Geographic Information Systems

Authored by: Bernhard Seeger , Peter Widmayer

Handbook of Data Structures and Applications

Print publication date:  March  2018
Online publication date:  February  2018

Print ISBN: 9781498701853
eBook ISBN: 9781315119335
Adobe ISBN:


 Download Chapter



Geographic Information Systems (GISs) serve the purpose of maintaining, analyzing, and visualizing spatial data that represent geographic objects, such as mountains, lakes, houses, roads, and tunnels. For spatial data, geometric (spatial) attributes play a key role, representing, for example, points, lines, and regions in the plane or volumes in three-dimensional space. They model geographical features of the real world, such as geodesic measurement points, boundary lines between adjacent pieces of land (in a cadastral database), trajectories of mobile users, lakes or recreational park regions (in a tourist information system). In three dimensions, spatial data describe tunnels, underground pipe systems in cities, mountain ranges, or quarries. In addition, spatial data in a GIS possess nongeometric, so-called thematic attributes, such as the time when a geodesic measurement was taken, the name of the owner of a piece of land in a cadastral database, the usage history of a park.

Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.