The wireframe modeling in for the geometric representation of a part in a cad system

Abstract

In the article describes several options for the geometric representation of a part in a CAD system. The choice of one or another option depends on the capabilities of the system and on the need for its application to create a control program. Not so long ago, the kulman was the main tool of the design engineer. With the advent of the first personal computers, a real revolution began in the field of design automation. Design engineers immediately appreciated the benefits of "flat scriber." Even the simplest CAD system for two-dimensional design allows you to quickly create various geometric elements, copy fragments, automatically apply hatching and affix dimensions. The main tools in flat design are lines, arcs, and curves. Using the operations of extension, cropping and joining of geometric elements, the creation of an “electronic drawing” takes place. For full-fledged work with flat graphics in the CAM system, additional information on the depth of geometry is needed. The wireframe model represents the geometry of the part in three-dimensional space, describing the position of its contours and faces.