what is webgis

WebGIS (Web Geographic Information System) refers to GIS that works on the Web. It is an extension and development of traditional GIS on the Internet. It has The characteristics of traditional GIS can realize basic GIS functions such as spatial data retrieval, query, cartographic output, and editing. It is also the basis for geographic information release, sharing, exchange and collaboration on the Internet.

WebGIS is a technology that uses Web technology to expand and improve geographic information systems. It is a network-based client/server system;

Use the Internet to exchange information between the client and the server; #) It is a distributed system, and users and servers can be distributed in different locations and on different computer platforms.

The main functions of WebGIS are spatial data publishing, spatial query and retrieval, spatial model services, and the organization of Web resources.

Globalized server application

Internet users at any WWW node around the world can access various GIS services provided by the WebGIS server, and even Global GIS data updates can be performed.

Truly popular GIS

Due to the explosive development of the Internet, Web services are entering thousands of households, and WebGIS provides more users with the opportunity to use GIS.

Now popular WebGIS platforms include: ARCIMS, Mapgis IMS, Super Map IS, TopMap World, MapXtreme and other domestic and foreign mature products.

WebGIS can use a general browser to browse and query, or access WebGIS functions through plug-ins, ActiveX controls and Java Applets on the browser. The browser and these plug-ins are Free and easily accessible, it greatly expands the scope of potential users of GIS.

In the past, due to its high cost and technical difficulty, GIS often became a professional tool owned by a few experts and was difficult to promote.

Good scalability

WebGIS can easily be seamlessly integrated with other information services in the Web and can create flexible and changeable GIS applications.

Cross-platform features

Before WebGIS, although some manufacturers provided corresponding GIS software versions for different operating systems (such as Windows, UNIX, Macintosh) , but no GIS software is truly cross-platform.

And Java-based WebGIS can achieve "write once, run anywhere (write once, run anywhere)", giving full play to its cross-platform features.

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