xyzpos converts pixel coordinates to physical coordinates

ijkpos converts physical coordinates to pixel coordinates

xyzpos(d, ijk)

ijkpos(d, xyz, roundToNearestPixel = TRUE)

Arguments

d

An im3d object defining a physical space

ijk

an Nx3 matrix of pixel coordinates (1-indexed)

xyz

Nx3 matrix of physical coordinates

roundToNearestPixel

Whether to round calculated pixel coordinates to nearest integer value (i.e. nearest pixel). default: TRUE

Value

Nx3 matrix of physical or pixel coordinates

See also

Examples

# make an emty im3d d=im3d(,dim=c(20,30,40),origin=c(10,20,30),voxdims=c(1,2,3)) # check round trip for origin stopifnot(all.equal(ijkpos(d,xyzpos(d,c(1,1,1))), c(1,1,1)))