org.hipparchus.analysis.interpolation

Interface BivariateGridInterpolator

All Known Implementing Classes:

BicubicInterpolator, BilinearInterpolator, PiecewiseBicubicSplineInterpolator

public interface BivariateGridInterpolator

Interface representing a bivariate real interpolating function where the sample points must be specified on a regular grid.

Method Summary

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

Method Detail

interpolate

BivariateFunction interpolate(double[] xval,
                              double[] yval,
                              double[][] fval)
                       throws MathIllegalArgumentException

Compute an interpolating function for the dataset.

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.

Throws:

MathIllegalArgumentException - if any of the arrays has zero length.

MathIllegalArgumentException - if the array lengths are inconsistent.

MathIllegalArgumentException - if the array is not sorted.

MathIllegalArgumentException - if the number of points is too small for the order of the interpolation