DiagramNode Object
Multiple objects
Represents a single diagram node within a diagram. The DiagramNode object is a member of the DiagramNodes collection.
Using the DiagramNode object
Use the DiagramNode property of the Shape or ShapeRange object to return a DiagramNode object. Use the AddNode method to add a node to a diagram. This example assumes the third shape in the document is a diagram and adds a node to it.
Sub AddDiagramNode()
ActiveDocument.Shapes(3).DiagramNode.Children.AddNode
End Sub
Use the Delete method to remove a node from a diagram. This example assumes the second shape in the document is a diagram and removes the first node from it.
Sub DeleteDiagramNode()
ActiveDocument.Shapes(2).DiagramNode.Children(1).Delete
End Sub