摘要
Abstract
The introduction of the theory about three-dimensional visualization technology, changes the traditional static and plane map to the dynamic and three-dimensional map. Map of three-dimensional visualization becoming a new field of research in GIS and digital mapping. This paper studies the expression of multi-scale scenarios, taking into account the terrain （which is based on DEM） of the buildings, vegetation, roads, water and other major elements of the three-dimensional model and its display, visibility analysis. Finally, three-dimensional visualization technology in the field of urban planning based on planning exhibition, design comparison, sunlight analysis, historical change and the application are discussed.关键词
三维地理信息系统/LOD可视性分析/日照分析/成果展示/三维模拟Key words
three-dimensional geographic information systems/LOD/visibility analysis/sunshine analysis/the result display/three-dimensional simulation分类
天文与地球科学
