Rebol Programming/span?

= USAGE: = SPAN? pane /part count

= DESCRIPTION: = Returns a block of [min max] bounds for all faces

SPAN? is a function value. = ARGUMENTS =
 * pane -- (Type: block)

= REFINEMENTS =
 * /part
 * count -- Limit the number of faces (Type: integer)

= SOURCE CODE = span?: func [ "Returns a block of [min max] bounds for all faces" pane [block!] /part count [integer!] "Limit the number of faces" /local origin margin ][   origin: 100000x100000 margin: 0x0 foreach item pane [ if object? item [ if all [count negative? count: count - 1] [break] origin: min origin item/offset margin: max margin item/offset + item/size ]   ]     reduce [origin margin] ]