**GIS电子地图定制开发技术**
The definition of "geographic Information System" is made up of two parts. On the one hand, geographic information system (GIS) is a new interdisciplinary subject, which is the theory and method of describing, storing, analyzing and outputting spatial information. On the other hand, geographic information system (GIS) is a technical system, which is based on geospatial database, uses geographical model analysis method, provides various spatial and dynamic geographic information in time, Computer systems for Geographic research and geographic decision-making services ".
A Classification of GIS Systems
1. Basic type (tool type) geographic Information system:
GIS tool packages, such as ARC/INFO/SITEMAP, have basic GIS functions such as spatial data input, storage, processing, analysis and output.
2. Application-based Geographic information systems:
A major component of a profession, field or work, including thematic geographic information systems and regional integrated Geographic information systems
Two Three kinds of development mode of GIS geographic Information System 1.GIS Independent development (bottom-level development)
is not dependent on any GIS tools software, from the spatial data collection, editing to data processing analysis and output, all the algorithms are independent design by the developer, and then choose a programming language, such as Visual C + +, Delphi, C + + builder, etc. Edit the implementation on a certain operating system platform.
2.GIS simple two-time development
It refers to the development of the application system with the help of two development languages provided by GIS software.
Most commercially available GIS tools provide a two-time macro language for users to develop, such as the Sitemapims development language, ESRI's ArcView provides the avenue language, MapInfo MapInfo Professional provides mapbasic language, and so on.
Using these macro languages, the user uses the original GIS tool software as the development platform and develops its own application for different application objects.
3.GIS Integrated two-time development
Most GIS software vendors provide commercially available GIS components such as ESRI's mapobjects, MapInfo's MAPX, etc., which have the basic functions of GIS, and developers can develop two of times based on common software development tools, especially visual development tools.
GIS function controls, such as Esri's Mapobjects and MapInfo Company's MAPX, are provided by the GIS tool software manufacturer to embed GIS functions directly in applications compiled by Delphi and other programming tools. Realizing the various functions of geographic information system
Three Current Common component GIS software
Sitemapims launched for Zhuo Technology
The Sitemapgis of the game map technology
Wuhan Gio Geomap
MapGIS in Hanzhong
Four The related technology of GIS software development
1.GIS development language of geographic information system
Visual c++,visual basic,visual foxpro,borland c++,delphi,c++builder,power builder,java,visual j++,j Builder, ...
2.GIS Network Presentation Technology
The most exciting product of the combination of web technology and GIS technology is WEBGIS (World Wide Web Geographic Information system). WebGIS, in short, is a new technology that uses web technology to expand and refine geographic information systems.
Because the HTTP protocol adopts the request/reply mechanism based on C/s, it has strong user interaction ability, can transmit and display multimedia data on the browser, and the information in GIS is mainly the spatial data that needs to be represented by graphics and images, and the user interacts with each other to query and analyze the spatial data.
These features make it possible for people to use the web to find the spatial data they need and to do all kinds of things.
3.GIS of embedded Technology
Embedded Geographic Information System (Embedded GIS) is an embedded system product which integrates GIS functions, is the application of system design and development level, is a software and hardware hybrid system, it is an ideal solution for navigation, location, map query and spatial data management, which can be widely used in many fields, such as military, Intelligent transportation, tourism, natural Resources survey, environmental research and so on.
4.GIS Multimedia Presentation Technology
Multimedia Electronic map concept: With the support of computer technology, the new map integrates text, graphics, charts, images, sounds, animations and videos. It increases the media form of the spatial information of the map expression, and expresses the spatial information intuitively, vividly and vividly in the sense form of visual, auditory and tactile.
Six Application scope of GIS geographic information system
The Geographic Information System (GIS) has made remarkable progress in the last more than 30 years and has been widely used in almost all fields such as resource survey, environmental assessment, disaster prediction, land management, urban planning, post and telecommunications, transportation, military and public security, water and electricity, public facilities management, agroforestry, statistics, commercial finance and so on. (plus surveying and mapping, emergency, petroleum and petrochemical and other national economy in various fields.) )
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GIS Development Consulting Website: www.forbst.com
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Custom development Technology of GIS electronic map