CAD三维制图

三维绘图术语和坐标系

◆视图观测点的设立方法

◆绘制三维点和曲线

◆绘制三维网格

◆绘制三维实体

◆通过二维对象创建三维对象

-◆ view observation points set up method of CAD 3D drawing 3D graphics terminology and coordinate system ◆ draw the 3D points and curves In ◆ draw three-dimensional grid ◆ draw three-dimensional entities ◆ through the two-dimensional objects to create three-dimensional object