桌面虚拟学习环境下的三维交互技术研究

Research on the Interaction Technique of Three-dimension Under the Desktop Virtual Learning Environment

三维交互技术是虚拟教学系统研究的关键,良好的交互能够成功促进学习者的体验。文章从教学应用的视角出发,通过对教学交互和三维交互的系统分析,提出了"几何漫游"、"选择操纵"、"协作互动"三个逻辑层次的交互任务,并在此基础上分析了三维交互技术的构成体系,结合实例描述了三维交互技术的开发流程,重点解决了在三维交互技术制作过程中存在的难点问题,旨在促进学习者在虚拟环境下学习效果的提升。

The interaction technique of 3D（Three-dimension） is the essence of the virtual reality system research and good interaction can promote learners＇ experience swiftly.The article put forwards ＂geometry navigation＂,＂selection manipulation＂,＂collaborative interaction＂ as three logical levels via the systematic analysis of three-dimensional interaction tasks,based on the practical application of teaching.And on this basis,it constructs the system of interactive 3D graphics construction under the virtual circumstance and presents the developing procedure of the interaction technique of 3D,which primarily can solve the problems with the interaction technique of 3D,aimed to promote the result of the learning under the virtual circumstance.