Analyzing the source of spatial data and improving the quality of spatial data are the precondition of building GIS.
分析空间数据来源、提高空间数据质量是建立地理信息系统的前提。
The basic spatial database is the core of the digital City, and the quality of spatial data is the key factor in database construction.
基础空间数据库是数字城市的核心，而数据质量的高低又是数据库建设成功与否的关键。
The error sources, types and elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行地了研究。
The error sources, types and the elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行了研究。
The data he compiled yielded a mathematical formula for the relationship between a room's echo duration, its quantity and quality of sound-absorbing materials, and its spatial volume.
他收集的数据得出了一个关于房间回声持续时间、吸音材料的数量和质量以及空间体积之间关系的数学公式。
The precision analysis and quality control of spatial data is one of the main contents of the research on geographic information science.
空间数据的精度分析和质量控制是地理信息科学研究的主要内容之一。
Spatial data quality is the basis of cadastral data's updating, query and analysis.
地籍空间数据质量是地籍数据更新、信息查询与分析的基础。
The quality of cadastral spatial data is the basis of cadastral data's updating, query and analysis.
地籍空间数据质量是地籍数据更新、信息查询与分析的基础。
The experiment shows that these two index methods greatly improve the efficiency of spatial data quality detecting.
实验表明，空间索引的引入，大大提高了数据质量检查效率。
Discusses the basic theory, implementation steps of attribute connection by spatial position, and puts up with the countermeasures for the quality control and check of the spatial data.
探讨了空间位置的属性连接方法的理论基础与实施步骤，并提出了空间数据的质量控制与检查的对策。
Currently the gathering, update and usage of high quality and up-to-date urban spatial data have become the bottleneck in the construction of "Digital Guangzhou".
高质量、强现势性的城市空间数据的获取、更新和使用问题已成为当前“数字广州”建设中的瓶颈。
Hence, the quality of GIS spatial data, especially the uncertainty of spatial data, is becoming more and more important.
因此，空间数据的质量，尤其是空间数据的不确定性变得越来越重要。
This paper mainly talks over contents which are involved with quality characteristic and quality control of spatial data.
本文主要讨论空间数据质量特性，质量控制所涉及的内容。
The researching of uncertainty and quality control of spatial data is considered as an important basic theory in GIS.
GIS空间数据不确定性和质量控制的研究是GIS基础理论问题研究中的一个重要内容。
The geological map spatial database is large and complicated. To ensure the quality of database, it is essential to check the data systematically during the database construction.
地质图空间数据库数据量大，内容复杂，为了保证数据库的质量，在地质图空间数据库的建立过程中，对数据的全面系统检查工作是非常必要的。
The fifth chapter analyzesthe results based on visualized data mining, about spatial distribution discipline of SecondSonghua River water quality and it's affecting factors.
第五章，基于可视化数据挖掘的结果分析，主要包括二松水质状况的空间分布规律以及影响因子分析。
This paper introduces elements and methods of design for Spatial Data Quality Check System, and discusses Key technology of Spatial Data Quality Check System.
介绍了空间数据质量检查系统的设计原理与方法，并对空间数据质量检查系统实现的关键技术进行详细的论述。
At present, the most common product of spatial data is "4d", and each of them have had its own data quality model.
目前空间数据产品主要表现为“4d”产品，并已分别建立了相应的数据质量模型。
Then the method of data check and evaluating each spatial data quality index was described. The research content and method had succeeded in applying to Guangzhou data check system.
此研究内容与方法在广州空间数据检查系统中成功实现、应用，软件实际应用结果表明，论述方法正确，检验结果可靠。
Based on the monitoring data on water quality and space data, a database of water quality and spatial distribution was established.
将水质监测数据与空间数据相结合，建立了具有时空特征的水质数据库。
The temporal and spatial characteristics of surface water quality in Jiyun river are analyzed based on environmental measurement data.
通过对不同时段和不同监测点环境监测数据的对比分析，研究蓟运河干流地表水质的时空变化特征。
The temporal and spatial characteristics of surface water quality in Jiyun river are analyzed based on environmental measurement data.
通过对不同时段和不同监测点环境监测数据的对比分析，研究蓟运河干流地表水质的时空变化特征。
应用推荐