摘要
在工程制图课程中根据二维图纸来构思三维形状,对于初学者来说有相当大的难度。针对传统基于PC端工程制图的多媒体辅助教学方式在交互性和易用性上的不足,研究基于移动增强现实的工程制图助学系统。采用无标记识别技术实现工程图样与三维数字化模型的自然交互,并在此基础上开发了一个功能齐全的助学APP,使用者可以通过手机摄像头扫描识别二维工程图,在屏幕上叠加显示三维模型以及其他相关教学资源,用户可实时完成模型缩放、旋转等操作,并且可对复杂的工程装配体模型进行拆卸和组装。实验结果表明,该系统不仅便于学生自主学习,而且在一定程度上改善了工程制图课程的教学环境。
In the course of engineering drawing,it is a great challenge for beginners to conceive three-dimensional shapes on two-dimensional drawings.This paper analyzes the shortages of traditional PC-based multimedia-assisted teaching methods in interactivity and convenience,and proposes an engineering drawing system based on mobile augmented reality.This system adopts the unmarked recognition technology to realize the natural interaction between engineering drawings and three-dimensional digital models,on the basis of which,an assistent learning application with multifunction has been developed.Users can use the cellphone camera to scan and identify the two-dimensional engineering drawings and overlapping display of three-dimensional models,and other teaching resources are also supported on the phone.Users can also zoom in or rotate the models,and disassemble and assemble those complicated assembly models.The result shows that the system is not only convenient for students’autonomous learning,but also helpful in improving the teaching environment of engineering drawing courses.
作者
侯守明
连盼盼
徐文鹏
陈柯瑶
HOU Shouming;LIAN Panpan;XU Wenpeng;CHEN Keyao(School of Computer Science and Technology,Henan Polytechnic University,Jiaozuo Henan 454100,China;Hebi Automotive Engineering Professional College,Hebi Henan 458030,China)
出处
《图学学报》
CSCD
北大核心
2018年第3期587-593,共7页
Journal of Graphics
基金
河南省科技攻关计划项目(162102310090
172102210273)
河南省教育教学改革项目(2014SJGLX478)
关键词
增强现实
工程制图
无标记识别
助学系统
augmented reality
engineering drawing
unmarked recognition
assistant learning system
