Compute the boolean difference of two simple blueprints (first minus second).
Segments the blueprints at their intersections, keeps segments of the first
that are outside the second, and segments of the second that are inside the
first (reversed to form the boundary of the cut).
Compute the boolean difference of two simple blueprints (first minus second).
Segments the blueprints at their intersections, keeps segments of the first that are outside the second, and segments of the second that are inside the first (reversed to form the boundary of the cut).