Layers

作者: winnisz | 来源:发表于2017-03-07 17:18 被阅读0次

1、Layers Provide the Basis for Drawing and Animations

The Layer-Based Drawing Model

Layer-Based Animations

2、Layer Objects Define Their Own Geometry

Layers Use Two Types of Coordinate Systems

chor Points Affect Geometric Manipulations

Layers Can Be Manipulated in Three Dimensions

3、Layer Trees Reflect Different Aspects of the Animation State

4、The Relationship Between Layers and Views

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