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- This thesis analyzes the importance and process of progressive transmission,the effects of progressive transmission to network,the structure of spatial vector data and spatial data interaction between client and server. 文章介绍了使用渐进传输的原因,并具体分析了渐进传输过程、采用渐进传输对网络的影响、空间矢量数据渐进传输的数据结构及客户端与服务器数据交互过程。
- Optimization Strategy for Spatial Vector Data Transmission in Internet GIS 上矢量型空间数据传送的最优化策略
- spatial vector data 空间矢量数据
- DLG, the vector data file, is widely used because vector data can be used for various spatial analysis. DLG是矢量数据文件,满足GIS各种空间分析的要求,用途广泛。
- For reasons you ll see later, we classify PostGIS data as vector data. 我们将PostGIS数据归类为矢量数据,其原因将在下文介绍。
- After discussing the various spatial vector channel simulation models, it forms the AOA and TOA of multipath fading signals by GBSBEM model. 在分析了各种空间矢量信道的仿真模型后,采用GBSBEM模型构造出多径衰落信号的到达时间和到达角。
- The thesis discusses a method of vector data compression: subsection Douglas algorithm with the goniometry. 本文提出了一种矢量数据压缩方法:角度分段道格拉斯算法。
- At the same time, the stepless scale oriented information compression of vector data is also discussed. 同时也讨论了面向无级比例尺的矢量数据的信息压缩。
- In the joint multiple access systems, which are based on the CDMA and SDMA techniques, the assignment of spreading codes should be based on the orthogonality of the spatial vector of the mobile users. 在基于码分多址(CDMA)和空分多址(SDMA)技术的联合多址系统中,扩频码的分配应根据移动用户空间向量的正交性来进行。
- OpenEV -A 2D/3D application for viewing and analysis of geospatial raster and vector data. 一个浏览和分析地球物理光栅和向量数据的2D/3D应用软件。
- A new set of coordinate-free spatial vector tensor notation and frame projection rules in deriving motion equation of multi-body system using spatial operator algebra is introduced. 进一步发展了空间算子代数符号体系,给出了一组坐标系无关空间矢量,张量和矢阵符号表示和相应的坐标投影规则。
- OpenEV - OpenEV -A 2D/3D application for viewing and analysis of geospatial raster and vector data. 一个浏览和分析地球物理光栅和向量数据的2D/3D应用软件。
- The displaying of vector data graphic on PDA is one of important area in mobile GIS. 基于PDA的矢量图形的快速显示一直是移动GIS研究的一个重要方面。
- Design data are stored primarily as vector data;geographic data consist of a combination of vector and raster data. 设计数据基本上是以矢量数据的形式存储,而地理数据则包含矢量数据和光栅数据。
- Is is necessary to abstract the topology information from preprocessed image while converting grid data into vector data. 栅格格式数据转换为矢量格式数据时必须提取原图像上包含的拓扑信息。
- A vector clustering algorithm is proposed to cope with the inefficacy of traditional clustering algorithms to vector data. 针对传统聚类分析不能有效处理矢量数据聚类的问题,提出矢量聚类算法。
- This paper introduce a new method for automatic registration based on amalgamation of information on TM image and GIS vector data. 摘要介绍了一种新的基于信息融合的TM影像和GIS矢量数据自动配准方法。
- maximal spatial vector to the left 向左最大空间向量
- In GIS and cartology, the boundary searching of discrete object group is an important problem.The traditional algorithm is based on vector data. 摘要搜索离散目标群的边界是地界信息系统(GIS)和地图学中一个重要问题,传统的算法是基于矢量数据的。