Cocoa 2D animation in 30 seconds

[bioffe]

In Quartz 2D, an affine transformation matrix is used to rotate, scale, translate, or skew the objects you draw in a graphics context. The CGAffineTransform type provides functions for creating, concatenating, and applying affine transformations.

In Quartz, affine transforms are represented by a 3 by 3 matrix:

Comments

Ктулху Фхтагн

[anonymous]

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