boostmath (version 1.4.0)

bilinear_uniform: Bilinear Uniform Interpolator

Description

Constructs a bilinear uniform interpolator given a grid of data points.

Usage

bilinear_uniform(x, rows, cols, dx = 1, dy = 1, x0 = 0, y0 = 0)

Value

An object of class bilinear_uniform with methods:

• interpolate(xi, yi): Evaluate the interpolator at point (xi, yi).

Arguments

x

Numeric vector of all grid elements

rows

Integer representing the number of rows in the grid

cols

Integer representing the number of columns in the grid

dx

Numeric value representing the spacing between grid points in the x-direction, defaults to 1

dy

Numeric value representing the spacing between grid points in the y-direction, defaults to 1

x0

Numeric value representing the x-coordinate of the origin, defaults to 0

y0

Numeric value representing the y-coordinate of the origin, defaults to 0

Examples

x <- seq(0, 1, length.out = 10)
interpolator <- bilinear_uniform(x, rows = 2, cols = 5)
xi <- 0.5
yi <- 0.5
interpolator$interpolate(xi, yi)