矢量数据模型 meaning in Chinese
vector data model
Examples
- Fuzzy geographical object modeling based on vector data model
基于矢量数据模型的模糊地理对象建模 - Key algorithm for creating topology relation of three dimension vector data model
建立三维矢量数据模型拓扑关系的关键算法 - 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。 - This paper supplies systematic research on data organization method which is suitable for hngis , at the same time studies deeply on the optimization of transit route with many goals in highway network . ( 1 ) based on the systematic analysis on the spatial data model and the spatial data structure , through study on two kinds of commonly used gis data models : raster data model , vector data model and the characteristics of highway network , the paper plans the logistic data model of hngis , and proposed the spatial data storing structure based on vector method
本文系统的研究了适合于公路网gis的数据组织方法，同时，对公路网多目标最优出行路径问题也给予了深入的研究： ( 1 )通过对两种常用的gis数据模型(矢量数据模型、栅格数据模型)及对公路网络特征的分析，设计了公路网gis的逻辑数据模型，给出了基于矢量方法的空间数据存储结构。 - Firstly this paper ananlyzed the way and problem of digital city in 3d visualization . then generalizing the development in 3d cis . especially in 3d spatial data model . based on the existing 3d data model , digital city is composed of piont , wire , surface > soild , we can use 3d vector data model in building 3d city model . on the other hand the paper emphasizes 3d reconstruction and 3d interactive of city building model
本文首先分析了数字城市三维可视化所面临的问题和发展现状，总结了当前3dgis ，特别是3d空间数据模型的特点和功能，在此基础上，把数字城市中几何目标分类为：点、线、面、体四种类别，采用了三维矢量数据模型建立三维城市模型，而且本文着重探讨了城市建筑物的三维重建以及三维交互。