Haptic Interface Technique in Large-Scale Virtual Environment

Abstract

ABSTRACTThe CAD modeling system based on virtual reality (VR) techniques enables the user to create, modify and manipulate 3D CAD models intuitively, and at the same time allows the user to visualize CAD models immersively. This paper presents the research work on the development of haptic interface in the large-scale virtual environment and the integration of such a haptic interface in the VR based CAD modeling system. The haptic device has limited physical workspace compared to the large stereoscopic screen of the virtual environment. There is a mismatch between the workspace of the haptic device and the large-scale virtual environment. The haptic rendering algorithm presented in this paper consists of three parts: haptic workspace moving algorithm, collision detection, and collision response.