Thiessen Polygons (Business Analyst)
概要
Generates competitive advantage trade areas for each store by creating boundary lines equidistant from each of the store locations.
図
使用法
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The spatial reference of the output feature class will be the same as the store layer.
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The store layer input feature class must be point features.
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In most cases, the store layer input feature layer will be a Business Analyst store layer.
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Selecting all sites to use will create rings for each point feature in the ring centers (stores) input feature class.
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In ArcMap, trade areas will only be created for features that are within the active study area or analysis extent.
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There must be at least two store points in the input store layer for this tool to work.
構文
パラメータ | 説明 | データ タイプ |
StoreLayer |
The input feature class containing center points for the Thiessen polygons. In most cases, this will be a Business Analyst store layer. | Feature Layer |
StoreIDField |
Unique ID field in the polygon center (store) layer. | Field |
All_Or_Single_Or_Selected |
Defines how to create polygons for points in the input feature layer.
| String |
OutputFeatureClass |
The feature class that will contain the polygon features. | Feature class |
ByID_Or_ByName (オプション) |
Field used to select a single point.
| String |
Single_Site (オプション) |
ID or name of store to be used as the single point. | String |
コード サンプル
# Name: ThiessenPolygons.py # Description: Creates Thiessen based trade areas around selected stores. # Author: ESRI # Import system modules import arcview import arcpy arcpy.AddToolbox("C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Business Analyst Tools.tbx") try: # Acquire extension license arcpy.CheckOutExtension("Business") # Define input and output parameters for the Thiessen Polygons tool StorePath = "C:/temp/sf_stores.shp" IdFld = "STORE_ID" OutPath = "C:/temp/ThiessenPolygons.shp" # Create Thiessen Polygon based trade areas arcpy.ThiessenPolygons_ba(StorePath, IdFld, "ALL", OutPath) # Release extension license arcpy.CheckInExtension("Business") except: print arcpy.GetMessages(2)