An object - oriented 3d spatial data model in cybercity 一种面向对象的数字城市三维空间数据模型
Dynamic and multi - dimensional spatial data modeling : models and methods 空间数据模型与方法的研究
3d modeling methods and spatial data model of layered rock - mass 层状岩体三维构模方法与空间数据模型
The summary of 3d spatial data models 三维空间数据模型综述
Research on spatial data model of pipelines network underground city geographical information system 城市地下管网地理信息系统空间数据模型研究
And all kinds of spatial data models which are the basis of algorithm on visualization are discussed 并研究概括了当前流行的二维、 2 . 5维、三维各类空间数据模型与数据结构。
And three kinds of spatial data model : pillar model , tin face model and section model , were built up for these three kinds of rock - mass 并通过模型实例验证了构模方法与空间数据模型的可行性。
In this paper , we focus our research on spatial data model and visualization techniques on the basis of spatial database in 3d gis 本文以空间数据库为基础,主要研究三维gis中的空间数据模型和三维可视化技术。
In addition to an ample research on concerning national software and information material , this article discussed the establishment and application of spatial data model by adhering to practical design and research 本文结合昆明市综合地下管网信息系统设计和开发的实际工作,探讨了地下管网空间数据模型的建立和应用。
Starting from the problem in the spatial data model of webgis nowdays , this paper analysizes and designs spatial data model , and builds a united spatial data model and oriented object expression 论文首先从当前webgis空间数据模型当前普遍存在的问题出发,分析和设计了空间数据模型,建立了数字地球需要的统一数据模型与面向对象表达。