Conversion methods are required for the exchange of data. First a given rational B-spline surface with curved boundaries will be segmented by curvature oriented arguments, then these patches will be converted into bicubic or biquintic integral B4zier patches with help of geometric continuity conditi
Curve and surface representation for Bezier B-spline systems
β Scribed by PJ Hartley; CJ Judd
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 116 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0010-4485
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β¦ Synopsis
This paper briefly outlines the design' and application of two potential display processor components in future computeraided design systems. Most of the applications derive from the high-speed graphics facilities with automatic hidden-line" removal -however some depend on an overlap testing procedure which can be used both in interactive design systems and in computer controlled manufacturing systems.
π SIMILAR VOLUMES
Cu rvatu re-co nti n uous extensions for rational B-spline curves and surfaces
A useful and simple algorithm is presented for interactively generating B-spline interpolation curves and surfaces from B-spline approximation solutions. The difference between the data points and the B-spline approximation is used to modify the control vertices in order to generate a succession of
Sections of parametric surfaces defined by equally spaced parameter values can be very unevenly spaced physically. This can cause practical problems when the surface is to be drawn or machined automatically. This paper describes a method for imposing a good parametrization on a curve constructed by
Generati ng the Bezier poi nts of B-spline curves and surfaces ## Wolfgang B6hm The well-known algorithm by de Boor for calculating a point of a B-spline curve can also be used to produce the B&ier points of a B-spline curve or surface.