polygon curve 中文意思是什麼

polygon curve 解釋
多角曲線
  • polygon : n. 【幾】多邊形，多角形。 a regular polygon 正多邊形。adj. -lygonal 多邊多角形的（地面龜裂）。
  • curve : n 1 曲線；彎曲；彎曲物。2 曲線規 （＝French curve）；【機械工程】曲線板；【棒球】曲線球；【統計學...
  1. Finally, the convexity - concavity of the closed curve is detected. in the end, choi ' s pair - wise offset of polygon algorithm is improv ed based on the proposed curve intersection algorithm

    文章最後完善了choi多邊形等距偏移演算法，並把本文提出的封閉曲線求交方法應用其中，用於自交點的確定。
  2. The parametric speed of the curve is firstly approximated by the bezier polynomial which takes the lengths of control polygon ' s edges of the direction curve of normal as bezier coordinates. then the corresponding geometric offset approximation algorithm is given. moreover, an offset approximation with high precision is obtained by degree elevation of the direction curve of normal

    首先利用以法矢方向曲線的控制多邊形邊長為b zier縱標的b zier多項式來逼近曲線的參數速度，給出了相應的幾何等距逼近演算法，進一步結合法矢方向曲線的升階獲得了高精度逼近
  3. The constructed curve was shape - preserving to the polygon

    所構造的曲線對多邊形具有保形性。
  4. In the forth chapter, we proposes an approach of constructing planar piecewise bezier curve of 3rd 4th and 6th degree with all edges tangent to a given control polygon and the curve segments are joined together with c1 c2 and c3 - continuity. the segmented bezier curves are all shape - preserving to their tangent polygon

    第四章討論與給定多邊形相切的分段三次、四次、六次b zier曲線，所構造的曲線c ~ 1 、 c ~ 2 、 c ~ 3 -連續，並且對切線多邊形是保形的。
  5. To fulfill the need of the application of rp technique in medical domain, reverse cad modeling from medical cross sections is systematically studied in this dissertation. firstly, some algorithms related to the research of this dissertation are studied. new algorithms for orientation and inclusion test for simple polygon, an error constrained automatic faring algorithm for b - spline curve and a theorem regarding the termination criterion for subdivision of triangular bezier patch are proposed

    本文針對rp技術在醫學領域應用的需要，系統研究了基於醫學斷層輪廓數據的反求cad建模理論和方法： （ 1 ）在基礎演算法研究部分，提出了簡單多邊形方向及點在多邊形內外判斷的新方法、三角b zier曲面片離散的誤差控制定理和一種帶誤差約束的b樣條曲線的自動光順方法； （ 2 ）提出了一種基於相鄰層輪廓相似性的醫學斷層輪廓數據曲面重構方法； （ 3 ）提出了一種稱為「虛擬測量」的曲面模型處理方法。
  6. An algorithm for constructing rational spline closed curve which is tangent to the given polygon is described

    摘要描述了一種與給定多邊形相切的有理樣條閉曲線的演算法。
  7. In this paper, an algorithm for constructing rational spline curve, which was tangent to the given polygon, was described

    摘要描述了一種與給定多邊形相切的有理樣條曲線的演算法。
  8. In the first chapter, we introduce the concept and properties of the bezier curves. the question of continuity and modification of the bezier curves is given. and we introduce the context and produce of the question of the taffeta curve with given tangent polygon

    第一章綜述已有的結果，介紹了b zier曲線的定義及其基本性質，指出b zier曲線存在的連接和修改問題，並介紹了與給定多邊形相切的光滑曲線問題的背景和已有成果。
  9. The main achievements are as follows : 1. based on the idea to blend a nuat b - spline curve with a singularly parameterized polygon according to parameter, a local interpolation method is presented for nuat b - spline curve, by which a c ~ 2 nuat b - spline interpolating curve of order 4 without solving a global linear system of equations is generated. 2

    主要研究結果如下: 1 .提出了一種局部插值方法，將一條nuatb樣條曲線和一個奇異參數化多邊形按混合因子相混合，不需求解方程組就能生成一條c ~ 2連續的四階nuatb樣條混合插值曲線
  10. This paper researches the basic algorithms of computer graphics including the algorithms of an efficient algorithm for polygon clipping and pixel - level algorithm for generating archimedes and ivolute curve

    本文的工作是對計算機圖形學中的基礎演算法進行研究。包括一個有效的多邊形裁剪演算法，以及阿基米德曲線及圓的漸開線的逐點生成演算法。
  11. The discrete optimization of boundary curve and the optimization of polygon clipping are discussed on the basis of the above research, this surface automatic mesh generation have applied to cae software successfully which can create high quality element. the method is steady and reliable. the speeding of the meshing is good

    在上述技術研究的基礎上，將曲面自動網格劃分演算法成功應用於板料成形模擬的cae軟體中，該演算法具有自適應能力強，網格生成速度快，穩定可靠等優點。
  12. 2. we introduced a new polygon periodic discrete curvature function based on curve continue curvature concept in 2d contour matching, the periodic discrete curvature has local, rotation and translation invariant. applying efficient techniques to find the proper matching substrings, we also applied the hashing technique to find long matching substrings

    周期性離散曲率函數具有和原有曲率相似的位移、旋轉、縮放等特性，為提高匹配的準確度，利用高斯函數進行平滑處理，取得了較好的結果，同時該方法具有直觀、速度快等優點，在2d輪廓曲線的匹配中，具有實用可靠的用途。
  13. The author acquires three main results, i. e. an approach of constructing polynomial curves with some shape parameters, c2 - continuous spline curves of degree 4 with some shape parameter, and planar piecewise bezier curve of 3 4th and 6th degree with given control polygon and the curve segments are joined together with c1 c2 and c3 - continuity

    作者在後三章得到了本文的三個主要結果： （ 1 ）構造了一種帶形狀參數的多項式曲線； （ 2 ）構造了一類c ~ -連續帶形狀參數的四次樣條逼近曲線； （ 3 ）構造了與給定多邊形相切的可調控保形分段c ~ 1三次、 c ~ 3六次b zier樣條曲線。
  14. In the algorithm, the convexity - concavity of vertexes and arcs must be identified, and a fast approach for identifying the convexity - concavity of line - arc closed curve is proposed. firstly, the orientation of a closed - curve is determined by constructing a new convex polygon. secondly, by using the orientation of the closed curve the convexity - concavity of vertices and arcs are identified

    在演算法實現過程中，由於需要對圓弧和直線段組成的封閉曲線的頂點、圓弧的凸凹性進行判定，本文提出了一個圓弧和直線段組成的封閉曲線凸凹性快速判定方法，該方法首先通過構造一中介凸多邊形求出封閉曲線的方向，然後根據封閉曲線方向確定頂點及圓弧的凸凹性，進而確定封閉曲線的凸凹性。
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