空间数据结构

GIS中空间数据结构和空间数据模型一体化研究

Integrated Study on Spatial Data Structure and Spatial Data Model in GIS

GIS空间数据结构的研究

Research of Spatial Data Structure in GIS

面向GIS的大比例尺数字地形图空间数据结构探讨

Discussion on Structure of Spatial Data of Large Scale Topographic Maps for GIS

一种关系化的GIS空间数据结构

Research on a Database-based Spatial-data Structure in GIS

空间数据结构和空间数据模型是研究GIS和空间数据库的核心内容。

Spatial data structure and spatial data model are the hardcore in the research of GIS and spatial data base .

本文在对现有三维空间数据结构进行分析的基础上，结合三维空间地质数据特征，提出实现地质体三维可视化的方法CAD边界表示法。

Firstly the author analyzes the 3D spatial data structure and brings forward " method of CAD-Boundary Representation " which is a 3D visualization method of geological entity .

结合中压配电网空间数据结构的特点，开发了配电网地理信息系统（GIS）空间数据库，为配电网规划工作提供了可靠的辅助手段。

Based on analyzing the specialties of distribution network spatial data structure , this paper firstly designs GIS spatial database of distribution network and provides credible assistant design method for distribution network planning .

地理信息系统的发展与空间数据结构的优化密不可分，栅格数据与矢量数据之间的高效转换是GIS的关键技术之一。

The development of GIS is closely related to the optimization of spatial data structure . The efficient mutual conversion between vector and raster data is one of the key technologies in GIS .

设计区别于传统空间数据结构的城市消防的GIS空间数据结构，实现了对消防的最优路径分析功能，增强了系统的空间分析能力；

It design the space data construction of the urban fire-fighting according to GIS different from the traditional space data structural , realize the superior path analysis function of the fire-fighting , strengthen the analytical skill of space of the system ;

场地液化势的空间数据结构特征可由不同参数的自回归神经网络（GRNN）来模拟。

The spatial data structural characteristics of liquefaction potential of site can be mapped by different spread values .

与其它空间数据结构相比，栅格DEM数据在提取地形特征时有着特殊的优越性，因此基于栅格DEM的数字地形分析技术在当今的地学应用中有着不同寻常的地位和意义。

It is more advantages that topographical information is extracted from grid DEM than from other spatial data . Accordingly , it is very important that the application of DTA based on grid DEM nowadays .

在图形管线的应用程序阶段，本文成功的采用BSP树组织空间数据结构，实现了大数据量场景的视锥裁减技术，从而解决了大数据量场景实时绘制问题。

In the application processing stage of the 3D graphics pipeline , we successfully implemented the culling algorithms by using BSP , so we can provide real-time performance on the rendering of large database scenes .

论文结合二维点阵和PR四分树定义了布种模型的空间数据结构，并提出自适应生长/剪枝算法和检索算法实现组播地址的动态分配和快速搜索。

This paper combines 2-dimension lattice and PR quadtree structure to design the spatial data structure of seeding model and presents the adaptive growing and pruning algorithms for dynamic allocation , together with the searching algorithm for rapid searching the multicast address for a location .

在并行空间数据结构的设计方面，本文重点论述了矢量空间数据的建模方法，遵循OGC组织提出的简单要素模型规范，使用面向对象模型对其进行描述与表达。

On the aspect of the design of parallel geo-spatial data structure , the paper focuses on the modeling methods of vector geo-spatial data structure , and follows the specification of the simple feature modeling provided by OGC organization and describes the data structure using object-oriented programming .

给出了空间数据结构的一个综述。

This paper gives the overview of spatial data structures .

一体化空间数据结构及其索引机制研究

Study of integrated spatial data structure and spatial index mechanism

施工总图空间数据结构研究

Research on Spatial Data Structure of General-plan of Construction Managing Information System

⑷提出了三维空间数据结构及相关算法。

Then a 3D spatial data structure is proposed .

建立了合适的空间数据结构。

Buliding a fitted spatial data structure .

给出了城市公交查询系统的空间数据结构。

Spatial data structure of the implementation for the city public transportation query system was proposed .

空间数据结构分析

Analysis of Spatial Data Structures

研究了地理信息的空间数据结构，并对空间数据库的特点和应用做了详细的分析。

It studies on the spatial data structure of geography information and analyzes the characteristics and application of spatial databases .

根据空间数据结构特点，研究地理网络环境下供电系统设计的关键算法；

The key algorithm for power supply design in geographical network environment is studied in view of the characteristics of spacial data structure .

目的体绘制是三维可视化的有效方法，但是它处理的数据量巨大。本文提出一种称为有序体数据的空间数据结构，它可以有效地加速体绘制而对图像质量没有影响。

Objective To describe a spatial data structure called sorted volumetric data structure which speeds up the volume rendering and will not affect image quality .

对地理信息系统的基本功能与空间数据结构和关于空间数据库的空间数据模型、空间关系、空间查询语言、空间索引技术作了深入的研究和探讨。

We explain the basic function and characters of GIS , spatial data model , spatial relationship , spatial query language and spatial index technique of Spatial Databases in detail .

该技术使得四分树的构造速度相对于传统的四分树构造方法大大提高。该方法可运用到许多基于规则划分的空间数据结构上，来加快它们的构造。

These techniques can bring significant speedup comparing to traditional quadtree building methods and can be used in many spatial data structures based on regular partition to speed up their constructions .

在对城市景观主要建模对象进行分类的基础上，建立了三维空间数据结构，实现了地形和地物模型三维重建的系列算法。

Based on the classification of the primary modeling objects in the city scene , we separately rebuild the model of the terrain and objects according to the 3D spatial data structure .

在空间数据结构分析中，对动态分段在车辆导航系统中的应用进行了研究，并开发了实用的动态分段程序。

In the analysis of the spatial data structure , it researches on dynamic segmentation technology and its application in VNS . As a result , the paper developed a practical dynamic segmentation software .

然后分析了各种地理信息系统的空间数据结构和各软件典型的数据格式，并对其进行了详细比较，选出本系统所使用的数据格式。

And then this thesis analyzes many spatial data structures and typical data formats of geographic information system , and makes a detailed comparison and a election of data format used in the system .

阐述空间数据结构、空间数据库的相关理论和概念，并介绍两种现今比较典型的空间数据库体系结构。

In the thesis we expound the general theories and concepts of the spatial data structure , spatial database and spatial data warehouse , and introduce two typical prototype systems of spatial data database .