Curve and Surface Constructions
Dianne Hansford and Gerald Farin
This chapter introduces algorithms for the generation of curves and surfaces. The emphasis is on interpolation and approximation using Bézier and B-spline techniques.
7.1 INTRODUCTION
The goal of this chapter is to outline some of the most fundamental interpolation and approximation methods in CAGD. Wherever possible, the developments focus on Bézier and B-spline techniques because of their intuitive geometric definitions. First of all, the focus is on polynomial curve methods, including Lagrange (point) interpolation, point approximation, and Hermite (point and tangent) interpolation. Next, a piecewise polynomial scheme, C2 cubic spline interpolation is presented. ...
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