CAD 即计算机辅助设计,与手工制图相比,它有其无可比拟的优越性,在水工设计中可以大显身手。运用 CAD 不但可以借助各类设定工具绘制图、矩形、直线、曲线等基本实体,进行文本标注,而且还可以运用移动、复制、删除等编辑命令对图形进行整体操作,尤其可以将基本底图进行缩放和修改,得到不同 CAD that computer-aided design, compared with the hand-made graphics, it has its unparalleled superiority in hydraulic design can show their talents. The use of CAD not only can draw diagrams, rectangles, lines, curves and other basic entities with all kinds of setting tools for text annotation, but also can use the edit, move, copy, delete and other commands on the graphics overall operation, in particular, the basic base map Zoom and modify, get different