gov.nasa.worldwind.util
Class ImageInterpolator

java.lang.Object
  gov.nasa.worldwind.util.ImageInterpolator

Direct Known Subclasses:

GeographicImageInterpolator

public class ImageInterpolator
extends Object

Provides searching and interpolation of a grid of scalars.

Nested Class Summary

protected static class	ImageInterpolator.Cell
static class	ImageInterpolator.ContainingCell

Field Summary

protected int	cellSize
protected Dimension	gridSize
protected BasicMemoryCache	kidCache
protected ImageInterpolator.Cell	root
protected float[]	xs
protected float[]	ys

Constructor Summary

ImageInterpolator(Dimension gridSize, float[] xs, float[] ys, int depth, int cellSize)

Method Summary

protected ImageInterpolator.ContainingCell	checkContainment(float x, float y, ImageInterpolator.Cell cell)
protected double[]	computeBilinearCoordinates(float x, float y, ImageInterpolator.Cell cell)
ImageInterpolator.ContainingCell	findContainingCell(float x, float y)
protected ImageInterpolator.ContainingCell	findContainingCell(ImageInterpolator.Cell cell, float x, float y)
protected int[]	getFieldIndices(ImageInterpolator.Cell cell)
protected ImageInterpolator.Cell	makeRootCell(int m0, int m1, int n0, int n1)

Methods inherited from class java.lang.Object

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

Field Detail

cellSize

protected final int cellSize

gridSize

protected final Dimension gridSize

kidCache

protected final BasicMemoryCache kidCache

root

protected final ImageInterpolator.Cell root

xs

protected final float[] xs

ys

protected final float[] ys

Constructor Detail

ImageInterpolator

public ImageInterpolator(Dimension gridSize,
                         float[] xs,
                         float[] ys,
                         int depth,
                         int cellSize)

Method Detail

checkContainment

protected ImageInterpolator.ContainingCell checkContainment(float x,
                                                            float y,
                                                            ImageInterpolator.Cell cell)

computeBilinearCoordinates

protected double[] computeBilinearCoordinates(float x,
                                              float y,
                                              ImageInterpolator.Cell cell)

findContainingCell

public ImageInterpolator.ContainingCell findContainingCell(float x,
                                                           float y)

findContainingCell

protected ImageInterpolator.ContainingCell findContainingCell(ImageInterpolator.Cell cell,
                                                              float x,
                                                              float y)

getFieldIndices

protected int[] getFieldIndices(ImageInterpolator.Cell cell)

makeRootCell

protected ImageInterpolator.Cell makeRootCell(int m0,
                                              int m1,
                                              int n0,
                                              int n1)