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Create Concave Hull

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The Concave Hull function creates a polygon that represents the area occupied by a set of data points.

Convex Non Convex (Concave)
Convex Hull Concave Hull
Source Data Convex Hull
   
Concave Hull 1 Concave Hull 2

Inputs:

Outputs:

ToolBox implementation
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Command line syntax

ET_GPCreateConcaveHull <input_dataset> <out_feature class> <distance_threshold>

Parameters

Expression Explanation
<input_dataset> A Point, Multipoint, Polyline or Polygon 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)
<distance_threshold> A Double representing the threshold for creating a concave hull - in the units of the spatial reference of the input dataset

Scripting syntax

ET_GPConvexHull (input_dataset,out_feature class, distance_threshold)

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

.NET implementation
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CreateConcaveHull(pInFC As IFeatureClass, sOutFName As String, dDistanceTolerance As Double) As IFeatureClass

Copyright Ianko Tchoukanski