In this paper, we rewrote the equation of algebraic curve segments with the geometric information on both ends. The optimal or nearly optimal rational parametri
The problem of determining a minimum-area ellipse through three non-collinear points is discussed in this paper. We give the proof and construction of the minim
Based on a virtual spherical light source method, this paper presents an improved virtual spherical lights approach for glossy illumination by modifying a refle
Distinguishing with traditional tooth profile of spiral bevel and hypoid gear, it proposed a new tooth profile namely the spherical involute. Firstly, a new the