org.deegree.processing.raster.interpolation
Class Interpolation

java.lang.Object
  org.deegree.processing.raster.interpolation.Interpolation

Direct Known Subclasses:

InverseDistanceToPower

public abstract class Interpolation
extends Object

Interpolation is the abstract base class for all interpolation algorithms. Data representation is done via the Quadtree interface.

Version:

$Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $

Author:

Andreas Poth, last edited by: $Author: mschneider $

Field Summary

protected double	autoincreaseSearchRadius1
protected double	autoincreaseSearchRadius2
protected Quadtree<?>	data
protected Values	ignoreValues
protected int	maxData
protected int	minData
protected double	noValue
protected double	searchRadius1
protected double	searchRadius2
protected double	searchRadiusAngle

Constructor Summary

protected	Interpolation(Quadtree<?> data)
protected	Interpolation(Quadtree<?> data, Values ignoreValues)
protected	Interpolation(Quadtree<?> data, Values ignoreValues, double searchRadius1, double searchRadius2, double searchRadiusAngle, int minData, int maxData, double noValue, double autoincreaseSearchRadius1, double autoincreaseSearchRadius2)

Method Summary

abstract double	calcInterpolatedValue(double x, double y, double searchRadius1, double searchRadius2) calculates the interpolated value for a position defined by x and y
FloatGridCoverage	interpolate(int width, int height) performs the interpolation

Methods inherited from class java.lang.Object

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

Field Detail

data

protected Quadtree<?> data

ignoreValues

protected Values ignoreValues

searchRadius1

protected double searchRadius1

searchRadius2

protected double searchRadius2

searchRadiusAngle

protected double searchRadiusAngle

minData

protected int minData

maxData

protected int maxData

noValue

protected double noValue

autoincreaseSearchRadius1

protected double autoincreaseSearchRadius1

autoincreaseSearchRadius2

protected double autoincreaseSearchRadius2

Constructor Detail

Interpolation

protected Interpolation(Quadtree<?> data)

Parameters:

data -

Interpolation

protected Interpolation(Quadtree<?> data,
                        Values ignoreValues)

Parameters:

data -

ignoreValues -

Interpolation

protected Interpolation(Quadtree<?> data,
                        Values ignoreValues,
                        double searchRadius1,
                        double searchRadius2,
                        double searchRadiusAngle,
                        int minData,
                        int maxData,
                        double noValue,
                        double autoincreaseSearchRadius1,
                        double autoincreaseSearchRadius2)

Parameters:

data -

ignoreValues -

searchRadius1 -

searchRadius2 -

searchRadiusAngle -

minData -

maxData -

noValue -

autoincreaseSearchRadius1 -

autoincreaseSearchRadius2 -

Method Detail

interpolate

public FloatGridCoverage interpolate(int width,
                                     int height)
                              throws InterpolationException

performs the interpolation

Parameters:

width - width of the result grid in number of cells

height - height of the result grid in number of cells

Returns:

result grid as an instance of

Throws:

InterpolationException

See Also:

GridCoverage

calcInterpolatedValue

public abstract double calcInterpolatedValue(double x,
                                             double y,
                                             double searchRadius1,
                                             double searchRadius2)
                                      throws InterpolationException

calculates the interpolated value for a position defined by x and y

Parameters:

x -

y -

searchRadius1 -

searchRadius2 -

Returns:

the interpolated value

Throws:

InterpolationException