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Convert physical coordinates to 1d indices into image array

Usage

c_coords21dindex(xyz, origin, voxdims, dims, clamp = FALSE)

Arguments

xyz

Nx3 matrix or data.frame of physical coordinates

origin

Numeric: 3d coordinates of the origin

voxdims

Numeric: 3 numbers describing the voxel dimensions

dims

Integer dimensions of the 3d image array

clamp

Logical: whether or not to clamp values within the pixel boundaries of the image.

Value

Nx3 integer matrix of pixel coordinates