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superNova
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node layout
Aug 6th, 2011 at 10:47am
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how to add multiples shapenodes in each other as a parent child relationship. if parent node has 3 childs so all three nodes must be attach on parentnode (shape node obj ) . how to set its layout ,provide good suggestion.
  
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Meppy
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Re: node layout
Reply #1 - Aug 7th, 2011 at 8:10am
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I'm not completely sure what you are asking for. If you want to programmatically connect the nodes, you can use the createDiagramLink method of the diagram's factory. Let's say you have existing nodes node1, node2 and node3 and you want to link them to an existing parent node - parent. Then use the following code:

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diagram.getFactory().createDiagramLink(parent, node1);
diagram.getFactory().createDiagramLink(parent, node2);
diagram.getFactory().createDiagramLink(parent, node3);

Regards,
Meppy
  
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superNova
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node hierarchy
Reply #2 - Aug 8th, 2011 at 8:12am
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Actully I have  parent & childs nodes . I m aware about link node but i do not want to link them instead link i want to attach child node to its particular parent.I mean I want to draw a blockHierarchy. I m unable to fix a runtime dimension. for ex. If i have 3 initial parent p1 p2 p3, and p1 has 3 child p2 has 2 child & p3 has 1 child so using attach to method i want to attch p1's child on first block and 2 childs on p2 and so on. I hope u would have understand my probem now .
  
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Meppy
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Re: node layout
Reply #3 - Aug 8th, 2011 at 10:19am
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You can attach nodes to one another using the DiagramNode.attachTo method. In the context of the above example, to attach the three nodes to the parent, use the following code:

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node1.attachTo(parent, AttachToNode.BottomLeft);
node2.attachTo(parent, AttachToNode.BottomLeft);
node3.attachTo(parent, AttachToNode.BottomLeft);

Moving the parent node now will automatically adjust the attached nodes so that their position relative to the parent node is unchanged.

Does this answer your question?

Regards,
Meppy
  
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superNova
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block diagram
Reply #4 - Aug 9th, 2011 at 10:12am
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Still i m looking for my solution.I know about attchto method , I want to build a blockHierarchy at three level. grandfather node (gn), parent node(pn), child node(cn).  if there are 3 gn each of has 2 pn, & each pn has 3 cn. like this
              gn1 -                    gn 2                   gn 3
              /    \                      /    \                    /    \
          pn 1   pn2             pn1   pn2           pn1   pn2
       /  |  \     /  |  \           /  |  \                  / | \      /  \
     cn cn cn  cn cn cn     cn cn cn            cn cn cn cn cn

now i hope u would understand that what i want . Each diagram must contain two parent and each parent must have three child.

all nodes are coming but i m unable to fix its layout.
so pls provide solution.
  
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Meppy
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Re: node layout
Reply #5 - Aug 9th, 2011 at 11:02am
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If you want to automatically arrange your diagram, you can use the built-in TreeLayout algorithm - it is perfect for arranging hierarchical structures. To apply the tree layout to a diagram, do the following:

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TreeLayout layout = new TreeLayout();
layout.setType(TreeLayoutType.Centered);
layout.arrange(diagram);

I hope this helps.

Regards,
Meppy
  
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