Design And Lmplementation Of Three-Dimension Virtual Park Of Digital City System

By combining computer technology with some new and high technologies such as real-time technology, interaction technology and immersion technology, the virtual environment constructed can be more vivid and natural. In virtual environment,relevant hardware can be used to assist interactive view. Thus, people can feel like in the scene. Moreover, by making virtual simulation of similar environment, it can be directly integrated into the virtual environment. In this way, this experience can be more vivid.In recent years, virtual reality technology used in the scope of computer has attracted more and more people's attention. In the application scope, three-dimension virtual park system construction is an important field. For management and planning of the park, a new concept was proposed in consideration of development and protection. That is application and development of “virtual park” in digital city scenic spot. Moreover, an expansion was made based on the above to apply virtual reality technology in traditional city parks. There's no doubt that development of virtual reality technology can drive benign development of city parks in future. This study is composed of the following aspects.(1)Research objectives and significance of Three-dimension virtual park in digital city was explained. The author elaborated specific directions and development trend of studies on virtual park in China and abroad, and then introduced virtual reality technology for design and implementation of virtual park in summarization way.(2) Demand analysis and planning and design are important steps for construction of virtual park.(3) The author classified according to types of building and selected the modeling scheme and method. There're many modeling methods, such as external landscape modeling and building modeling.(4) An interactive coordination study on Three-dimension virtual park was made.The author made collision detection setting, programmed for different types and created connections for data relevant to intelligent parks on the system platform. Then,the author presented the specific implementation scheme and reserved the interface for secondary development.Now, many digital cities have regarded virtual park as a major direction of study and exploration. It is not only because virtual park provides basic geographic information data for the digital city, but also because it simulates the real parkenvironment, which makes it more convenient to make planning management of the park in future. Therefore, virtual park can enable users to make all-round view in dynamic interaction mode.