The gray-scale slot is designed to write the grooves with multiple-levels along the vertical direction of grayscale-slot by a vector file that is obtained from the interface with DXF.

• 采用灰度狭缝进行矢量化的直写,使平台沿着垂直狭缝的方向运动,获得了具有台阶结构的光栅槽型,编写了与DXF文件一致的接口直写控制程序。