A generalized Ball curve and its recursive algorithm
ACM Transactions on Graphics (TOG) - Special issue on computer-aided design
Shape preserving properties of the generalised Ball basis
Computer Aided Geometric Design
Efficient algorithms for Bézier curves
Computer Aided Geometric Design
A shape preserving representation with an evaluation algorithm of linear complexity
Computer Aided Geometric Design
Construction of triangular DP surface and its application
Journal of Computational and Applied Mathematics
Error analysis of efficient evaluation algorithms for tensor product surfaces
Journal of Computational and Applied Mathematics
Gauss-Lobatto to Bernstein polynomials transformation
Journal of Computational and Applied Mathematics
Computers & Mathematics with Applications
Hi-index | 0.09 |
In this paper, a new generalized Ball basis, normalized totally positive (NTP) basis given by Delgado and Pena, is investigated. The conversion formulae between the basis and the Bernstein basis are derived. We also prove that these formulae not only are valuable for studying the geometric properties, such as subdivision, of the curves and surfaces constructed by this generalized Ball basis, but also can improve the computational speed of the Bezier curves and surfaces. After the Bezier surface (curve) is converted into the generalized Ball surface (curve), the time complexity for evaluation can be reduced from cubic to quadratic, of the degree of the surface (curve). However, the intrinsic property, such as shape-preserving property, is not changed. So, the generalized Ball surface and curve have a great future in application of geometric design.