ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Geometry Namespace / EllipticArcBuilderEx Class / RotationAngle Property
Example Version

RotationAngle Property (EllipticArcBuilderEx)
Gets or sets the rotation angle of the major axis in radians.
Syntax
public double RotationAngle {get; set;}

Property Value

A double representing the rotation angle.
Exceptions
ExceptionDescription
The RotationAngle is NaN.
Remarks
The rotation angle specifies the angle relative to the X-axis by which the elliptic arc is rotated. Changing the rotation angle may change the start and end points.
Example
Elliptic Arc Builder Properties
// retrieve the curve's properties
EllipticArcBuilderEx builder = new EllipticArcBuilderEx(arcSegment);
MapPoint startPt = builder.StartPoint;
MapPoint endPt = builder.EndPoint;
Coordinate2D centerPt = builder.CenterPoint;
bool isCircular = builder.IsCircular;
bool isMinor = builder.IsMinor;
double startAngle = builder.StartAngle;
double endAngle = builder.EndAngle;
double centralAngle = builder.CentralAngle;
double rotationAngle = builder.RotationAngle;
ArcOrientation orientation = builder.Orientation;
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also