QQ客服 官方微博 反馈留言

	A ubiquitous knowledgeable data representation model (UKRM) for three-dimensional geographic information systems (3D GIS)
	Zhang S. Q.; Zhou, C. H.; Zhang, J. Y.; Chen, X. C.; Zhang, YJ; Zhu, JT
	2016
关键词	Discrete curved surface (DCS) Discrete body (DB) Discrete structure Function structure Mapping structure "2D/3D" integrated representation 3D GIS data model UKRM model spatial objects
英文摘要	In the face of complicated, diversified three-dimensional world, the existing 3D GIS data models suffer from certain issues such as data incompatibility, insufficiency in data representation and representation types, among others. It is often hard to meet the requirements of multiple application purposes (users) related to GIS spatial data management and data query and analysis, especially in the case of massive spatial objects. In this study, according to the habits of human thinking and recognition, discrete expressions (such as discrete curved surface (DCS), and discrete body (DB)) were integrated and two novel representation types (including function structure and mapping structure) were put forward. A flexible and extensible ubiquitous knowledgeable data representation model (UKRM) was then constructed, in which structurally heterogeneous multiple expressions (including boundary representation (B-rep), constructive solid geometry (CSG), functional/parameter representation, etc.) were normalized. GIS's ability in representing the massive, complicated and diversified 3D world was thus greatly enhanced. In addition, data reuse was realized, and the bridge linking static GIS to dynamic GIS was built up. Primary experimental results illustrated that UKRM was overwhelmingly superior to the current data models (e.g. IFC, CityGML) in describing both regular and irregular spatial objects.
出处	Science China-Earth Sciences
卷	59
期	4
页	780-794
收录类别	SCI
语种	英语
ISSN号	1674-7313
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43903]
专题	生态系统网络观测与模拟院重点实验室_生态网络实验室
推荐引用方式 GB/T 7714	Zhang S. Q.,Zhou, C. H.,Zhang, J. Y.,et al. A ubiquitous knowledgeable data representation model (UKRM) for three-dimensional geographic information systems (3D GIS). 2016.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。