Usually

the construction of 3D Chinese character mainly applies the sweeping principle--that is

the stroke of 3D Chinese character is generated by variational sections sweeping the center line of its 2D stroke. This method exists defects as follow: difficult expression in abundantly variational strokes of Chinese character and huge data in description of the stroke. For this reason

based on the principle of layer-manufacturing in Rapid Prototyping (RP)

that is--any 3D Chinese character can be considered as 2D section accumulated layer by layer

this paper put forward a new method to constitute 3D Chinese character by 2D Chinese character. By applying the theory of Voronoi diagram

the offsets of each layer

which are the skeleton of surface of 3D stroke

are automatically generated by basic 2D stroke contours

which is expressed to double circle link table whose node is coordinate vertex of this contour. By making those contours as skeleton and then interpolating block by block in Bezier-B blend spline surfaces

a 3D stroke of Chinese character is constituted and then a 3D Chinese character is composed by this strokes. In the paper

a actual example of 3D Chinese character is displayed at last

and this new method shows that constitution of 3D Chinese character based on layer-manufacturing can more plentifully express the Chinese stroke

and overcome the problem of huge data capacity and distortion when a 3D Chinese character is magnified.