4. Geometry
Although UIKit requires less applied math than, say, Core Animation or Open GL, geometry plays an important role when working with Bezier paths and view transforms. Why do you need geometry? It helps you manipulate views in nonstandard ways, including laying out text along custom paths and performing path-follow types of animation. If your eyes glaze over at the mention of Bezier curves, convex hulls, and splines, this chapter helps demystify these terms, enabling you to add some powerful customization options to your toolbox.
Recipe: Retrieving Points from Bezier Paths
In mathematics, Bezier curves refer to a parameterized smoothed curve, created by control points applied to a line segment. In UIKit, Bezier paths define shapes built ...
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