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neuroim2 (version 0.8.5)

coord_to_index: convert n-dimensional real world coordinates to 1D indices

Description

convert n-dimensional real world coordinates to 1D indices

Usage

coord_to_index(x, coords)
# S4 method for NeuroSpace,matrix
coord_to_index(x, coords)
# S4 method for NeuroSpace,numeric
coord_to_index(x, coords)
# S4 method for NeuroVol,matrix
coord_to_index(x, coords)

Value

An integer vector of 1D indices corresponding to coords.

Arguments

x

the object

coords

a matrix of real world coordinates

Examples

Run this code
bvol <- NeuroVol(array(0, c(10,10,10)), NeuroSpace(c(10,10,10), c(1,1,1)))
coords <- matrix(c(.5,.5,.5, 1.5,1.5,1.5), ncol=3, byrow=TRUE)
idx <- coord_to_index(bvol, coords)
coords2 <- index_to_coord(bvol, idx)
all.equal(coords, coords2)

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