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“旋转”变换是图形的基本变换之一,它可以改变图形位置.但不会改变图形中线段的长度和角的大小.所以我们可以应用这一性质对某些需要变换图形进行适当的变换,从而找到解决问题的途径.那么如何应用“旋转”解题呢?现结合以下几个例题加以说明.
The “rotation” transformation is one of the basic transformations of the graph. It can change the position of the graph. However, it does not change the length of the line segments in the graph and the size of the corners. So we can apply this property to some appropriate transformation of the graphics. Transform to find the way to solve the problem. Then how to apply “rotation ” to solve the problem? Now combine the following examples to illustrate.