Hello, I got several questions about routing links - I have about 10 square nodes, each has top input and bottom output anchor and there are links between them.
I need layout with orthogonal connections and links not crossing other nodes and also as few crossing among links as possible.
I tried

diagram.RoutingOptions.CrossingCost = 50;
diagram.RoutingOptions.NodeVicinityCost = 10;
diagram.RoutingOptions.TurnCost = 0;
diagram.LinkStyle = LinkStyle.Cascading;
diagram.RouteLinks = true;
and for links:
AutoRoute = true, Style = LinkStyle.Cascading
I tried also LayeredLayout, FlowchartLayout, OrthogonalLayout, but I wasn't able to make these rules happen - there are still crossing between links and links are crossing nodes. Any idea?

Edit: Solved problem with key down routing - I had focus on another control... stupid mistake

The third question is, is it possible ot give names to used anchors in Node and show them in diagram? User should know which anchor has which name in case of multiple output/input anchors.
thanks

Thanks for the hints. I'm currently using TableNode for showing the anchors - two columns, input connectors in the left column, output in the right column. I don't know, how to do this: I need to show input only anchor for each cell in the left column and output only anchors for each cell in the right column.
There is AnchorPattern and RowAnchorPattern property, but I am not sure how to use them, especially how to set different anchors for left and right cells.
Also a question, how to align the text in the right column to the right? I've tried node[1,0].HorizontalAlignment and HorizontalContentAlignment, but none worked.

And another question, when using LayeredLayout, how to keep the position of all nodes within the diagram area? I need the layout to fit all nodes into the 800x600 area. The Layered layout is moving the nodes into positions out of the diagram visible area. The Layout.Margin switch does not work at all, also prohibiting changes in diagram size does not work.
Thanks for help

I've already calculated manually the anchor patter for table nodes, but I'' try your solution
Too bad the cell can't be arranged, but that is only a small drawback.

But probably the last question today - how to change size of anchors or how to make them solid, not just outlines? They are hard to hit and not so clear to see imho.

There is no DiagramNode.CreateAnchorPointVisual method as far as I can see . Also another issue - I got table nodes with two columns, see the picture:



There might be different number of items in left/right column. The unoccupied cells should not be allowed as link targets - how to manage that? Currently when I create link it's possible to snap the end to the empty cells - which is wrong. Also I have found, that upon creating new link in LinkCreated handler the e.Link.DestinationAnchor is always -1 - only the destination index is set. Is this by design or is it a bug?

Update, I tried to add invisible anchor point to empty cell with "allowincoming = false", but new links are still snapped to each table cell. Also if I set RowAnchorPattern to empty pattern, the starting point of the new link is guided from the top left corner of the diagram. This is surely some bug.

DiagramNode.CreateAnchorPointVisual

There's no such method.

MindFusion.Diagramming.Silverlight 1.7.0.30389
MindFusion.Graphs.Silverlight 1.1.0.30388

It works, but I have experienced this error when using layered layout - only with 2 MyTableNodes:
Update - it throws exception in 1.7 stable too:
I've created 2 table nodes, both with 2x2 table. then added two links from 1st node to second and 2links from 2nd to 1st node... clicked to layout=>

LayeredLayout ll = new LayeredLayout
{
Orientation = Orientation.Horizontal,
LinkType = LayeredLayoutLinkType.Straight,
IgnoreNodeSize = false,
Anchoring = Anchoring.Keep,
LayerDistance = 15,
NodeDistance = 15,
EnforceLinkFlow = true,
StraightenLongLinks = true,
};

public class MyTableNode : TableNode
{
protected override System.Windows.Shapes.Path CreateAnchorPointVisual(AnchorPoint point)
{
Path x = base.CreateAnchorPointVisual(point);
x.Fill = x.Stroke;
return x;
}

public MyTableNode(Diagram diagram) : base(diagram) {}
}


at System.ThrowHelper.ThrowKeyNotFoundException()
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at MindFusion.Layout.x348b8deb5aa85ce7.x210b394f42751fdc()
at MindFusion.Layout.x348b8deb5aa85ce7.xb7874248b0c0bc2d(x5e63d74830b5db57 x8e7bfcccb55aaf8f, xae117168b0e0c39f x8d3f74e5f925679c, x78e3ce9dc43283f0 x22bfd1664c623dc4)
at MindFusion.Diagramming.Silverlight.Layout.LayeredLayout.Arrange(Diagram diagram, DiagramItemCollection items)
at MindFusion.Diagramming.Silverlight.Layout.Layout.Arrange(Diagram diagram)

I've also found that even though I have created 4 links between these nodes, there is no link in Outgoing and incoming links in both nodes. Where's the problem?

I've narrowed the problem to this setting:
LayeredLayout ll = new LayeredLayout
{
EnforceLinkFlow = true,
StraightenLongLinks = true,
};
using this on two table nodes 2x2cells, both with 2 links to the other nodes crashes the ll.Arrange.

Also I'm facing another problem... link.Locked is good for preventing changes on link, but I want links, with fixed endpoints, but selectable by clicking - user should be able to select the link and delete it ,but not change the endpoint positions. Is there a simple solution, or should I handle link modifying events and cancel them manually?