提出了一种新的细分算法——六点Binary逼近细分法.利用生成多项式等方法对细分法的一致收敛性和C^k连续性进行了分析 ,通过对细分法中张力参数μ的不同取值 ,极限曲线可达到C^0 - C^7连续 .特别是当μ=11/1024时 ,极限曲线可达到C^9连续 .数值算例表明 ,该方法是合理有效的 .
A binary six-point approximating subdivision scheme is presented . Using the generating polynomial method ,the uniform convergence and C^k-continuity of subdivision scheme are analyzed .The subdivision scheme can be used to generate a family of C^k ( k = 1 ,2 ,…7 ) limit curves in certain range of tension parameter μand C^9 limit curves forμ= 11/1024 .The numerical examples show that the proposed method is proper and effective .