Package com.opttek.optquest

Class COptQuestKrigSphericalDistance

java.lang.Object

com.opttek.optquest.COptQuestKrigSphericalDistance

All Implemented Interfaces:

IKrigDistance

public class COptQuestKrigSphericalDistance
extends Object
implements IKrigDistance

An implementation of KrigDistance that returns the "map distance" between two vectors on the surface of a sphere. The vectors are assumed to be two dimensions, in the order of (lat, lon), and in degrees, as for locations on the Earth. The constructor takes "rin" which is the radius of the sphere.

Constructor Summary

Constructors

Constructor	Description
COptQuestKrigSphericalDistance()	Initialize the spherical distance calculator with the radius of the sphere

Method Summary

Modifier and Type	Method	Description
double	getDistance(double[] v1, double[] v2)	return the distance between two multi dimensional vectors in any arbitrary space.
double[]	getGradient(double[] v1, double[] v2, Double distance)
double[][]	getHessian(double[] v1, double[] v2, Double distance)
IKrigDistance	getProjection(int[] dims)
void	updateState(double[][] space)

Methods inherited from class java.lang.Object

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

Constructor Details

COptQuestKrigSphericalDistance

public COptQuestKrigSphericalDistance()

Initialize the spherical distance calculator with the radius of the sphere

Method Details

getDistance

public double getDistance(double[] v1,
 double[] v2)

return the distance between two multi dimensional vectors in any arbitrary space.

Specified by:

getDistance in interface IKrigDistance

Parameters:

v1 - - the one of the two vectors we're computing the distance between

v2 - - the other of the two vectors we're computing the distance between

getGradient

public double[] getGradient(double[] v1,
 double[] v2,
 Double distance)

Specified by:

getGradient in interface IKrigDistance

getHessian

public double[][] getHessian(double[] v1,
 double[] v2,
 Double distance)

Specified by:

getHessian in interface IKrigDistance

getProjection

public IKrigDistance getProjection(int[] dims)

Specified by:

getProjection in interface IKrigDistance

updateState

public void updateState(double[][] space)

Specified by:

updateState in interface IKrigDistance