Network Geographic Information System

Guidance: This chapter first introduces the basic knowledge of computer networks, including definitions, topology, classification, network protocols, etc. Then it introduces the Internet and the currently popular WWW and HTML languages.

The second section discusses the specific implementation of network-based distributed computing and geographic information systems in distributed computing environments.

The third section mainly introduces several technical solutions for publishing spatial data on the Web, namely implementing WebGIS, and compares them.

Principles, Technologies, and Methods of Geographic Information Systems  102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.