Dear Develop Team:

  I suggest that ...
 
  ContainerNode containerNode = diagram.Factory.CreateContainerNode(50,50,50,50);
  ShapeNode node1 = diagram.Factory.CreateShapeNode(25, 25, 25, 25);
  ShapeNode node2 = diagram.Factory.CreateShapeNode(25, 25, 25, 25);
DiagramLink link = diagram.Factory.CreateDiagramLink(node1, node2);

containerNode.add(node1);
containerNode.Add(node2);


TreeLayout layout = new TreeLayout();
layout.Arrange(containNode);

or

containNode.UpdateBounds(); //enhance this logic


Because the developer only know the width and the height of the shape node, they don't know the top and the left
of the shape node which in the container node.
Fluber

Yes. 
Initialize the container node content by programming. Like the above example, programmers only know how many child nodes in the container node and each node size.
After initializing the content, the child nodes in the container node will look like overlap.

Fluber

Thankx.

Dear Stoyo:

  I change keepRootPosition to true. It seems good enough.


Fluber