摘要
现实世界的复杂性决定了其在计算机中表达的复杂性,三维模型的构建成为3DGIS中亟待解决的一个核心问题。探讨了三维建模思想以及建模方法,并以ArcGIS和SketchUp交互建模方法为例,论述了三维建模流程以及注意事项,通过模型库的构建,提高了该方法在小区域内景观的三维快速构建效率,所得的模型为3DGIS提供了数据源。实践表明,在有限的经济、技术等条件下,该方法具有较强的可行性和实用性。
The complexity of the real world determines its complex expression with computers.The construction and visualization of 3D Model is a core problem which requires to be solved immediately in 3DGIS.This paper discussed the idea of the 3D modeling and the modeling methods,and in the case of ArcGIS and SketchUp interactive modeling method,described the modeling process and a few matters needing attention.The construction of model databases improved the efficiency of the method in 3D modeling.The models making by this method provided a data source for 3D GIS.Practice shows that the method is feasible and practical in limited economic and technical conditions.
出处
《地理空间信息》
2012年第3期94-96,2,共3页
Geospatial Information
基金
国家环保部公益性行业专项基金资助项目(200809128)
国家自然科学基金资助项目(50774080)
