Match a moving box's selected edge/center features against candidate guide
lines. Returns the per-axis snap delta and the matched candidate line(s).
The two axes resolve independently; on each axis the closest in-tolerance
(feature, candidate) pair wins.
Match a moving box's selected edge/center features against candidate guide lines. Returns the per-axis snap delta and the matched candidate line(s). The two axes resolve independently; on each axis the closest in-tolerance (feature, candidate) pair wins.