Incoming links: Point
Input:
- background color
- boxes
- points inside boxes
- distance between point and box
Input: three or more containers:
- one touching top left corner
- inside it there are three monocolor objects
- one touching bottom right corner of toplevel box
- inside it there is one monocolor object
- outside of those, touching the left toplevel box edge, there is one or more point
Output:
- draw dotted path of perpendicular line