Extracting quadric surface from measured data is an important problem in reverse engineering of mechanical parts 摘要在機械產(chǎn)品的逆向工程中,針對測量數(shù)據(jù)提取常用二次曲面是非常重要的。
This paper proposes for the first time to use genetic algorithm based on real - number - coding to extract quadric surface 首次提出利用基于實數(shù)編碼的遺傳算法針對離散數(shù)據(jù)點進行二次曲面提取。
Abstract an algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented 摘要提出了基于二次曲面擬合誤差分析和幾何屬性分析的特征曲面識別算法。
The connection quadric exploit is a quite active application domain of present structure computation model updating technology research 接口二次開發(fā)是目前結(jié)構(gòu)有限元模型修正技術(shù)比較活躍的一個應(yīng)用領(lǐng)域。
A simple method of solving an orthogonal transformation with a primary transformation is presented by change quadric form into canonical form 給出了利用初等變換求一個正交變換化實二次型為標準形的簡便方法。
8 warren j . blending quadric surfaces with quadric and cubicsurfaces . in proceedings of the 3rd symposium on computationalgeometry 而且適用這種方法的管道曲面在形狀及空間相對位置上有很大的限制,因此不便于實踐運用。
Abstract : a simple method of solving an orthogonal transformation with a primary transformation is presented by change quadric form into canonical form 文摘:給出了利用初等變換求一個正交變換化實二次型為標準形的簡便方法。
6 dahmen w . smooth piecewise quadric surfaces . mathematical methods in computer aided geometirc design . t . lyche and l . schumaker eds . , 此外,高和李采用了blending方法來生成隱式插值曲面,而turk和o brein采用變分方法來構(gòu)造。
Similarly , they not only can represent straight lines precisely , but also can represent quadric curve precisely , such as hyperbola and so on 該曲線與tc - b zier曲線的性質(zhì)完全類似,此外它既能精確表示直線段又能精確表示雙曲線。
A new algorithm is presented in this paper for piecewise quadric b - splines curve reconstruction from scattered data in a plane 摘要基于控制頂點擾動的思想提出了一種新的曲線重構(gòu)算法,用于構(gòu)造一條分段二次b樣條曲線來逼近平面上的散亂數(shù)據(jù)點。