Package com.flarerobotics.lib.math

Class BilinearInterpolator2D

java.lang.Object

com.flarerobotics.lib.math.BilinearInterpolator2D

public class BilinearInterpolator2D
extends Object

A generic 2D bilinear interpolator over an axis-aligned grid. Takes in a matrix input, and outputs a double corresponding to the interpolated result.

Constructor Summary

Constructors

Constructor	Description
BilinearInterpolator2D(double[] X, double[] Y, double[][] V)	Constructs a new BilinearInterpolator2D.

Method Summary

Modifier and Type	Method	Description
double	interpolate(double x, double y)	Perform bilinear interpolation at (x, y).

Methods inherited from class java.lang.Object

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

Constructor Details

BilinearInterpolator2D

public BilinearInterpolator2D(double[] X,
 double[] Y,
 double[][] V)

Constructs a new BilinearInterpolator2D.

(Row i -> X[i], Col j -> Y[j])

Parameters:

X - Sorted X-axis grid of length M

Y - Sorted Y-axis grid of length N

V - MxN matrix of values: V[i][j] = f(X[i], Y[j])

Method Details

interpolate

public double interpolate(double x,
 double y)

Perform bilinear interpolation at (x, y).

- If x or y is outside grid boundaries, extrapolates using nearest segment

Parameters:

x - The X coordinate.

y - The Y coordinate.

Returns:

The interpolated value at (x, y).