Sail Calculator Pro v3.53 - 2500+ boats. YACHT SYMPOSIA. The journal of Apple technology. Philip J. Schneider QuickDraw 3D supports a mathematical model for arbitrary curves and surfaces known as NURB (nonuniform rational B-splines). NURB curves are flexible and powerful, but using them effectively requires some understanding of the underlying mathematical theory. This article presents an intuitive introduction to the mathematical concepts of the NURB model and how to use them in your QuickDraw 3D programs.
One of the more powerful features of QuickDraw 3D is its ability to work with curves and surfaces of arbitrary shape. The mathematical model it uses to represent them is known as NURB, for nonuniform rational B-splines. The NURB model is flexible and powerful, but for those unfamiliar with the mathematics, it can appear dauntingly complex. The mathematics really aren't so frightening, though, once you understand them. Like any graphics package, QuickDraw 3D offers low-level geometric primitives for objects such as lines, points, and triangles. Figure 1. Y = f(x) y = sin x. www.friendship-consulting.com/downloads/2002_HPYDC_AdvancedParametricYD.pdf.
kevincudby.com/kspline/Cudby_2010a_new_approach_to_VPP.pdf. kevincudby.com/kspline/Cudby_2008a_kspline.pdf. ORC RULES. FRIENDSHIP — Papers.