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Aggregate Polygons

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Combines the polygons that are within the user specified distance into new polygons. Can be used also to generalize buildings.

Inputs:

Outputs:

Notes: 

Examples:

Input Dataset

Result (No Minimum area of holes specified)

Result (Minimum area of holes specified)

Input Dataset

Aggregate distance = 1 meter

Aggregate distance = 5 meters Aggregate distance = 10 m Aggregate distance = 20 m

ToolBox implementation
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Command line syntax

ET_GPAggregatePolygons <input_dataset> <out_feature_class> <Aggregate_tolerance> <area_tolerance> 

Parameters

Expression Explanation
<input_dataset> A Polyline feature class or feature layer
<out_feature_class> A String - the full name of the output feature class (A feature class with the same full name should not exist)
<Aggregate_tolerance> A Double representing  the aggregation distance. The polygons that are closer to each other than this distance will be combined
<area_tolerance> A Double representing  the minimum area of holes to be preserved. All holes with area less than this tolerance will be removed.

Scripting syntax

ET_GPAggregatePolygons (input_dataset, out_feature_class, Aggregate_tolerance,area_tolerance)

See the explanations above:
<> - required parameter
{} - optional parameter

Example Python script:

import arcpy
arcpy.ImportToolbox("C:/Program Files/ET SpatialTechniques/ET GeoWizards 11.0 for ArcGIS 10.1/ET GeoWizards.tbx")
input_dataset = "C:\\data\\pg1.shp"
result = "C:\\data\\fgdb_test.gdb\\aggregated"
arcpy.gp.toolbox = "C:/Program Files/ET SpatialTechniques/ET GeoWizards 11.0 for ArcGIS 10.1/ET GeoWizards.tbx"
arcpy.ET_GPAggregatePolygons(input_dataset,  result, 10.00, 1000.00)

.NET implementation
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AggregatePolygons(pInFC As IFeatureClass, sOutFName As String, dAggregateTol As Double, Optional dAreaTol As Double = 0) As IFeatureClass

Copyright Ianko Tchoukanski