map display

Chapter Three, taking Tianjin for example, illustrates in detail the conversion method of geographic coordinate on the map, map display control, inquired resulting display, three dimensional display, data management and output and printing of a map, etc.

然后，以天津市为例，详细阐述了地图上地理坐标值的转换方法、地图显示控制、查询结果显示、三维立体显示、数据管理以及地图的输出打印等。

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Through practice and production application, the author proves that the achievements can primely solve the management and more accessing to multiple map symbol databases, control map display effect, improve map display speed, obtain the same display effect on screen and on printer.

实践证明，该研究成果可以很好地解决多地图符号库管理和高效访问问题，改善地图的显示效果和控制地图的显示速度；另外还可以保证地图屏幕显示和打印输出效果的统一。

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GIS map data sharing mine electromechanical device information database, and database data processing and control the map display, dynamic map and static map data combined with the new storage method to generate the map, the map to facilitate the management, controlled performance greatly improved.

GIS地图数据共享煤矿机电设备信息数据库，通过对数据库数据综合处理并控制地图的显示，采用动态地图和静态地图数据结合的新储存方法生成地图，使地图方便管理，可控性能大大提高。

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On this basis, describes the tasks of the dynamic star map display system, which can be as a core component for realizing stellar database query, navigation satellite selection, coordinate transformation, data transmission and the star map display updating.

在此基础上，阐述了动态星图显示系统的工作任务，即此系统是动态星模拟器中实现星表检索，导航星选取，坐标变换，信息传输和星图实时刷新显示的核心部件之一。

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NET 2003, this system performs well on data integration, geographic map display, information search, tax limit setting and business analysis functions.

NET2003的环境下，较好地实现了数据集成、地图显示、信息查询、纳税定额修订、业务分析等功能。

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Presented in this paper based on virtual technology, fire training system including: 1. Construction and building three-dimensional map display and interaction with the user. 2. Fire simulation. 3. Escape and rescue to guide decision-making.

本文所提出的基于虚拟技术的火灾训练系统包括：1.建筑三维地图构造和显示及与用户的交互；2.火灾的模拟；3.指导逃生和救援决策。

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Finally, discussed the approach of two-dimensional map display and a half arid two-dimensional respectively, and give the test results chart.

最后分别讨论了二维和二维半地图显示的方法，并给出了试验效果图。

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