Open Table of Contents

Create Concave Hull

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

• The resulting polygon might be concave or convex

Convex	Non Convex (Concave)

• A Concave hull describes better the shape of the point cloud than the convex hull

Convex Hull	Concave Hull

• Many solutions are possible for the same input data. The result depends on the user defined distance threshold. The larger the threshold, the closer the resulting polygon will be to the Convex Hull.

Source Data	Convex Hull
Concave Hull 1	Concave Hull 2

Inputs:

• A  feature layer  (Point, Polyline, Polygon)
• Distance threshold - in the units of the spatial reference of the input dataset

Outputs:

• New polygon  feature class.