Geographic Information System

Author: Tang Guoan
Publisher:
Publish Date: 2000-10-01
Features: This book can be used as a textbook for undergraduate and graduate students majoring in geography, geology, oceanography, meteorology, surveying and mapping, environmental protection, and other related fields in higher education institutions. It can also serve as a reference for science and technology workers in departments engaged in urban management, regional planning, and environmental protection. In recent years, with the emergence of object-oriented GIS technology and new technologies such as web GIS, component GIS, and OpenGIS, the principles and methods of geographic information systems have been continuously enriched and developed. This book was written by the author based on a systematic summary of the fundamental theories, practices, and achievements of the GIS discipline, as well as their teaching experience in GIS-related fields both domestically and internationally in recent years. The book is divided into nine chapters. Chapter 1 introduces the basic concepts, research content, and applications of GIS; Chapter 2 presents conventional and digital methods for describing spatial information, as well as the concept and role of metadata; Chapter 3 describes the structure of spatial data and their relationships; Chapter 4 explains the methods for establishing spatial data, with a more detailed discussion of object-oriented databases; Chapter 5 covers the collection, editing, and digital accuracy of spatial data; Chapter 6 provides an in-depth introduction to the spatial information processing methods of GIS, particularly using DTM as an example to illustrate the applications of raster and vector data types in cartography and geospatial analysis; Chapter 7 discusses the output of GIS products; Chapter 8 explains the system design of GIS; and Chapter 9 presents new GIS technologies and the concept and technical framework of "Digital Earth."