fr.cnes.sirius.patrius.math.analysis.interpolation

Class SmoothingPolynomialBicubicSplineInterpolator

java.lang.Object

fr.cnes.sirius.patrius.math.analysis.interpolation.BicubicSplineInterpolator

fr.cnes.sirius.patrius.math.analysis.interpolation.SmoothingPolynomialBicubicSplineInterpolator

All Implemented Interfaces:

BivariateGridInterpolator

public class SmoothingPolynomialBicubicSplineInterpolator
extends BicubicSplineInterpolator

Generates a bicubic interpolation function. Prior to generating the interpolating function, the input is smoothed using polynomial fitting.

Since:

2.2

Version:

$Id: SmoothingPolynomialBicubicSplineInterpolator.java 18108 2017-10-04 06:45:27Z bignon $

Constructor Summary

Constructors

Constructor and Description
SmoothingPolynomialBicubicSplineInterpolator() Default constructor.
SmoothingPolynomialBicubicSplineInterpolator(int degree)
SmoothingPolynomialBicubicSplineInterpolator(int xDegreeIn, int yDegreeIn)

Method Summary

Modifier and Type	Method and Description
BicubicSplineInterpolatingFunction	interpolate(double[] xval, double[] yval, double[][] fval) Compute an interpolating function for the dataset.

Methods inherited from class java.lang.Object

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

Constructor Detail

SmoothingPolynomialBicubicSplineInterpolator

public SmoothingPolynomialBicubicSplineInterpolator()

Default constructor. The degree of the fitting polynomials is set to 3.

SmoothingPolynomialBicubicSplineInterpolator

public SmoothingPolynomialBicubicSplineInterpolator(int degree)

Parameters:

degree - Degree of the polynomial fitting functions.

SmoothingPolynomialBicubicSplineInterpolator

public SmoothingPolynomialBicubicSplineInterpolator(int xDegreeIn,
                                                    int yDegreeIn)

Parameters:

xDegreeIn - Degree of the polynomial fitting functions along the x-dimension.

yDegreeIn - Degree of the polynomial fitting functions along the y-dimension.

Method Detail

interpolate

public BicubicSplineInterpolatingFunction interpolate(double[] xval,
                                                      double[] yval,
                                                      double[][] fval)

Compute an interpolating function for the dataset.

Specified by:

interpolate in interface BivariateGridInterpolator

Overrides:

interpolate in class BicubicSplineInterpolator

Parameters:

xval - All the x-coordinates of the interpolation points, sorted in increasing order.

yval - All the y-coordinates of the interpolation points, sorted in increasing order.

fval - The values of the interpolation points on all the grid knots: fval[i][j] = f(xval[i], yval[j]) .

Returns:

a function which interpolates the dataset.