But don't use the name 'points' if, in fact, the argument represents an area or a rectangle.  I think I'd use 'rect' here.
The comment should specify what kind of object the argument is and what the coordinate system is.  You can probably call these -1000,1000 coordinates "camera coordinates" to distinguish them from "screen coordinates" or "pixel coordinates". Having clear names for these things will help you think clearly about them and might help with the refactoring referenced below.