ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMSlicePlaneEADefinition Class / Heading Property

Heading Property (CIMSlicePlaneEADefinition)
Gets or sets the heading in degrees from North. 0 is North, 90 is West, 180 is South, -90 is East, etc.
Syntax
public double Heading {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.3 or higher.
See Also