rectangle-union
left-1
top-1
right-1
bottom-1
left-2
top-2
right-2
bottom-2
=>
left
,
top
,
right
,
bottom
A real number.
A real number.
A real number.
A real number.
A real number.
A real number.
A real number.
A real number.
The
rectangle-union
function returns four values: the
left
,
top
,
right
and
bottom
of the union of the two rectangles specified in the arguments. The values input for the two rectangles are ordered by this function before it uses them.