Aggregate Polygons

Running programmatically

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

Inputs:

Outputs:

Notes:

Examples:

General polygons

Input Dataset

Result (No Minimum area of holes specified)

Result (Minimum area of holes specified)

Buildings

Input Dataset

Aggregate distance = 1 meter

Aggregate distance = 5 meters

Aggregate distance = 10 m

Aggregate distance = 20 m

Running Programmatically

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Parameters

Expression Explanation
Function Name AggregatePolygons
<input dataset> A String representing the input layer. Must be of Polygon type.
<output dataset> A String - the full name of the output layer.
<Aggregation Distance> 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.

Running the function

ETGWPath used in the table below is the  full path to ETGWRun.exe (E.G. "C:\Program Files\ETSpatial Techniques\ETGeo Wizards\ETGWRun.exe")

Language Syntax
Python subprocess.call([ETGWPath, "AggregatePolygons", "input dataset", "output dataset", "Aggregation Distance", "Area Tolerance"])
.NET using ETGWRun.exe StartInfo.FileName = ETGWPath
StartInfo.Arguments = "AggregatePolygons" "input dataset" "output dataset" "Aggregation Distance" "Area Tolerance"
.NET using ETGWOutX.dll AggregatePolygons(input dataset, output dataset, Aggregation Distance, Area Tolerance)
ArcPy arcpy.AggregatePolygons(input dataset, output dataset, "Aggregation Distance", "Area Tolerance")

Notes:

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