If search is using two r-trees, IdB is element b in the search.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: Rhino 6.0

C#

public int IdB { get; }

VB

Public ReadOnly Property IdB As Integer
	Get

Type: Int32

Supported in: 6.0.16224.21491, 5D58w

RTreeEventArgs Class
Rhino.Geometry Namespace