Recognizing the construction methods of (piecewise) polyno-tems support, Sat data files in the case of Acis, and the mial or rational curves and surfaces is of great importance, e.g., Archive data format in Ideas. In contrast to these two for geometrical data exchange between two different modeling
Visualization and computation of curvature behaviour of freeform curves and surfaces
โ Scribed by Hans Hagen; Stefanie Hahmann; Thomas Schreiber
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 879 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0010-4485
No coin nor oath required. For personal study only.
โฆ Synopsis
The paper consists of two parts. In the first, an interrogation method for a visualization of curvature behaviour is introduced. The method consists of a generalized focal analysis. The second part concerns the accurate computation of surface behaviour. Arithmetic operations on BBzier surfaces are used to achieve au exact representation of surface properties. With these property surfaces in Bezier form, qualitative and quantitative statements relating to the investigated surface are possible.
๐ SIMILAR VOLUMES
An efficient way of drawing parametric curves and surfaces is to approximate the curve or surface by a sequence of straight-line segments or a mesh of polygons, respectively. In such an approximation, many small line segments or polygons are needed in regions of high curvature, and fewer and larger
State-sum invariants for knotted curves and surfaces using quandle cohomology were introduced by Laurel Langford and the authors (Quandle cohomology and state-sum invariants of knotted curves and surfaces, preprint). In this paper we present methods to compute the invariants and sample computations.
## Abstract New computer programs, SurfRace and FastSurf, perform fast calculations of the solvent accessible and molecular (solvent excluded) surface areas of macromolecules. Program SurfRace also calculates the areas of cavities inaccessible from the outside. We introduce the definition of averag
We develop wavelet methods for the multiresolution representation of parametric curves and surfaces. To support the pression method, selected scaling coefficients of the surface representation, we construct a new family of compactly supyield a compact hierarchical surface representation using ported