BilinearInterpolator (Hipparchus 3.0 API)

java.lang.Object
- org.hipparchus.analysis.interpolation.BilinearInterpolator

All Implemented Interfaces:

BivariateGridInterpolator
```
public class BilinearInterpolator
extends Object
implements BivariateGridInterpolator
```
Interpolate grid data using bi-linear interpolation.

Since:

1.4

Constructor Summary

Constructors
Constructor Description

BilinearInterpolator()
Empty constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BilinearInterpolatingFunction`	`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
  - BilinearInterpolator
```
public BilinearInterpolator()
```
    Empty constructor.
    This constructor is not strictly necessary, but it prevents spurious javadoc warnings with JDK 18 and later.
    
    Since:
    
    3.0
- Method Detail
  - interpolate
```
public BilinearInterpolatingFunction interpolate(double[] xval,
                                                 double[] yval,
                                                 double[][] fval)
                                          throws MathIllegalArgumentException
```
    Compute an interpolating function for the dataset.
    
    Specified by:
    
    interpolate in interface BivariateGridInterpolator
    
    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.