAR

public static final Stencil BILINEAR

s

protected Stencil s

The stencil.

coarseSize

protected int[] coarseSize

The coarse size.

fineSize

protected int[] fineSize

The fine size.

totalRange

protected IntRange1D totalRange

The total range.

Constructor Detail

InterpolatorByStencil

public InterpolatorByStencil(Stencil stencil)

construct from interpolation stencil.

Parameters:

stencil - the stencil that defines interpolation

Method Detail

interpolate

public BoundaryGrid interpolate(ConstBoundaryGrid grid,
                                SolverResolutionLevels levels)

implements method from Interpolator.

Specified by:

interpolate in interface Interpolator

Parameters:

grid - the grid

levels - the levels

Returns:

the boundary grid

See Also:

Interpolator.interpolate(edu.jhu.cs.cisst.algorithms.optimize.fmg.grid.ConstBoundaryGrid, edu.jhu.cs.cisst.algorithms.optimize.fmg.SolverResolutionLevels)

interpolateProper

public void interpolateProper(BoundaryGrid fine,
                              ConstBoundaryGrid coarse,
                              int myNum,
                              int totalNum)

implements the parallel part of interpolate().

Parameters:

fine - the fine

coarse - the coarse

myNum - the current index

totalNum - the number of parallel jobs