When cleaning up multiple wall intersections, projected walls are trimmed or extended to adjacent walls that can act as boundary walls. Only selected wall segments participate in cleanup.
When a projected wall segment intersects a boundary wall, the shorter wall segment is trimmed. Since the projected wall distance 1 is shorter than the projected wall distance 2, the projected wall 1 segment is trimmed.
If the projected wall distance is less than half of the total distance between boundary walls, the wall is trimmed to the first boundary wall. If the projected wall distance is equal to or more than half of the total distance between boundary walls, the wall is extended to the second boundary wall.
Clean up multiple wall intersections by selecting all of the wall segments.
