为了建立基于工程图学的虚拟实验室,在计算机的屏幕上虚拟现实中零件的装配,笔者通过对两种虚拟语言VRML与Java 3D的分析比较,选定以Java 3D为虚拟平台,在引入.obj文件的基础上,按照现实中零件的安装和工作过程,通过设定相应的程序来实现零件的交互和装配过程,并完成了对零件交互式三维装配动画以及工作原理的论述.以压板为例,给出了一个基于Java 3D的交互式三维装配动画的例子,实现了该装配体在虚拟现实中的要求,达到了虚拟装配的目的.从而验证了该方法在现实零件装配中的预见性和优越性.%The purpose of this research is to establish virtual laboratory which is based on engineering graphics and to realize virtual assembly of parts in the computer screen. Java 3D was chosen for virtual platform compared with VRML language. In accordance with the reality of the parts of the installation and work processes based on introducing . Obj file,realized the interaction and assembly of parts by setting button program and completed the description of interactive 3D assembly animation. Finally by taking plank for example, gave an interactive 3D assembly animation, realized virtual assembly and met the requirements in virtual reality. Proved the predictability and superiority of this method in the real component assembly.
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