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Normal Topic SwapPairsIterations (Read 1765 times)
chrise
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SwapPairsIterations
Dec 8th, 2006 at 3:37pm
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I am trying to increase the number of SwapPairsIterations however it remains at 5.
  
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Stoyo
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Re: SwapPairsIterations
Reply #1 - Dec 8th, 2006 at 5:37pm
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5 is the max value allowed. That number of iterations are executed each time the algorithm moves nodes up or down the layers, so it is effectively a multiplier applied to the number of nodes and layers in the graph. The layout usually doesn't get any better with more iterations, but it gets much slower. We have added this after a customer request to let them increase the layout speed with a very large graph by decreasing the iterations.

Stoyan
  
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chrise
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Re: SwapPairsIterations
Reply #2 - Dec 11th, 2006 at 8:27am
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I a graph that is fairly simple and there is a cross over that can be manually corrected. I was hoping that increasing the number of iterations would cure the problem.   I have also noticed that the layout depends on the order that the items have been added to the chart rather than say the Z order. Am I correct in my understanding.
  
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Stoyo
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Re: SwapPairsIterations
Reply #3 - Dec 11th, 2006 at 1:11pm
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The LayeredLayout evaluates several other criteria, such as keeping connected nodes close together and links crossing fewer layers.  The layout might leave some arrow crossovers if the graph configuration would worsen according to the other criteria. Please email me the diagram file and our developer will trace through the layout code to see why the cross over remains.

Stoyan
  
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