Data frame was designed to store digital map data.
规定了数字地图分区存放的数据结构。
Note: the information collected in the Digital Map Data Order form will be used for the purpose of processing the Order only.
注：数码地图资料订购表格内收集的资料只会在订购过程中使用。
To improve the efficiency of automatic maps edge matching of massive digital map data of great regions even global ones, virtual stitching algorithm based on vector ID mapping is presented.
为了改善数字地图图幅自动接边算法在处理大区域甚至全球范围的大数据量图幅接边时效率低的问题，提出了基于矢量id映射的“虚拼接”算法。
Firstly, the thesis researches the basic theory of the GPS and GIS, which provide corresponding concepts for researching map matching algorithms with GPS positioning information and digital map data.
首先本文阐述了GPS和GIS的基本原理，为利用GPS定位信息和电子地图信息进行地图匹配算法的研究提供了相关理论。
TacView functions include tactical data link display, portable mission planning, digital moving map, weather imagery, electronic aeronautical charts and sensor imaging.
其功能包括战术数据链路显示、便携式任务规划、数字化移动地图、气象图片、航空电子图标以及传感器成像。
The professional-networking site likes to call the data it sits on "the economic graph", a digital map of the global economy.
这家职业网站喜欢称它坐拥的数据为“经济图”，即全球经济的数字地图。
Therefore how to perform the map data quality control becomes a very important problem in the digital information engineering of military surveying and mapping.
因此如何进行地图数据质量控制就成为军事测绘数字信息工程中一个十分重要的问题。
Relying on database and geographic data engine discusses and designs the organization and management of multi-source data in digital map publishing system.
以数据库为依托，借助地理数据引擎，探讨并设计了对多源数据在数字地图出版系统中组织及管理；
This paper analyzes the problems in data input of digital map publish especially in vector data input, and indicates the importance of multi-source vector data use.
文中分析了当前数字地图出版中数据输入尤其在矢量数据输入方面存在的诸多问题，指出了多源矢量数据利用的重要性。
On the base of analyzing the character and structure of the point, line, area symbols, a data structure of map symbol base which serves the symbolized output in digital mapping is put forward.
论述了在数字制图环境下地图输出的特点，在分析了地图上点、线、面符号特征和构造原理的基础上，提出了一种用于数字地图符号化输出的地图符号库数据结构。
This thesis deals with the necessity of establishing the standards of the digital map of GIS, discussing the characteristic and brings about a data structure of the GIS-oriented digital map.
论述了制订面向GIS数字地图标准的必要性和紧迫性，探讨了面向GIS数字地图的特点，最后提出了一种面向GIS数字地图的数据结构。
Data quality controlling is a important index for topographic digital map.
数据质量控制是良好的数字地形图质量的重要保证。
Then, the entity, entirety and entirety set (or polymer) of digital map are defined and the data model of digital map is discussed.
其次，从地图信息结构特点出发，定义了数字地图实体、整体、聚合体，并在此基础上给出了数字地图实体的数据模型。
The map matching algorism, the fusion of the road data in digital map and the positioning data given by GPS can effectively improve the positioning accuracy in navigating system for vehicle.
融合电子地图中的道路数据和GPS所提供的定位数据的地图匹配算法，可以有效地提高车辆导航的定位精度。
Based on the use of digital map, this paper discussed some problems closely related to ITS such as the data structure, construction and functions of the digital map.
本文主要从应用的角度出发，探讨了导航电子地图的数据结构、建立、功能等与智能交通密切相关的问题。
The experiment achieved success, the inconsistencies in the experimental data (which is a piece of real digital cadastral map) are checked out and corrected.
实验取得了较好的效果，发现并改正了实验数据（一幅真实数字地图）中的错误。
This paper states the geographical map management system of Xishan coal mining area. Xishan coal electricity group company builds the company standard data-base for 2GB digital geographical map.
为了实现测绘成果资料的科学化管理，建立了西山矿区地形图管理系统，以2GB的数字化地形图创立了一个西山煤电集团公司规范的数据库。
In the geology field, seeking a good data model for geo-data management become a hot issue to study for gis experts and geologists. Object-oriented digital geologic map data just cater to this demand.
在地学领域中，寻求一种更适合的数据模型已成为一种必然，面向对象的数字地质图数据模型的提出正是迎合了这一需求而产生的。
In ground vehicle navigation system with GPS, it is necessary that data in GPS receivers be displayed on the digital road map in real time.
在GPS地面车辆导航系统中，需要将GPS接收机收到的数据在电子地图中实时地显示出来。
The collected ground true data includes topography map with scale of 1:50 000 and the corresponding Digital Elevation Model (DEM).
收集的地理实况数据包括1：5万的地形图和根据该地形图经数字化处理生成的数字高程模型(dem)。
Digital navigation map is fundamental part for VNS, so map data actuality will directly exert an influence on navigation accuracy.
导航电子地图作为导航系统的重要基础，数据的现势性如何直接影响到导航的准确与否。
Then, by applying this algorithm to the picture after pretreatment, we realize its edge-detection and get vector graphical data. As a result, we solve digital problem of geological contour-map.
然后，对预处理后的图像运用此算法实现了地质等值线图的边缘探测，并得到矢量图形数据，从而解决了地质等值线图件数字化问题。
The paper focuses on the design from the overlay, the control design, digital map display Settings as well as transportation management systems associated with other aspects of the data set.
文中着重从叠加层的设计、控件的设计、电子地图的显示设置以及与运输管理系统中的数据关联等方面进行了阐述。
GPS data adopts WGS-84 Coordinate, while the digital map adopts Beijing 54 Coordinate. So it is a key to solve that translate the WGS-84 Coordinate to Beijing 54 Coordinate.
GPS数据采用WGS- 84坐标系，而电子地图往往采用北京54坐标系，因而，如何将WGS - 84坐标转换为北京54坐标成为系统必须解决的一个关键问题。
GPS data adopts WGS-84 Coordinate, while the digital map adopts Beijing 54 Coordinate. So it is a key to solve that translate the WGS-84 Coordinate to Beijing 54 Coordinate.
GPS数据采用WGS- 84坐标系，而电子地图往往采用北京54坐标系，因而，如何将WGS - 84坐标转换为北京54坐标成为系统必须解决的一个关键问题。
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