bbox

overlap(box1, box2)

fromcwh(c, wh)

frompoints(points)

topoints(bb)

tocwh(bb)

towh(bb)

pointin(bb, p)

move(bb, pos)

expand(oldbb, x)

blwh(bl,wh)

Bounding box from (bottom left, width height)

fromobjs(objs)