ArcObjects Library Reference (Geometry)

ITransform2D.Rotate Method

Rotates about the specified origin point. The angle is in radians. The origin can be in a different spatial reference than the geometry being rotated.

[Visual Basic .NET]
Public Sub Rotate ( _
    ByVal Origin As IPoint, _
    ByVal rotationAngle As Double _
)

[C#]
public void Rotate (
    IPoint Origin,
    double rotationAngle
);

[C++]
HRESULT Rotate(
  IPoint* Origin,
  double rotationAngle
);

[C++]

Parameters

Origin

Origin is a parameter of type IPoint

rotationAngle rotationAngle is a parameter of type double

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Description

Rotate performs an angular transform (rotation) on the Geometry. The Origin is the only point in the transformation guaranteed to remain in the same location after the transformation is performed. Regardless of the Origin, the transformed Geometry is the same, except for a positional offset. The RotationAngle is measured in radians.

Remarks

An Envelope cannot be Rotated.

Transform2D Rotate Example

.NET Samples

Move a graphic along a path in ArcMap (Code Files: MapGraphicKeyframe) | Create custom move, rotate, and scale GeometricEffects within a single project (Code Files: clsGE_Transform_Rotate)

.NET Related Topics