The order of a composite transformation is important 复合变换的顺序非常重要。
Class provides several methods for building a composite transformation 类提供了几种构建复合变换的方法:
A composite transformation is a sequence of transformations , one followed by the other 复合变换复合变换是一个接一个的变换序列。
The following example creates the matrix of a composite transformation that first rotates 30 degrees , then scales by a factor of 2 in the y direction , and then translates 5 units in the x direction 下面的示例创建了复合变换(先旋转30度,再在y方向上缩放2倍,然后在x方向平移5个单位)的矩阵。
The fact that the matrix of a composite transformation can be formed by multiplying the individual transformation matrices means that any sequence of affine transformations can be stored in a single matrix 复合变换的矩阵可通过将几个单独的变换矩阵相乘而得到,这就意味着任何仿射变换的序列均可存储于单个的
Rather than store the three parts of the composite transformation in three separate matrices , you can multiply a , b , and c together to get a single 33 matrix that stores the entire composite transformation 可以不将复合变换的三部分存储于三个独立的矩阵,而是一起乘以a 、 b和c来得到存储整个复合变换的单个的33矩阵。