ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMHexMosaicEffect Class / Size Property

Size Property (CIMHexMosaicEffect)
Gets or sets the size of the hexagons measured in points.
Syntax
public double Size {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.9 or higher.
See Also