org.apache.commons.math3.analysis.interpolation
Class MicrosphereInterpolatingFunction

java.lang.Object
  org.apache.commons.math3.analysis.interpolation.MicrosphereInterpolatingFunction

All Implemented Interfaces:

MultivariateFunction

public class MicrosphereInterpolatingFunction
extends Object
implements MultivariateFunction

Interpolating function that implements the Microsphere Projection.

Version:

$Id: MicrosphereInterpolatingFunction.java 7721 2013-02-14 14:07:13Z CardosoP $

Constructor Summary

MicrosphereInterpolatingFunction(double[][] xval, double[] yval, int brightnessExponent, int microsphereElements, UnitSphereRandomVectorGenerator rand)

Method Summary

double

value(double[] point) Compute the value for the function at the given point.

Methods inherited from class java.lang.Object

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

Constructor Detail

MicrosphereInterpolatingFunction

public MicrosphereInterpolatingFunction(double[][] xval,
                                        double[] yval,
                                        int brightnessExponent,
                                        int microsphereElements,
                                        UnitSphereRandomVectorGenerator rand)
                                 throws DimensionMismatchException,
                                        NoDataException,
                                        NullArgumentException

Parameters:

xval - Arguments for the interpolation points. xval[i][0] is the first component of interpolation point i, xval[i][1] is the second component, and so on until xval[i][d-1], the last component of that interpolation point (where dimension is thus the dimension of the sampled space).

yval - Values for the interpolation points.

brightnessExponent - Brightness dimming factor.

microsphereElements - Number of surface elements of the microsphere.

rand - Unit vector generator for creating the microsphere.

Throws:

DimensionMismatchException - if the lengths of yval and xval (equal to n, the number of interpolation points) do not match, or the the arrays xval[0] ... xval[n], have lengths different from dimension.

NoDataException - if there an array has zero-length.

NullArgumentException - if an argument is null.

Method Detail

value

public double value(double[] point)

Description copied from interface: MultivariateFunction

Compute the value for the function at the given point.

Specified by:

value in interface MultivariateFunction

Parameters:

point - Interpolation point.

Returns:

the interpolated value.