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数码城市GIS中建筑物室外与室内三维一体化表示与漫游
引用本文:李德仁,刘强,朱庆.数码城市GIS中建筑物室外与室内三维一体化表示与漫游[J].武汉大学学报(信息科学版),2003,28(3):253-258.
作者姓名:李德仁  刘强  朱庆
作者单位:武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079
基金项目:测绘遥感信息工程国家重点实验室开放研究基金资助项目(010302).
摘    要:介绍了数码城市中室外与室内场景的数据管理及可视化等关键技术,对室外与室内场景进行了综合比较,讨论了室内外场景一体化的表示思想。

关 键 词:数码城市  三维  一体化  GIS  数据管理
文章编号:1671-8860(2003)03-0253-06
修稿时间:2003年3月25日

An Integrated Representation of Outdoor and Indoor in CyberCity GIS
LI Deren,LIU Qiang,ZHU Qing.An Integrated Representation of Outdoor and Indoor in CyberCity GIS[J].Geomatics and Information Science of Wuhan University,2003,28(3):253-258.
Authors:LI Deren  LIU Qiang  ZHU Qing
Institution:LI Deren 1 LIU Qiang 1 ZHU Qing 1
Abstract:The idea of an integrated representation of outdoor and indoor in CyberCity GIS is put forward in this paper. Firstly, the difference between the representation of 3D buildings based on CAD and that based on GIS is introduced. The applications of 3D buildings based on GIS can not only implement some basic 3D GIS functions but also be combined with DEM, DOM and DLG data.Secondly, data management methods for outdoor and indoor scenes are discussed respectively. A pyramid structure for DEM/DOM data management and an R + tree index for 3D vector data management in outdoor scenes are introduced. A subdivision method for floor plans in indoor scenes is discussed. Thirdly, dynamical visualization methods for outdoor and indoor scenes are discussed respectively. The LOD method and the memory paging technique are applied in outdoor scenes. The visibility method is applied in indoor scenes. Fourthly, the indoor is compared with the outdoor from some aspects such as dimensions, amount of data and visualization, fundamental data, objects, editing function, interactive querying function, and statistics function.Lastly, the idea of an integrated representation of outdoor and indoor in CyberCity GIS is summarized from vision, dynamical interactive walkthrough, data organization and management, GIS functions, and data loading.
Keywords:CyberCity  three-dimensional  outdoor  indoor  integrated representation
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