As far as parametric curves and surfaces are concerned, we discuss the point-by-point generating algorithms for parametric polynomial curves, parametric rational curves and parametric polynomial surfaces 對于參數(shù)曲線曲面,介紹了參數(shù)多項式曲線,有理參數(shù)曲線和參數(shù)多項式曲面的逐點生成算法,這些算法能廣泛地應用于實際。