Returns the modified Minuend Input so that all objects positioned at a certain distance from Subtrahend Input objects are removed.
Subtracting stones from pines removes all pine objects within range of 5
Input - minuend, the object list (hash) whose objects will be removed.
Subtrahend - a reference hash that defines which minuend objects will be removed. This object list (hash) is not changing and is not included in output.
Output - a minuend object list (hash) with the defined objects removed
Distance: if the distance between the minuend and any of the subtrahend objects is closer than this value, the object will not be included in the output(i.e. it will be removed). Note that the distance is measured in map resolution units, not in world units.
Size Factor: makes a distance dependable from closest subtrahend object’s size. Useful for clearing areas around objects whose size may vary(like stones).