3D Technology Research And Application Of GIS-Based Digital Campus

With the rapid development of GIS and 3D technology, a number of outstanding corresponding software have appeared in our vision. In this context, the construction of digital campus in 3D visualization and spatial analysis capabilities of the demand is increasingly strong,thus it has important significance to study and apply 3D technology in promoting the construction of digital campus.The research object of the paper is Maritime University,and it achieves campus three-dimensional visualization using 3D modeling techniques from buildings,roads and trees,and utilizes secondary development function of SuperMap software platform to study and apply.Meanwhile,using B/S three-tier distributed architecture and the design principles of practicality and scalability,it designs a three-dimensional GIS system,and does the prototype implementation.The work as follows:For the actual demand,it first analyzes modeling software selection in 3D modeling techniques,and uses a different modeling methods and technology roadmap.Through a combination of GIS platform, it creates a complete three-dimensional scene.The paper realizes client development, one of which is custom scene roaming technology.By secondary development,it achieves in controlling model objects and walking a set route, and uses the perspective of dynamic tracking roaming the scene.It achieves two-three dimensional integration.And it focuses on the SQL query.By the coexistence of maps and scene in a page,and compound SQL query conditions specified layer in maps,it objects query results to highlight the form reflected in the maps and scene.It focuses on studying scene roaming and two-three dimensional integration technology.Through Javascript and Realspace GIS,it implements three-dimensional visualization and spatial analysis capabilities.The application of 3D technology shows the feasibility, which will further promote the construction of digital campus.