ns-ui / bowditch-close

Close the loop like a real traverse

Six corners were walked and the closing sight landed short of the start — that gap is the misclosure, drawn as an accent hairline, never auto-snapped shut. Balance runs the 1807 compass rule: the error is spread across every leg in proportion to how far it ran, so the long final leg absorbs most of the correction and vertex 0 never moves.

arrow keys nudge a focused corner · Balance traverse closes the gap