Q:
Is there a way to get the component occurrence that a balloon is pointing to?
A:
The “LeaderNode.AttachedEntity” tells the geometry intent (attachment) for the node, from which we could know the model geometry. The code below supposes that the drawing view is created by an assembly and a balloon (one leader node) attached to one component of the assembly.
Another way is BalloonValueSet.ReferencedRow. A sample [GetComponentReferencedByBalloon] is available in the Inventor API help files.
' Assumess the drawing view is created from a assembly.
' Select a balloon manually before running this procedure
Private Sub test(ByVal app As Inventor.Application)
Dim doc As DrawingDocument = app.ActiveDocument
Dim balloon As Balloon = doc.SelectSet(1)
Dim leader As Leader = balloon.Leader
'assuming the leader is a single line segment
Dim leaderNode As LeaderNode = leader.AllNodes(2)
Dim intent As GeometryIntent = leaderNode.AttachedEntity
Dim curve As DrawingCurve = intent.Geometry
Dim edgePx As EdgeProxy = curve.ModelGeometry
Dim occurrence As ComponentOccurrence = edgePx.ContainingOccurrence
Debug.Print(vbCrLf + "Occurrence Name: " + occurrence.Name)
End Sub
