In computer graphics, a predetermined pattern of lines, that provides uniform coverage of a display space. 在计算机图形学中,提供显示空间均匀覆盖面的预定扫描线图案。
In computer graphics,the display at some point on the display space of the display elements whose coordinates lie outside of the display space. 在计算机图形学中,将坐标超出显示空间的显示元素显示在显示空间的某个位置上。