Split at a breakpoint whenever the distance between two adjacent points exceeds a fixed threshold D_max · O(n) · first-quadrant 90° FoV · 1° step scan.
D_max around pₙ₋₁
White dot = LiDAR origin · first-quadrant 90° FoV · 1° step · point inside the circle = same cluster · outside = breakpoint
At far corners/walls, when point spacing exceeds D_max, even a single wall splits into several pieces (over-segmentation)