The Flex provides a lots of functions about Matrix Transformation functions. Using these matrix functions, we can implements 2D transformation in a very easy way. For 2D transformation, the most common transformation is Translate, Scale, Rotate, and Skew. By default, all these transformations are according to the Top-Left point, (0, 0) point. For example, when we set a rotation as 45 in a canvas, the canvas will rotate 90 degrees around (0,0), as figure 1 shown. The Scale and Skew also use the same rule to transformation. But lots of times, we want to rotate a canvas, movieclip, or an image, around a certain point, for example, rotate it around center point, as figure 2 shown. In this post, I will show you how to make a rotation around a point.
