Digital City In A Number Of Spatial Analysis Techniques And Visualization And Research

Spatial Analysis technology and its Visualization is an important research problem in computer graphic,RS(Remote Control),VR(Virtual Reality) and GIS and so on. Several spatial analysis algorithms and their Visualization are discussed in detail in this paper.At first, Modeling must be solved: an Object-Oriented modeling method is present. This modeling method simplify the data structure of 3D building model, it help 3D Visualization. At the same time, constructing of building model is realized by use of semantic relationship of Object-Oriented, which help for spatial analysis and query on building or building group. Next, in spatial analysis technology, the article emphasis on the research on shortcut analysis algorithm: according to the feature of net model in little place, the article presents the shortest route analysis in little place, designs Data structure of Network. A rapid search based on boundary is presented for promoting efficiency. At last, several important problems in 3D visualization are described: scene management, 3D speed technology. At last, based on foregoing, 2D and 3D visualization of the shortest route is realized.