查詢結果分析
來源資料
頁籤選單縮合
題 名 | B2木條曲線特性之研究=A Study on Properties of B2-Spline Curves |
---|---|
作 者 | 郭真祥; 莊健青; | 書刊名 | 國立臺灣大學工程學刊 |
卷 期 | 71 1997.10[民86.10] |
頁 次 | 頁29-41 |
分類號 | 444.1 |
關鍵詞 | B木條曲線; B2木條曲線; 局部形狀控制性; B-spline curves; B2-spline curves; Local shape control; |
語 文 | 中文(Chinese) |
中文摘要 | 在電腦輔助幾何設計中,曲線的表示或設計有許多種不同的方法。對於自由形狀曲線的形成,B木條曲線(B-splines)為常使用的方法之一。但是B木條曲線在內插時常會有不能完全表達所要求曲線形狀的情形,因此以B木條曲線為基本觀念,加以改良將B 木條曲線分成兩段,而得到另一種新型的曲線稱之為B2木條曲線(B2-splines)。B2木條曲線較B木條曲線有更好的局部控制性,可以通過同一組資料點產生局部幾何特性如斜率或曲率不同的曲線。使用介面是採交談式,以增加曲線形狀設計時的準確性和方便性。 |
英文摘要 | In the field of Computer Aided Geometric Design, there are many methods which can be used for representation or design of curves. Regarding the generation of free form curves, B-spline curve is one of the often used methods. Problems are eccountered when applying B-splines for interpolating a curve, they can not reproduce some specified local curve shapes very well. B2-spline curves are constructed by dividing a B-spline curve segment into two subsegments for improving drawbacks of the normal B-splines. B2-spline curves have even better local shape control properties. With a set of given data points, it is possible not only to create a curve passing all of them but also specify some geometrical properties such as slopes or curvatures at them. |
本系統中英文摘要資訊取自各篇刊載內容。