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Geoprocessing III The Nature Center Just what is Geoprocessing Geoprocessing is used by everyone that uses ArcGIS Whether you re a new user or an old pro geoprocessing will become an essential part of your day today work with ArcGIS esri So we have to emphasize it 2 esf Laboratory for Applied GIS Two flavors of Geoprocessing Process modeling What we have been talking about Is a model of a physical process Can be static or dynamic iteration Simulation Explicitly model a process in time 3 esf Laboratory for Applied GIS Its Purpose Almost all uses of GIS involve repetition The automation of geospatial tasks Saves time Provides documentation Share methods These methods are called Workflows 4 esf Laboratory for Applied GIS Workflows A Workflow is a collection of Steps and data that define the paths that can be taken to complete a task So when presented with a problem with a set of criteria that must be met You generate a workflow 5 esf Laboratory for Applied GIS And the derived workflow is 1 What tools would be used for each of the criteria 2 In what order would these subtasks be undertaken 3 Graphically 6 esf Laboratory for Applied GIS Schematically Data Process Data Process Data Or by text list 7 esf Laboratory for Applied GIS Exercise 8 We desire that the selected location Tax Parcel be no more than 6 miles from each of the schools If absolutely necessary this distance can be expanded but in no case can it be more than 10 miles The selected parcel s should be between 10 and 20 acres The selected parcel s must have both forest and agriculture cover types the nearer 50 50 the better The selected parcel must contain a stream It is preferable that the parcel be owned by the town the county Lewis or the state But the Districts would be willing to purchase the selected parcel if necessary 8 esf Laboratory for Applied GIS And Very similar to that we discussed last week In that one we set out a workflow Select parcels acres 20 and acres 40 What is the rest 9 esf Laboratory



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