R: Matrix/Array Interpolation

interpolate_array {rayimage} | R Documentation

## Matrix/Array Interpolation

### Description

Given a series of X and Y coordinates and an array/matrix, interpolates the Z coordinate using bilinear interpolation.

### Usage

    interpolate_array(image, x, y)

### Arguments

`image` | Image filename, a matrix, or a 3-layer RGB array.
`x` | X indices (or fractional index) to interpolate.
`y` | Y indices (or fractional index) to interpolate.

### Value

Either a vector of values (if image is a matrix) or a list of interpolated values from each layer.

### Examples

    #Interpolate a matrix
    interpolate_array(volcano,c(10,10.1,11),c(30,30.5,33))
    #Interpolate a 3-layer array (returns list for each channel)
    interpolate_array(dragon,c(10,10.1,11),c(30,30.5,33))

[Package rayimage version 0.3.1 Index]