This paper is based on the theoretical research of visual reality geographical information system,including the acquisition of three-dimensional space model,three-dimensional data model,Digital Terrain Model,Digital E...This paper is based on the theoretical research of visual reality geographical information system,including the acquisition of three-dimensional space model,three-dimensional data model,Digital Terrain Model,Digital Elevation Model and the expression of levels of detail of 3D space date and three-dimensional data visual expression etc.Based the ArcEngine as tool,this paper created virtual reality topographical scene of Zijin mountain region,realized the interactive operation,just like Zooming in,Zooming out,Rotating,Roaming and Simulating,and SAconstructed a case of VRGIS on Zijin mountain region.展开更多
文摘This paper is based on the theoretical research of visual reality geographical information system,including the acquisition of three-dimensional space model,three-dimensional data model,Digital Terrain Model,Digital Elevation Model and the expression of levels of detail of 3D space date and three-dimensional data visual expression etc.Based the ArcEngine as tool,this paper created virtual reality topographical scene of Zijin mountain region,realized the interactive operation,just like Zooming in,Zooming out,Rotating,Roaming and Simulating,and SAconstructed a case of VRGIS on Zijin mountain region.
