Study on interpolation approach for 3d parametric curve 三維參數(shù)化曲線插值方法研究
A kind of definition of curvatures on discrete parametric curves net 關于離散參數(shù)曲線網上曲率的一種刻畫
Implicitization of parametric curves 參數(shù)曲線的隱式化
The degree reduction of parametric curves / surfaces is a key problem for computer aided geometric designed ( cagd ) 參數(shù)曲線曲面降階是計算機輔助幾何設計與制造中的研究熱點之一。
The experimental result shows that the parametric curve of uniform interpolation in less than 6 rank is better in performance 實驗表明,采用低階(一般小于6階)參數(shù)插值方程實現(xiàn)連接,效果好。
By analyzing the existing algorithms, we present a new pixel-level algorithm for generating parametric curves by dividing the segments 對此,我們在現(xiàn)有參數(shù)曲線逐點生成算法的基礎上,提出了一個新的分段繪制參數(shù)曲線的方法。
For the pixel-level generation of parametric curves, we find that the point densities chosen by the existing algorithms are not even along the curves 對于其中的參數(shù)曲線的逐點生成,目前的算法在繪制曲線的過程中會出現(xiàn)所繪制點疏密不均的現(xiàn)象。
Next, in the interior of the patches, surface fitting points and cross boundary derivatives are estimated from the reference curves by constructing virtual iso-parametric curves 其次,在曲面片內部,曲面擬合點和邊界方向導數(shù)可以從參考曲線中通過構建虛擬等參線的方法得到。
Therefore . the thesis discusses the problem of smooth deformation parametric . solving method is to realize smooth merging of parametric curve by smoothing parametric curve 這樣,本文又討論了參數(shù)曲線的光滑變形問題,解決的方法就是通過參數(shù)曲線的磨光法實現(xiàn)參數(shù)曲線的光滑度。
Therefore . the thesis discusses the problem of smooth deformation parametric . solving method is to realize smooth merging of parametric curve by smoothing parametric curve 這樣,本文又討論了參數(shù)曲線的光滑變形問題,解決的方法就是通過參數(shù)曲線的磨光法實現(xiàn)參數(shù)曲線的光滑度。