Introduction - If you have any usage issues, please Google them yourself
We all know Vector amplification without distortion, and will magnify bitmaps distortion, the bottom of the computer and their calculation methods. To enlarge a rectangle or rounded rectangle, we can use vector graphics to draw the rectangle, this is no problem, but if you want to move this rectangle or deformation while bound to the CPU to bring greater pressure, because every change vector CPU must be recalculated, if your CPU-intensive work itself higher, then this way is unsatisfactory, in order to optimally enlarge the bitmap, Flash was introduced in nine grids method, also known as 9-slice, this section detailed talk about nine grids.