AutoCAD环境下画法几何图解与三维绘图新方法的研讨

摘要

We make drawings and graphical soultions in course descriptive geometry and engineering drawing by using the drawing software AutoCAD R14. If we adopt traditional ways of descriptive geometry, it is not convenient to display its graphic steps on computer screen, projections and three-dimensional pictorial drawing cannot be drawn and displayed simultaneously, the actual shape of the geometric elements and the relation between these elements and three projections planes cannot be displayed clearly. Therefore a new way is exploited to solve the above problems. It can draw the third projection or view and axonometric projection, while two known projections or views are being interpreted. Moreover, many graphic solution problems on engineering drawing will been solved.%应用AutoCAD R14计算机绘图软件进行画法几何与工程制图图形的绘制与图解。如采用传统的画法几何的一些图解方法，则不便于在计算机显示屏幕上实现其图解步骤，并且存在投影图与三维立体图不能同步绘制和显示的问题，以及不能清楚显示空间几何元素的空间形状及其与三投影面投影关系的问题。为此，研究开发了一种新方法，它可以在读取已知二投影图（或视图）的同时补画出第三投影图（或视图），并同步绘制出轴测图，且可以解决工程图解的一系列画法图解的问题。