Three-dimensional Interactive Technology Research And Application

First, popular 3D interactive equipments and its usage have been analyzed. The basis of computer graphics principle is studied, it includes 3D geometry transform, coordinate transform and 3D observation. On this basis, object manipulation and navigation are analyzed. Design philosophy is brought out in actual application for them. Simultaneously pick algorithm is given based on two-dimensional desk input device for virtual entity. Collision detecting is discussed, and collision detecting algorithm of axial direction surrounding box of AABB is given outIn this text, the project of gas hot water boiler's virtual training system is made a prototype. The part of prototype system analysis and design has analysed the exploitation environment, database of the system, navigation and manipulation. And have designed interactive system 3D engine.The part of prototype system realizition has descripted the model and its leading to system. Database is leaded. Navigation of road, camera controlling on environment of desk, navigation based on target are used. The navigation of procedure controlling under OpenGVS is developed.The interactive mode of virtual hand, acoustic effect, animated implantation, graphics menu are realized. A way has found for Resolving the problem of having produced the blue edge, during mall circumstances with transparent vein merging to big circumstances pursuing; he mission handles many to a circumstances, interactive mode oftwo-dimensional artwork menu is adopt to handle many task of a scene.The interactive framework in core of 3D Widgets is designed, and realized in the system. The precision of entity handles is improved and can realize the choice that many handle to the same object in interactive environment on using the framework of 3D Widgets.