ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Geometry Namespace / SpatialReference Class / PositiveDirection Property
Version

PositiveDirection Property (SpatialReference)
Gets the positive direction of the vertical coordinate system.
Syntax
public PositiveDirection PositiveDirection {get;}
Remarks
The positive direction determines if a positive Z-value represents height (up) or depth (down). If the spatial reference doesn't have a vertical coordinate system, then PositiveDirection.None is returned.

In a WKT string, the positive direction looks something like "PARAMETER["Direction",1.0]" where 1 is up and -1 is down.

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.2 or higher.
See Also