运动通过平移,旋转,以及每一个移动对象的局部坐标系统的非一致缩放来实现。
Motion is specified by translations, rotations, and nonuniform scalings of the local coordinate system of each moving object.
这篇文章主要研究局部坐标系统转换。这个问题涉及的数学知识非常简单,但是很复杂。
This part delves into the local coordinate system transformation. The mathematics of this problem are simple, but elaborate.
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