spatial data model造句
例句与造句
- 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 - It's difficult to find spatial data model in a sentence. 用spatial data model造句挺难的
- 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。 - The system adopts spatial data model based on the vector data model ; topology relation model uses spatial data model combined with spatial data index ; and makes use of relation database to save spatial entity data
本系统采用基于矢量数据模型的空间数据模型；拓扑关系模型采用空间数据模型与空间数据索引结合；采用关系数据库存储空间对象数据。 - The validity and practicability of the presented models are proved from theory and actual application , and the presented spatial data model is proved to commendably satisfy with the demand of the above special gis applications
通过理论探讨和实际的应用验证，证明了该模型能很好地满足该类特殊应用的基本要求，同时也证明了该模型的有效性和实用性。 - In this paper , we describe in detail the procedure of modeling with this approach : based on spatial data model , both abstract model and discrete model needed , defining spatio - temporal algebras in two abstract levels
本文详细论述了基于这种方法的时空数据的建模过程：以空间模型为基础，分抽象模型和离散模型，定义了两个抽象层次的时空代数系统。 - Two kinds of multi - resolution spatial data model are studied in this paper . one is the feature model and hoom model based on dlg data . the other is multi - resolution dem model based on terrain data using the algorithms of self - adaptive triangular regular networks and hierarchical triangular irregular networks
论文主要对两种类型的多分辨率空间数据模型理论和实现技术进行研究，第一类空间数据是数字线划图数据dlg ，第二类是数字高程模型数据dem 。 - Spatial data model is formalized according to partial order relationship , equivalence relationship and simplicial complex theory . a formalizing two - tuple ( m , f ) multi - resolution spatial data model is presented . based on the jarno peschie algorithms , an improved algorithm of road network map generalization is developed
应用偏序关系、等价关系和单纯复形理论，初步研究了多分辨率空间数据模型形式化表达方法，提出了一个二元组形式化多分辨率空间数据模型。
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