Function formatM

js/main.js:2802–2806

(n)

    }
  }
}

function updateBucketHover(e) {
  const triIdx = pickTriangle(e);
  if (triIdx === _lastHoverTriIdx) return; // unchanged — skip expensive BFS
  _lastHoverTriIdx = triIdx;
  if (triIdx < 0 || !triangleAdjacency) {
    setHoverPreview(null);