int targetb = targety + target.getHeight();
int minx = Math.min(thisx, targetx) - ANCHOR_EXT;
int maxr = Math.max(thisr, targetr) + ANCHOR_EXT;
if (Math.abs(dby - targetb) < THRESHOLD_DISTANCE) {
List<Quartet> list = new ArrayList<Quartet>();
Quartet trio = new Quartet(targetb, targetb, minx, maxr, new HorizontalBottomAlignAnchor(target));
list.add(trio);
return list;
} else if (Math.abs(tb - sb) < THRESHOLD_DISTANCE) {
List<Quartet> list = new ArrayList<Quartet>();
int dh = dropBaseline.getHeightByBaseline(tb - sp.y);