POSL

POSL is a CAOS function used to check where the leftmost part of an object is, in terms of its bounding box.

Function
Syntax: POSL (float)

Returns left position of target's bounding box.

Examples
From Making a Vendor for C3, used to find the point where the object will come out of the vendor: setv va00 posl addv va00 30 setv va01 post addv va01 10

Note the addition will draw the final vend-point rightwards from that leftmost position.