An object - oriented 3d spatial data model in cybercity 一種面向?qū)ο蟮臄?shù)字城市三維空間數(shù)據(jù)模型
Dynamic and multi - dimensional spatial data modeling : models and methods 空間數(shù)據(jù)模型與方法的研究
3d modeling methods and spatial data model of layered rock - mass 層狀巖體三維構(gòu)模方法與空間數(shù)據(jù)模型
The summary of 3d spatial data models 三維空間數(shù)據(jù)模型綜述
Research on spatial data model of pipelines network underground city geographical information system 城市地下管網(wǎng)地理信息系統(tǒng)空間數(shù)據(jù)模型研究
And all kinds of spatial data models which are the basis of algorithm on visualization are discussed 并研究概括了當前流行的二維、 2 . 5維、三維各類空間數(shù)據(jù)模型與數(shù)據(jù)結(jié)構(gòu)。
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 并通過模型實例驗證了構(gòu)模方法與空間數(shù)據(jù)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 本文以空間數(shù)據(jù)庫為基礎(chǔ),主要研究三維gis中的空間數(shù)據(jù)模型和三維可視化技術(shù)。
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 本文結(jié)合昆明市綜合地下管網(wǎng)信息系統(tǒng)設(shè)計和開發(fā)的實際工作,探討了地下管網(wǎng)空間數(shù)據(jù)模型的建立和應(yīng)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 論文首先從當前webgis空間數(shù)據(jù)模型當前普遍存在的問題出發(fā),分析和設(shè)計了空間數(shù)據(jù)模型,建立了數(shù)字地球需要的統(tǒng)一數(shù)據(jù)模型與面向?qū)ο蟊磉_。