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Normal Topic Relayout after node delete (Read 947 times)
cbucher
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Relayout after node delete
Sep 9th, 2010 at 5:14pm
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I have an application that starts with the many nodes (100-500) being layout (anneal). The user can click nodes to hide them (visible = false) with the corresponding links. This creates large open areas in the layout. Is there a way to relayout the view to condense it with only the visible nodes and links?
  
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Stoyo
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Re: Relayout after node delete
Reply #1 - Sep 10th, 2010 at 9:17am
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Try running Arrange again as below. You might play with InitialTemperature, Stages and IterationsPerStage parameters to find better balance between filling the empty space and preserving the existing arrangement, so that user's mental image of the diagram is preserved.

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diagram.NodeDoubleClicked += (s, e) =>
{
	e.Node.Visible = false;
	foreach (DiagramLink link in e.Node.GetAllLinks())
		link.Visible = false;

	var layout = AnnealLayout();
	layout.Randomize = false;
	layout.InitialTemperature /= 2;
	layout.Stages = 1;
	layout.Arrange(diagram);
	diagram.ResizeToFitItems(0);
};


I hope that helps,
Stoyan
  
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