Exploring Geographic Information Systems
This exploration of geographic information and geographic information systems (GIS) expands the discussion beyond the normal input-processing-output sequence. It begins by examining the manipulations that support analytical uses of GIS, including measurement and frameworks, representations, data quality, transformation and operations, parametric mapping, simple logic and overlay, taxonomy, distance transformations and surfaces. It then moves on to discuss operations that connect the practical exercises in the book to professional applications of GIS techniques in bureaucratic, social and cultural contexts.
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BUILDING BLOCKS OF GEOGRAPHIC INFORMATION
The Conventional View
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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