Hi,

I've been trying to get the behaviour shown in the FCNet demo "Layered Layout" whereby if two nodes are connected by more than one arrow the arrows do not overlap.  Despite scanning the code in the demo source I can't find what enables this behaviour.  Can someone tell me what it is I need to do to get this behaviour ?

I am initialising the flowchart object and LayeredLayout objects like this...

           fc.AllowInplaceEdit = false;
           fc.AllowLinksRepeat = false;
           fc.AllowUnconnectedArrows = false;

           // The following was taken from the FC Demo...
           fc.AllowLinksRepeat = true;
           fc.ArrowCascadeOrientation = MindFusion.Diagramming.WinForms.Orientation.Horizontal;
           fc.ArrowCrossings = ArrowCrossings.BreakOff;
           fc.BkgrImagePos = ImageAlign.Center;
           fc.CellFrameStyle = CellFrameStyle.None;
           fc.CrossingRadius = 2;
           fc.HostedCtrlMouseAction = HostMouseAction.PassToControl;
           fc.RoundedArrows = true;
           fc.RoundedArrowsRadius = 10;
           fc.ShadowsStyle = ShadowsStyle.None;

           m_LayeredLayout.LayerDistance = 10;
           m_LayeredLayout.NodeDistance = 20;
           m_LayeredLayout.XGap = 5;
           m_LayeredLayout.YGap = 5;
           m_LayeredLayout.SplitLayers = true;

Thanks in advance,


Ian.

Hi Stoyan,

Thanks for the pointer.  I can get this to work no problem if the arrows are added by a user, however I need to get this functionality to work programatically. 

The problem I have is that I need to use an auto-layout control because the diagram is being generated from stored data, not created by a user.  From what I can tell the arrows are set by the Arrange() method of any auto-arrange control I might use.  The only method I can think of to apply to the solution you referred me to is to do this:

1. Call the auto-layout Arrange() method to position the nodes.
2. Scan through the node collection to create a list of uniquely connected node pairs.
3. Scan through the list of uniquely connected node pairs and then...
   (a) Disconnect all the arrows that connect the two nodes.
   (b) Reconnected the arrows using the algorithm you referred me to originally.


This seems like a long-winded way of going about things, so I wondered if there was a better way of doing this ?

Thanks in advance,


Ian.