审核和验证GIS数据的正确性。
Several open source tools are handy for working with GIS data.
有几个开源工具可用于GIS数据。
Experience with GIS data compilation or incremental update.
有GIS数据编译或者增量更新经验。
Traditional GIS data models can not reflect geographical continuity.
传统GIS数据模型反映不了地理世界的连续性。
GIS data stored within a PostgreSQL database are fully searchable using SQL-92.
存储在PostgreSQL数据库中的GIS数据完全可以使用SQL- 92搜索。
Import and export vector and raster data, convert between different GIS data formats.
导入和导出矢量数据及栅格数据，实现多种GIS数据格式之间的转换。
Applications store GIS data using two distinct data structures: raster data and vector data.
应用程序使用两种不同的数据结构存储GIS数据：栅格数据和矢量数据。
Public domain GIS data cannot exist without some fairly sophisticated data-storage mechanism.
在没有相当完善的数据存储机制的情况下，公共领域GIS 数据不可能存在。
GIS users can deploy QGIS as a stand-alone GIS data viewer and editor or as part of a GIS tool chain.
GIS用户可以将QG IS部署为单独的GIS数据查看器和编辑器，或者部署为GIS工具链的一部分。
The production of this paper is what is targeted initially: 3D GIS data model and data structure of water conservancy.
本文研究的主要成果是水利工程3DGIS数据模型与数据结构。
However, CAD data and GIS data in the data models are very different; both the software described data in different ways.
但是，CAD数据和GIS数据在数据模型方面存在很大差异，两种软件描述数据的方式不同。
This is very important for the GIS data updating, particularly for those urban areas where ground features change rapidly.
这对于GIS数据更新尤其是对于特征变化很快的城市地区的数据更新十分重要。
Although the 2d representation and 2d visualization method of GIS data is mature, it is far from high-quality visualization.
GIS数据的二维表达和可视化手段已经比较成熟，但事实上距高质量显示还有很大的距离。
During the construction process of GIS projects, many users have the demand on the conversion between the CAD data and GIS data.
在GIS项目的建设过程中，很多用户都有将GIS数据与CAD数据相互转换的需求。
This paper discussed the method and technique of the auto-conversion of isomerous GIS data and integrated using in digital mine system.
探讨了在数字矿山系统中，实现异构数据自动转换和集成应用的技术和方法。
The software, MAPGIS, supports many kinds of GIS data format. Its public data format is comprehensive, clear and easy to be understood.
MAPGIS软件支持多种GIS数据交换，且其明码数据格式较全面、清晰，易于读写。
This paper analyses the concept of data model, the present conditions and developing tendency of GIS data model, example of GIS data model.
对数据模型的概念，GIS数据模型的现状和发展趋势，GIS数据模型实例进行了分析。
Using COM technology, the author design USDE for some popular GIS data for-mats and realize the integration of some different spatial data.
利用COM技术，作者设计出了基于目前几种流行的GIS数据格式的USDE，并成功地实现了对几种不同格式空间数据的集成应用。
The standardization of GIS data management system and business process of production management of distribution network was expounded as well.
并对GIS数据管理体系、配网生产管理业务流程的规范作了相关阐述。
The topographic map scanning digitization is an important acquisition method for GIS data, which has become the mainstream of the map digitization.
地形图扫描数字化为GIS数据源的一种重要获取手段，已经成为地图数字化的主流。
When you talk about GIS data formats, you must consider the large number of formats to support to make each data viewer and GIS application widely usable.
在谈到GIS数据格式时，必然会考虑到要支持的大量格式，以使每个数据查看器和GIS应用程序可以广泛适用。
It is proved that this system has a good potential in traffic accident reconnaissance, GIS data collection applications, mobile mapping and other areas.
该系统在交通事故现场勘测，G IS数据采集、移动测绘等领域均具有巨大应用潜力。
As it is impossible to unify the formats of the files provided by different GISs, the processing of GIS data is onerous when designing the GIS interface.
由于无法统一不同GIS提供的数据文件格式，在进行接口设计时对GIS数据的处理工作十分繁杂。
QGIS handles all three — raster, vector, and database — a state of affairs that took considerable effort for programmers writing GIS data programming libraries.
QGIS处理所有三种数据——栅格数据、矢量数据和数据库，这也是编写GIS数据编程库的程序员的重要努力方向。
Finally, the experiment demonstrates that the method is a highly efficient scheme to automatically convert classified raster map to general format GIS data.
实验表明，该方法是一种由遥感分类图自动转换成g IS通用数据的高效方案。
Data organization is one of primary differences between CAD and GIS. The paper mainly studies the classification and codes from planning CAD data to GIS data.
数据组织是CAD与GIS的主要区别之一，本文主要根据规划CAD数据和GIS数据的特点，研究规划CAD数据到GIS数据的分类和编码。
QGIS handles all three - raster, vector, and database - a state of affairs that took considerable effort for programmers writing GIS data programming libraries.
QGIS处理所有三种数据栅格数据、矢量数据和数据库，这也是编写GIS数据编程库的程序员的重要努力方向。
Spatial data is the main part of the GIS data system, constructing reasonable and efficient spatial indexing has an significant effect on the GIS system performance.
空间数据是GIS系统的主要数据组成部分，建立合理高效的空间数据索引对于GIS系统的性能有着极其显著的影响。
In May 2002, developers created GPLed Quantum GIS (QGIS), a project aimed at beginning and intermediate users who need to access, display, and possibly edit GIS data sets.
年5月，开发人员开发了GPLed QuantumGIS (QGIS)，该项目面向需要访问、显示和可能编辑GIS数据集的初学者和中间用户。
In May 2002, developers created GPLed Quantum GIS (QGIS), a project aimed at beginning and intermediate users who need to access, display, and possibly edit GIS data sets.
年5月，开发人员开发了GPLed QuantumGIS (QGIS)，该项目面向需要访问、显示和可能编辑GIS数据集的初学者和中间用户。
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