摘要
针对三维地理场景中异构三维模型数据统一表达问题,提出了一种基于地理格网的三维模型数据统一表达方法。该方法首先构建覆盖测区的地理格网模型,以此作为异构三维模型数据统一组织的空间基准。其次,建立三维模型数据与地理格网单元的映射关系。在此基础上,设计了一种基于XML的三维模型数据统一描述规则,从数据属性、空间范围、空间关系等方面对异构三维模型数据进行统一描述,将异构三维模型数据规划在地理格网的统一管理中。最后,采用山西省某体育馆数据进行试验分析,验证了本文方法的有效性。
This paper proposes a unified representation approach for 3 D models based on geographic grid to represent heterogeneous 3 D models in geographic scenes.Firstly,a geographic grid model is developed to cover the research area and works as a spatial framework for unified organization of heterogeneous 3 D models.Then,the mapping relationships between 3 D models and geographic grid cells are established.Based on which,a unified description rule for 3 D models is designed using XML to include heterogeneous 3 D models to the unified management of geographic grids.Last but not least,the approach has been applied to a gymnasium in Shanxi Province and results indicate that this approach is feasible.
作者
王金地
霍亮
慕旭
秦高雅
曹存相
WANG Jindi;HUO Liang;MU Xu;QIN Gaoya;CAO Cunxiang(School of Geomatics and Urban Spatial Infolrmation,Beijing University of Civil Engineering and Architecture,Beijing 102616,China;Key Laboratory of Modern Urban Surveying and Mapping,National Administration of Surveying,Mapping and Geoinformation,Beijing 102616,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing University of Civil Engineering and Architecture,Beijing 102616,China)
出处
《地理信息世界》
2019年第2期87-91,共5页
Geomatics World
基金
国家重点研发计划(2016YF C0803108)
北京建筑大学未来城市设计高精尖创新中心重大项目(UDC2018031321)资助
关键词
地理格网
异构三维模型数据
多尺度
统一表达
geographic grid
heterogeneous 3D model
multi-scale
unified representation
