ArcGIS Runtime SDK for .NET (UWP and Xamarin.Forms)

## GeometryEngineOffset Method |

Returns offset version of the input geometry.
The offset operation creates a geometry that is a constant distance from an input polyline
or polygon. It is similar to buffering, but produces a one sided result. If offset distance
> 0, then the offset geometry is constructed to the right of the oriented input geometry,
otherwise it is constructed to the left. For a simple polygon, the orientation of outer rings
is clockwise and for inner rings it is counter clockwise. So the "right side" of a simple
polygon is always its inside. The bevelRatio is multiplied by the offset distance and the
result determines how far a mitered offset intersection can be from the input curve before
it is beveled.

Syntax

public static Geometry Offset( Geometry geometry, double distance, OffsetType offsetType, double bevelRatio, double flattenError )

- geometry
- Type: Esri.ArcGISRuntime.GeometryGeometry

The geometry to calculate offset for. MapPoint and Multipoint are not supported. - distance
- Type: SystemDouble

The offset distance for the geometry. - offsetType
- Type: Esri.ArcGISRuntime.GeometryOffsetType

The offset type of the offset geometry. - bevelRatio
- Type: SystemDouble

The ratio used to produce a bevel join instead of a miter join (used only when joins is miter) - flattenError
- Type: SystemDouble

The maximum distance of the resulting segments compared to the true circular arc (used only when joins is round). If flattenError is 0, tolerance value is used. Also, the algorithm never produces more than around 180 vertices for each round join.

Returns the result of the offset operation.

See Also