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FlowchartLayout and crossed-over anchored links (Read 3627 times)

mihai Junior Member Offline Posts: 86 Joined: Jul 29^th, 2009	FlowchartLayout and crossed-over anchored links Jul 31^st, 2014 at 1:54pm	Print Post
	Hi, I have a graph with three ShapeNodes (OR gates, with two inputs and one output), say A, B & C, each with defined anchor points. A and B are connected to C through links on different anchor points of C. When I run the FlowchartLayout algorithm, A & B get arranged in a column, and C in another, and that is good for my purposes. However, the links are crossed over. Is there something that I can do to avoid this? One solution would be for the algorithm to swap the locations of A & B, to reduce crossings. Thanks in advance, -Mihai PS: I never get notified by email when there are replies to my topics, even though I have checked the corresponding topic option. Thoughts?
	« Last Edit: Jul 31^st, 2014 at 3:53pm by mihai »

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: FlowchartLayout and crossed-over achnored links Reply #1 - Jul 31^st, 2014 at 3:20pm	Print Post
	Hi, Could you attach the diagram xml file? Check if your email software's spam filter isn't blocking the messages. Stoyan


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mihai Junior Member Offline Posts: 86 Joined: Jul 29^th, 2009	Re: FlowchartLayout and crossed-over achnored links Reply #2 - Jul 31^st, 2014 at 3:51pm	Print Post
	Hi Stoyan, I'll have to first simplify the diagram to be allowed to share it. No thoughts otherwise? On the emails, it's the span filter... it might be something on the server side (sender). Thanks, -Mihai


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: FlowchartLayout and crossed-over anchored links Reply #3 - Aug 1^st, 2014 at 6:06am	Print Post
	Hi Mihai, I think branches under a node in FlowchartLayout are arranged in the order of the node's OutgoingLinks collection. The actual location of their anchor points is not considered at this time even if you run with Anchoring.Keep option. So if the problem is that branches are placed under incorrect anchor points, you might try sorting the links for all nodes. E.g. if OriginAnchor values correspond to left-to-right positions, you could sort like this: Code node.OutgoingLinks.Sort((l1, l2) => l1.OriginAnchor.CompareTo(l2.OriginAnchor)); I hope that helps, Stoyan


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mihai Junior Member Offline Posts: 86 Joined: Jul 29^th, 2009	Re: FlowchartLayout and crossed-over anchored links Reply #4 - Aug 1^st, 2014 at 6:13am	Print Post
	Hi Stoyan, Understood on the implementation of FlowchartLayout. I do use the Keep option, because I need the links to stay in their original anchor points. So I can't re-order the links like that, unfortunately. Is there any hope, given this? Thanks! -Mihai


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: FlowchartLayout and crossed-over anchored links Reply #5 - Aug 1^st, 2014 at 6:22am	Print Post
	Hi Mihai, The Sort code won't move links away from their anchor points, but will only change their position in the collection to correspond to anchor points' order. That should lead to FlowchartLayout placing the branches relative to anchor positions. I hope that helps, Stoyan


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mihai Junior Member Offline Posts: 86 Joined: Jul 29^th, 2009	Re: FlowchartLayout and crossed-over anchored links Reply #6 - Aug 1^st, 2014 at 7:09am	Print Post
	Yes, but am I really sorting, since in my example I only have one item in each A & B's OutgoingLinks?


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: FlowchartLayout and crossed-over anchored links Reply #7 - Aug 1^st, 2014 at 7:28am	Print Post
	No, it would only help if the two links were pointing from C to A/B. Perhaps you could run LayeredLayout and then swap positions of nodes in layers according to LayeredLayout.Statistics if you detect their order does not match anchor points. We'll see if we can add built-in support for next release.


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mihai Junior Member Offline Posts: 86 Joined: Jul 29^th, 2009	Re: FlowchartLayout and crossed-over anchored links Reply #8 - Aug 1^st, 2014 at 10:00am	Print Post
	Quote: Perhaps you could run LayeredLayout and then swap positions of nodes in layers according to LayeredLayout.Statistics if you detect their order does not match anchor points. Yes, I will try that. Quote: We'll see if we can add built-in support for next release. That would be great! And indeed, the node-layout-algorithms should not ignore the anchor points.


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