An Effective Visualization Model for Virtual Maintenance System

Visualization modeling has been recognized as a vital technology of virtual maintenance system. The object modeling and scene graph was used to present and construct virtual maintenance environment. Using object oriented principles and vivid virtual maintenance environment modeling technique; it analyzed and modeled the objects in virtual environment with emphasis on body, group and constraint. Definitions and characters of body, group and constraint were discussed in detail. Then based on graph theory, it presented a scene graph .The scene graph consists of the organization graph, space topology graph and object constraint net graph of the virtual maintenance system. The relationship and structure of them was discussed. It is concluded the method could describe and organize large-scale dynamic virtual environment effectively