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An Analytic Framework for GIS Modeling (Berry) The Analysis Frame provides consistent “parceling” needed for map analysis and extends discrete point,

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Presentation on theme: "An Analytic Framework for GIS Modeling (Berry) The Analysis Frame provides consistent “parceling” needed for map analysis and extends discrete point,"— Presentation transcript:

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2 An Analytic Framework for GIS Modeling (Berry)

3 The Analysis Frame provides consistent “parceling” needed for map analysis and extends discrete point, line and areal features to continuous Map Surfaces LinesFill Layer Mesh Grid Map A Grid Map consists of a matrix of numbers with a value indicating the characteristic /condition at each grid cell location Map Stack forming a geo-registered set of Map Layers or “Map Stack” Data listing for a Map Stack Drill-down Col 3, Row 22 Analysis Frame Layer Mesh (Berry)

4 An Analytic Framework for GIS Modeling (Berry) Reclassify operations involve reassigning map values to reflect new information about existing map features.

5 An Analytic Framework for GIS Modeling (Berry) Overlay operations involve characterizing the spatial coincidence of mapped data.

6 An Analytic Framework for GIS Modeling (Berry) Proximity operations involve measuring distance and connectivity among map locations.

7 An Analytic Framework for GIS Modeling (Berry) Neighborhood operations involve characterizing mapped data within the vicinity of map locations.

8 An Analytic Framework for GIS Modeling (Berry) Surface Modelling operations involve creating continuous spatial distributions from point sampled data.

9 An Analytic Framework for GIS Modeling (Berry) Spatial Data Mining operations involve characterizing numerical patterns and relationships among mapped data.

10 An Analytic Framework for GIS Modeling (Berry) GIS modeling logic can be expressed as a flowchart of processing with “boxes” representing existing and derived maps and “lines” representing map analysis operations. (MapCalc TM software commands ) ElevationSlope Steepness Cost ElevationSteepness Slope Renumber Elevation Visual Exposure Cost Houses Visual Exposure Renumber Radiate 1) The procedure first determines the individual suitability for the routing criteria … for the routing criteria … Discrete Cost Discrete Cost …2) then identifies the combined suitability combined suitability for each map location … for each map location … Average THISplace Accum Cost Accumulated Cost …3) then accumulates costs from a starting location to all other locations … Spread THATplace Highway Corridor OptimalPath …4) and finally identifies minimum cost route as the steepest downhill path. Stream

11 An Analytic Framework for GIS Modeling (Berry) Table 1. Cross-listing to Further Reading Resource

12 An Analytic Framework for GIS Modeling (Berry) Continued…

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