ArcGIS Pro 2.8 API Reference Guide
GeometryDimension Enumeration

ArcGIS.Core.Geometry Namespace : GeometryDimension Enumeration
Describes the dimensionality of the geometry object. Use with GeometryEngine.Intersection .
Syntax
Members
MemberDescription
esriGeometry0DimensionZero dimension (point or multipoint).
esriGeometry1DimensionOne dimension (polyline).
esriGeometry2DimensionTwo dimension (polygon or envelope).
esriGeometry3DimensionThree dimension (multipatch).
esriGeometryNoDimensionDimension is unknown.
Remarks
A MapPoint and a Multipoint are zero dimensional. A Polyline is one dimensional. A Polygon, and an Envelope are two dimensional. A Multipatch is three dimensional. Note if Geometry.HasZ = true, meaning that it is z-aware, the dimensionality of the geometry is not affected.
Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         ArcGIS.Core.Geometry.GeometryDimension

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

ArcGIS.Core.Geometry Namespace