樣條曲面 的英文怎麼說
中文拼音 [yàngtiáoqūmiàn]
樣條曲面
英文
linesurface- 樣 : Ⅰ名詞1. (形狀) appearance; shape 2. (樣品) sample; model; pattern Ⅱ量詞(表示事物的種類) kind; type
- 條 : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
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Then the forging blade body is formed by fitting the data of forging blade to spline and b - surface, calling the rabbet and boss, generating the draft angle. then the related parameter is calculated
將鍛件型面數據擬合成樣條曲線、樣條曲面,調入榫頭和凸臺,作出模鍛斜度,生成葉片鍛件實體,並計算了鍛件的相關參數。9 greiner g, seidel h p. modeling with triangular b - splines
這也直接影響了三角b樣條曲面的視覺效果。Computer aided geometric design, 1989, 6 : 323 - 358. 7 seidel h p. symmetric recursive algorithms for surfaces : b - patches and the de boor algorithm for polynomials over triangles
2三角b樣條曲面的曲率分佈具有「節點線」現象,也就是說在其曲率在三角面片的邊界上有「聚集」現象。Then a high - degree geometric continuity blending surface is obtained with transfinite interpolate method. ( e ) g3 blending surface with approximation can be constructed by lofting if geometric invariant errors are given, the surface can be converted to b - spline, nurbs form for the purpose of system aggregation
最後,為滿足曲面造型系統集成的需要,在保證曲率、曲率導數和撓率精度情況下,將上述研究結果應用於曲面放樣逼近方法,得到參數過渡曲面轉換成b樣條曲面或nurbs曲面的形式。Auto - adapted fitting algorithm of b - spline surface objects
樣條曲面自適應擬合演算法An algorithm to generate bi - cubic b - spline surfaces
樣條曲面的生成方法Smooth joining between adjacent b - spline surfaces
樣條曲面的光滑拼接Evaluation algorithm and knot insertion algorithm for b - spline surfaces
樣條曲面的求值和節點插入演算法研究Fair fitting method of b - spline surface and computation of fitting precision for sectional points
樣條曲面光順擬合及其精度計算Secondly, an improved approach for fairing of bi - cubic b - spline surface is presented
提出了一種改進的雙三次b樣條曲面光順方法。Finally, a discrete g 1 continuous b - spline surface is generated by a surface fitting algorithm
最後,通過曲面擬合演算法得到離散g 1連續的b樣條曲面。The problem of triangular mesh based c2 - continuous piecewise bi - cubic b - spline surface reconstruction has been studied
對分片雙三次b樣條曲面重建問題進行了研究。This uniform resample of data points in rectangular region and fitting of piecewise smooth b - spline surfaces are explored
研究了矩形區域內數據點的重新均勻采樣以及光滑分片b樣條曲面的擬合問題。Hole repairing in triangular mesh models and piecewise smooth b - spline surfaces fitting have been studied in this dissertation
本文對三角網格模型上的孔洞修補及分片光滑b樣條曲面的擬合技術進行了研究。This thesis gives a brief account of the basic theories of software engineering and computer graphics, of the data structure of individual component modeling, of the design of the software structure and of the method of realizing software. meanwhile, this thesis put more emphasis on the exploration of the arithmetic of the delaunay triangle network, nurbs curve integration, the filling - in arithmetic of triple - tree, and the arithmetic based on the scan - line arithmetic and the filling - in of complex section
文章介紹了關于軟體工程學與計算機圖形學的基本理論及其各組件模型的數據結構、軟體結構設計與軟體實現的技術方法,並重點討論了基於約束條件的delaunay三角網格化演算法、 nurbs (非均勻有理b樣條)曲面擬合、三叉樹等值線填充演算法和基於掃描線的復雜剖面填充演算法。Then this dissertation implements most of algorithm of non - uniform b - spline surface such as positive calculation, reverse calculation, knot interposer etc. based on the g0, g1 continuous conditions of uniform bicubic b - spline surface, the paper deduces the g0, g1 continuous conditions in the surface reverse calculation then implements it for each face. the last step is the data exporting
然後運用非均勻b樣條曲面反算構造插值曲面,研究了雙三次非均勻b樣條曲面反算過程中的g ~ 0 , g ~ 1連續條件,並根據該條件針對不同的表面給出了相應的連續策略,實現了各曲面間的g ~ 0或g ~ 1連續。Nurbs surfaces with single interior knots are simple and used widely. the thesis main aims at biuquartic, biquintic, k x fc - degree b - spline surfaces and bicubic nurbs with single interior knots. one of the contributions is to apply knot refinement and the geometric continuous conditions of bezier surfaces to deduce the geometric continuous constraints of nurbs patches and obtain the intrinsic equations of common boundary curves, where the intrinsic equations are the special phenomena of nurbs surfaces
節點向量是內部單節點的nurbs曲面是最簡單也是最常用的,本文重點針對單節點的雙四次、雙五次和雙k次b樣條曲面及雙三次nurbs曲面,運用節點插入技術和b zier曲面的幾何連續理論成果,導出了它們之間的幾何光滑拼接條件,同時得到了公共邊界曲線所必須滿足的本徵方程,其中本徵方程是nurbs曲面所獨有的現象。Aiming at the lack of traditional ploting method in the areas of three dimension graphics, the b - spline surface is adopted. in order to more easily build the b - spline surface the control points are replaced with one center point during the storage, and make it clear to simulate the curve of branches
在三維圖形的繪制方面,針對傳統繪制方法的不足,採用b樣條曲面來構造三維幾何模型,在曲面的生成及存儲過程中用一個中心點代替多個控制頂點,將對曲面的控制轉為對曲線的控制,使得對枝條形狀的模擬更加方便直觀,並且減少了存儲空間。Surface fairing is an inevitable operation on reconstructed b - spline surface in reverse engineering cad modeling. because of some random factors in data acquisition process or limitation on modeling methods, the quality of the constructed b - spline surfaces may not always satisfy the users " requirements
由於各種各種測量因素和造型手段的局限性,基於測量數據重構出來的b樣條曲面模型的表面品質有時並不能滿足用戶的要求,因此經常需要通過光順來改善重構曲面的品質。At the same time, we need to transform triangular mesh model to parameterized smooth b - spline surfaces in order to redesign the part or other consequent application
同時,為了便於零件的改型設計及其他的后續應用,需將三角網格模型轉化為參數化的光滑b樣條曲面模型。分享友人