三维建模软件和AutoCAD交互作用在画法几何教学中的应用探索

Application Exploration of Interaction between 3D Modeling Software and AutoCAD in Descriptive Ge⁃ometry Teaching

针对画法几何课程截交线、相贯线、组合体的三视图表达等内容教学过程中,学生对相关几何元素的空间特征和平面投影理解困难,且传统的讲解方法手工作图烦琐、知识输出量少等情况。为了提高画法几何课程的实践性及应用性,基于信息化教学手段,提出一种三维建模软件和AutoCAD交互作用的运用方法。首先基于三维建模软件对三维模型进行建模,通过立体展示增加学生对相关几何元素的空间想象和理解,同时通过AutoCAD作图演示代替传统的手工作图,提高了作图演示的效率。最后结合课堂实际教学环节,针对三维建模和AutoCAD交互作用在画法几何教学中的应用提出相关注意事项。

In the teaching process of sectional line,intersecting line and three-view expression of composite in the Descriptive Geometry course,students have difficulty in understanding the spatial characteristics and plane projection of relevant geometric elements,and the traditional explanation method of manual drawing is cumber⁃some and the output of knowledge is small.In order to improve the practicability and applicability of the Descrip⁃tive Geometry course,based on the information-based teaching method,an application method of the interaction between 3D modeling software and AutoCAD is proposed.Firstly,the 3D model is modeled based on 3D modeling software,and the spatial imagination and understanding of relevant geometric elements are increased by threedimensional display.Meanwhile,the traditional manual drawing is replaced by AutoCAD drawing demonstration,which improves the efficiency of drawing demonstration.Finally,combined with the actual teaching process in the classroom,the application of three-dimensional modeling and AutoCAD interaction in the teaching of Descriptive Geometry is proposed.