Smooth Method (IGeometryEngine)

In This Topic

Converts the multipart into a multipart containing only Bezier curves segments.

Syntax

C#
Visual Basic (Declaration)

Multipart Smooth( 
   Multipart multipart,
   double maxDeviation
)

Function Smooth( _
   ByVal multipart As Multipart, _
   ByVal maxDeviation As Double _
) As Multipart

Parameters

multipart: The multipart to convert.
maxDeviation: The maximum allowed deviation. If maxDeviation is > 0, the multipart is generalized first by the Douglas-Peucker method using the maxDeviation value. Bezier curves are then created for each of the remaining segments. Otherwise, every segment of the input multipart becomes a separate Bezier curve.

Return Value

A multipart containing only Bezier curve segments.

Exceptions

Exception	Description
System.ArgumentNullException	The input multipart is null.

Remarks

The created Bezier curve multipart is an approximation of the original multipart. At each vertex, the adjoining Bezier curves have complementary tangents which create a continuous (smooth) transition between segments.

Example

Smooth a multipart

// smooth with a maxDeviation of 0
Polyline smoothPolyline = GeometryEngine.Instance.Smooth(polyline, 0) as Polyline;

// smooth with a maxDeviation of 0.5
smoothPolyline = GeometryEngine.Instance.Smooth(polyline, 0.5) as Polyline;

// smooth a polygon with a maxDeviation of 0
Polygon smoothPolygon = GeometryEngine.Instance.Smooth(polygon, 0) as Polygon;

// maxDeviation < 0 behaves as if maxDeviation = 0
smoothPolygon = GeometryEngine.Instance.Smooth(polygon, -1) as Polygon;

// NaN maxDeviation behaves as if maxDeviation = 0
smoothPolygon = GeometryEngine.Instance.Smooth(polygon, double.NaN) as Polygon;

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.5 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

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