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Introducing Geographic Information Systems with ArcGIS: A Workbook Approach to Learning GIS, 3rd Edition by Michael D. Kennedy

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Proximity Calculation with Rasters

GIS is meant to help human beings in understanding both natural and human-generated phenomena. A fundamental concept in both arenas is the idea of closeness. Raster analysis can play a key role. We will focus on the following:

  • The importance of distance in geographic analysis and synthesis
  • How to use ArcGIS Spatial Analyst to find the distance from anywhere to places of interest
  • The relationship between distance and cost
  • How to calculate the cost effects of other factors besides distance
  • How to find the shortest or least expensive path from anywhere to places of interest
  • How to determine which is the closest place of interest and/or the place of interest that can be reached with the least cost

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