Convert a 4d array to a list of 3d point sets.
The points are formed by extracting the coordinates of array values strictly above the given cut-off (default 0).
Usage
ary2ps(ary, bkg = 0)
Value
a list of point sets.
Arguments
ary
a 4d array with last dimension indexing instances.
bkg
Extract points for array values strictly above this (default = 0)