Hybrid Sweep
It combines linear and/or non-linear sweep via set operations. In this case, two point sets are swept in two different directions and the two resulting swept volumes are glued together to form the final object. Invalid solids or non-regular sets may result if the sweeping direction is not chosen properly. Sweeping operations are useful in engineering applications that involve swept volumes in space. Two widely known applications are simulations of material removal due to machining operations and interference detection of moving objects in space.