FLORA 发表于 2025-3-26 22:01:48

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incredulity 发表于 2025-3-27 02:20:48

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cardiovascular 发表于 2025-3-27 08:50:06

Technik der Maschinen-Buchhaltung information specified by the control vertices. These shape parameters have the property that β1 = 1 indicates continuity of the parametric first derivative vector and β1 = 1 with β2 = 0 indicates continuity of the parametric first and second derivative vectors.

Rotator-Cuff 发表于 2025-3-27 12:42:45

Bach to Rock, A Musical OdysseyThe underlying concept of this work is the synthesis of two useful concepts: the application of . to a shape; and the study of the . and . of a parametrically defined shape as fundamental geometric measures.

Hyperplasia 发表于 2025-3-27 16:40:27

https://doi.org/10.1007/978-94-009-9900-8The parametric representation of a curve has each component expressed as a separate univariate (single parameter) function while that of a surface has each component defined by a separate bivariate (two parameter) function.

Figate 发表于 2025-3-27 19:45:32

Heidegger’s Philosophy of TechnologyConsider a space curve (in three dimensions) parametrized with respect to an arbitrary parameter . . The unit tangent vector has the same direction and sense as the parametric first derivative vector, but it is normalized.

stressors 发表于 2025-3-28 00:09:44

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恶意 发表于 2025-3-28 03:16:38

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印第安人 发表于 2025-3-28 08:00:20

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angina-pectoris 发表于 2025-3-28 13:02:24

https://doi.org/10.1007/978-3-663-04316-4An important observation is that β1.(.) and β2.(.) (equation (14.3)) can each be written as a pair of equations of similar form; specifically,.where . and . were defined in equation (14.3).
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查看完整版本: Titlebook: Computer Graphics and Geometric Modeling Using Beta-splines; Brian A. Barsky Book 1988 Springer-Verlag Berlin Heidelberg 1988 computer gra