Exploring Geographic Information Systems
Geographic Information Systems (GIS) is the organized activity by which people measure aspects of geographic phenomena and processes; represent these measurements, usually in the form of a computer database, to emphasize spatial themes, entities, and relationships; operate upon these representations to produce more measurements, and to discover new relationships by integrating disparate sources; and transform these representations to conform to other frameworks of entities and relationships. These activities reflect the larger context, such as institutions and cultures, in which these people carry out their work. In turn, the GIS may influence these structures. This text provides the comprehensive coverage you will need to master this powerful new technology.
36 pages matching relationship in this book
Results 1-3 of 36
What people are saying - Write a review
We haven't found any reviews in the usual places.
BUILDING BLOCKS OF GEOGRAPHIC INFORMATION
The Conventional View
26 other sections not shown
accuracy algorithm analysis angle applied approach assigned assumptions attribute values basic boundaries buffer cartographic categorical coverage cell Chapter choropleth choropleth map Chrisman combination common complex connect construction contour contour line coordinates cost create Cwmbran Dane County data model data quality data structure database developed digitizing distance dominance rule error evaluation example factors Figure forest geographic information system geometric graphic grid implementation integrated interactions interpolation involves isolated object land levels of measurement linear mathematical matrix measurement framework method neighborhood operations neighbors ordinal ordinal scale overlay parcel pixels plane points polygon problems procedure produce quadtree raster raster representation ratio relationships remote sensing result scale simple slope soil space spatial reference system specific surement surface survey Table tion topological transformations triangles Triangulated Irregular Network units vector viewshed wetlands zones