ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMMarkerPlacementAlongLineVariableSize Class / PlacementTemplate Property

PlacementTemplate Property (CIMMarkerPlacementAlongLineVariableSize)
Gets or sets the numeric pattern that defines the sequence of placed markers and the length of space between them.
Syntax
public double[] PlacementTemplate {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.8 or higher.
See Also