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Routing causes more than necessary lines for short distances (Read 3842 times)

Kim Lill�s YaBB Newbies Offline I Love MindFusion! Posts: 26 Joined: Aug 18^th, 2016	Routing causes more than necessary lines for short distances Nov 9^th, 2016 at 11:39am	Print Post
	Hi, Even with high values for the RoutingOptions.TurnCost, it creates an unnecessary turn for the simple example I attached. If I move the left hand node one step further away, the routing is "correct" in the sense that it avoids the unnecessary extra turn. Any idea what might be causing this behaviour for short distance links routings? Note: The little black rectangle in the middle of the picture is a node, and there is a total of two links in the picture. It is the left hand link routing which is "wrong".

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Slavcho YaBB Moderator Online tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Routing causes more than necessary lines for short distances Reply #1 - Nov 10^th, 2016 at 10:44am	Print Post
	Hi, End points are selected before the actual evaluation of costs. I think it decides to move the link to the bottom of small rectangle because it's more in vertical direction than horizontal one in first image (dx < dy). If link segments adjacent to the small node should be always horizontal, try assigning anchor points to its left and right sides. Regards, Slavcho


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Kim Lill�s YaBB Newbies Offline I Love MindFusion! Posts: 26 Joined: Aug 18^th, 2016	Re: Routing causes more than necessary lines for short distances Reply #2 - Nov 10^th, 2016 at 11:05am	Print Post
	Hi, Thanks for the answer. No, they do not have to be horizontal. The main thing is that it minimizes the amount of lines to reach its target. I guess I could programmatically evaluate different anchor points and choose the one with the lowest routing cost. Is the routing cost publicly available? //Kim


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Slavcho YaBB Moderator Online tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Routing causes more than necessary lines for short distances Reply #3 - Nov 10^th, 2016 at 11:57am	Print Post
	Hi, What are you using that node for? If it's just to force the link path through a specific location of the diagram, we could instead add some API to the LinkRouter classes for that. Regards, Slavcho


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Kim Lill�s YaBB Newbies Offline I Love MindFusion! Posts: 26 Joined: Aug 18^th, 2016	Re: Routing causes more than necessary lines for short distances Reply #4 - Nov 10^th, 2016 at 12:23pm	Print Post
	Hallo, Right now it is a visualization of our "Connectivity Node", which is primarily used to connect 2 - n nodes together. You can see an example in the picture where the connectivity node is used to connect 4 other nodes together. I am free to manually move the connectivity node after it has been initially created.

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Slavcho YaBB Moderator Online tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Routing causes more than necessary lines for short distances Reply #5 - Nov 11^th, 2016 at 12:14pm	Print Post
	Our developer will add some option to evaluate different end points for better costs. We should have an update next week.


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Slavcho YaBB Moderator Online tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Routing causes more than necessary lines for short distances Reply #6 - Nov 16^th, 2016 at 10:55am	Print Post
	Hi, Try the RoutingOptions.EvaluateFarPoints option from this build - https://mindfusion.eu/_beta/wpfdiag342.zip It makes GridRouter evaluate points from all sides of link's nodes and select the route with lowest cost. Routing becomes much slower though; we'll try to optimize for official release. Regards, Slavcho


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