'Parametric continuity' diaporamas de présentation

Chapter 8. Three-Dimensional Object Representations

Chapter 8. Three-Dimensional Object Representations. Solid objects representation scheme. Boundary representation (B-reps) three-dimensional objects ? , ??? ??? ??? ???? surface ? ???? ???? ? ???? ?? polygon facets ? spline patches ? ?? Space-Partitioning representation

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Curves and Surfaces

Curves and Surfaces. Chapter 10. Introduction: Until now we have worked with flat entities such as lines and flat polygons Fit well with graphics hardware Mathematically simple But the world is not composed of flat entities Need curves and curved surfaces

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Modeling Curved Surfaces

Modeling Curved Surfaces. Curved Surfaces. The use of curved surfaces allows for a higher level of modeling, especially for the construction of highly realistic models. There are several approaches to modeling curved surfaces:. (1) Similar to polyhedral models ,

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ICS 415 Computer Graphics Hermite Splines

ICS 415 Computer Graphics Hermite Splines. Dr. Muhammed Al-Mulhem March 1, 2009. Spline. A spline is a a flexible strip used to produce a smooth curve through a set of points. Representations of Curves. A curve can be represented using: A sequence of points.

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Geometric Modeling 91.580.201

Geometric Modeling 91.580.201. Notes on Curve and Surface Continuity Parts of Mortenson, Farin, Angel, Hill and others. From Previous Lectures. Continuity at Join Points (from Lecture 2). Discontinuous: physical separation Parametric Continuity Positional ( C 0 ): no physical separation

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Representation of Curves and Surfaces

Representation of Curves and Surfaces. Graphics Systems / Computer Graphics and Interfaces. Representation of Curves and Surfaces. Representation of surfaces : Allow describing objects through their cheeks. The three most common representations are: Polygonal mesh

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CS 445 / 645 Introduction to Computer Graphics

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Hermite Curves

Hermite Curves. A mathematical representation as a link between the algebraic & geometric form Defined by specifying the end points and tangent vectors at the end points Use of control points Geometric points that control the shape

1.43k views • 7 slides