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Normal Topic Circular layout (Read 2505 times)
BidMaestro
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Circular layout
Feb 17th, 2009 at 2:42am
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What a great new function: for those that have not used it, try the following code as part of your layout before you arrange the diagram

LayoutCircular.Radius = Diagram1.Nodes.Count * 8
LayoutCircular.SiftingRounds = 3

I found these values useful no matter how many nodes you have on the diagram. The Radius multiplier of 8 depends on the size of the shapes you are using; in my case, they are 25 * 25
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Stoyo
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Re: Circular layout
Reply #1 - Feb 17th, 2009 at 8:33am
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thanks for the hint - that 8 is close to 25 / PI, so people using a different node size could set Radius = Diagram.Nodes.Count * nodeSize / Math.PI, to put it on scientific basis 8)
« Last Edit: Feb 17th, 2009 at 1:05pm by Stoyo »  
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BidMaestro
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Re: Circular layout
Reply #2 - Mar 3rd, 2009 at 6:47am
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Stoyo

This question may be more of a suggested featured. When I create a circular layout how can I determine the coordinates where the central point of the circle is?

The reason being, is that I would like to produce two circular layouts, one within the other. This would also require passing the coordinates indicating the centre point for the circle

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Doug  Smiley
  
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Stoyo
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Re: Circular layout
Reply #3 - Mar 3rd, 2009 at 9:29am
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Hi Doug,

Applying CircularLayout on a single sub-graph should set the circle center at (diagram.Bounds.Left + cl.Radius + cl.Margins.Width, diagram.Bounds.Top + cl.Radius + cl.Margins.Height). I suppose you could offset the second sub-graph by increasing the CircularLayout.Margins.

I hope that helps,
Stoyan
  
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BidMaestro
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Re: Circular layout
Reply #4 - Mar 3rd, 2009 at 12:15pm
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Stoyan

Thanks for the hint; I will have a play. What I was trying to achieve is a diagram (attached) and created manually (very badly). On the inner circle I have a group of companies in the outer circle I have all the Directors of those companies.

I am not sure if the file will attach to this forum reply; if not I will email it to you.[img][/img]

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Doug
  
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Stoyo
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Re: Circular layout
Reply #5 - Mar 3rd, 2009 at 2:42pm
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Actually that looks more like a combination of CircularLayout and radial TreeLayout. You might try applying CircularLayout on the inner circle, attach the nodes from it to a single root node, and then running TreeLayout with KeepGroupLayout enabled. Let me know if that doesn't work - we could create some compound layout class based on the circular and raidal ones.

Stoyan
  
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