A comparative evaluation of human interaction for design and assembly of 3D CAD models in desktop and immersive environments
A comparative evaluation of human interaction for design and assembly of 3D CAD models in desktop and immersive environments
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在桌面和沉浸式环境中设计和组装 3D CAD 模型的人机交互的比较评估
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
C. Antonya
中科院分区：
文献类型：
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作者：
Madalina;F. Gîrbacia;C. Antonya
计算机辅助设计（CAD）系统已成为当今工业中用于设计和开发产品的基本工具。在当前的CAD软件中，大多数编辑命令是借助小部件和字母数字数据输入设备发出的，而研究界正在提出使用虚拟现实环境进行CAD建模。本文进行了一项实验研究，比较了多模态沉浸式VR -CAD系统与传统CAD系统的性能和可用性。对三维模型的建模和装配过程进行了对比分析。调查结果表明，尽管虚拟环境中的各种界面设备为用户提供自然交互，但与传统桌面界面相比，建模时间大致相同。然而，对于多式联运系统，装配时间要短得多。此外，多模态界面具有更高的物理应力因子，在建模过程和装配过程中，手的移动距离平均分别是桌面界面的1.6-2.3倍。实验后的问卷调查表明，多模态系统在建模和装配过程中给用户带来了很大的满意度。
Computer aided design (CAD) systems have become today the basic tools used to design and develop products in the industry. In current CAD software most of the editing commands are issued with the aid of widgets and alphanumeric data input devices, while research community is proposing the use of virtual reality environments for CAD modelling. This paper presents an experimental study which compares the performance and usability of a multimodal immersive VR (virtual reality)-CAD system with a traditional CAD system. A comparative analysis was done for the modelling and the assembling process of 3D models. The results obtained from this investigation have shown that, in spite of the variety of interface devices in the virtual environment which provide a natural interaction to the user, the modelling time is about the same compared with a traditional desktop interface. The assembling time, however, is shown to be much smaller for multimodal system. Furthermore, the multimodal interface poses a higher physical stress factor, the hand movement distance being on average 1.6–2.3 times greater than the desktop interface for modelling process and assembling process, respectively. A post-experiment questionnaire shows that the multimodal system produce a great satisfaction for users in modelling and assembly processes.