Xref: utzoo comp.graphics:1402 sci.math:2533 Path: utzoo!utgpu!water!watmath!clyde!rutgers!ucla-cs!zen!ucbvax!hplabs!sdcrdcf!trwrb!simpson From: simpson@trwrb.UUCP (Scott Simpson) Newsgroups: comp.graphics,sci.math Subject: Re: Spline Algorithms (for the mathematically inclined) Keywords: Algorithms, Splines Message-ID: <4141@trwrb.UUCP> Date: 17 Dec 87 20:12:50 GMT References: <4090@trwrb.UUCP> Reply-To: simpson@trwrb.dsd.trw.com.UUCP (Scott Simpson) Organization: TRW SDS, Redondo Beach, CA Lines: 16 Spencer Thomas of the University of Utah answered my question. It seems I was using the wrong knot vector. If you use the knot vector { 0 if j < t u = { j-t+1 if t<=j<=n j { n-t+2 if j>n where t-1 is the degree of your polynomial and n+1 is the number of control points it seems to work. Many others volunteered valuable references to spline books for computer programmer idiots like myself. Stu Friedberg at Rochester sent me a bunch of spline code. To all of you, thanks a lot! -- Scott Simpson TRW Space and Defense Sector ...{decvax,ihnp4,ucbvax}!trwrb!simpson (UUCP) trwrb!simpson@trwind.trw.com (ARPA)