Package org.apache.commons.math4.analysis.interpolation

Interface BivariateGridInterpolator

All Known Implementing Classes:

BicubicInterpolator, 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	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 NoDataException,
                              DimensionMismatchException,
                              NonMonotonicSequenceException,
                              NumberIsTooSmallException

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:

NoDataException - if any of the arrays has zero length.

DimensionMismatchException - if the array lengths are inconsistent.

NonMonotonicSequenceException - if the array is not sorted.

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