基于Android平台的工程图学助教助学系统研究与实现

摘要

针对空间想象能力培养的教学需要，对基于Android平台的工程图学助教助学系统进行了研究。根据教与学的需要，确定了系统功能，设计了软件的框架结构。分析研究了移动设备的系统平台，选择了系统的开发及运行平台。通过分析Android框架中OpenGL ES的设计接口，实现了模型的轴测显示模式。通过分析OpenGL ES中glDrawElements方法的数据需求和VRML97的数据格式，设计了虚拟模型加载器，实现了Android系统中的VRML模型3D浏览器。开发了软件的核心功能模块，设计实现了基于Android平台的工程图学助教助学系统。该系统因其创新性和实用性，在2014年第十四届全国多媒体课件大赛中荣获一等奖。%The design for APP of engineering graphics is discussed, for the teaching needs to develop of spatial imagination ability of undergraduate. Base on the needs of teaching and study, the functions are made sure that aided teaching and assisted learning of system, and the basic function of software is designed. The frame structure of software is designed. The comparison of the mobile device system platform, choose development and operation platform of the system. Through the analysis of interface of Android framework, the orthographic view is designed. Through the analysis of and data needs of the glDrawElements, and VRML97 data format, the VRML loader is designed. The 3D browser of VRML model is designed on the Android system. And the core function of software is developed. The APP of engineering graphics is realized based on Android platform. The software has characteristic of innovation and practicability, and get the first prize in the 14th national multimedia courseware contest.