The Research of the Approximate Algorithm Based on Cubic B-spline Curves

B-Spline curves are very flexible; it overcomes lots of shortcomings of Bezier curves. It is of great value in practical applications. This thesis is based on the approximate algorithm offered by literature [1]. In this paper, we promote the algorithm in literature [1] to the cubic B-Spline curve approximate fields which is based on the double quadratic B-Spline curves. With this paper´s algorithm, it can not only avoid the disadvantage of the traditional interpolation algorithms and the approximate algorithms but also combine the advantage of the traditional interpolation algorithms and the approximate algorithms.