Paper-cutting is one of the most fantastic Chinese folk arts.With the aid of computers,digital paper-cutting has become a popular topic in the field of NPR rese
In the last two decades,tangible user interfaces(TUIs) have emerged as a new interface type that interlinks the digital and physical worlds.TUIs show a potentia
In CAGD and CG,energy model is often used to control the curves and surfaces shape.In curve/surface modeling,we can get fair curve/surface by minimizing the ene