Hi,
I'm using FlowLayout and the diagram consists of many disjoint pieces (many root nodes in other words).
For some reason, the disjoint graphs are positioned rather far one from another. I tried to set the VerticalGroupOffset but it doesn't change.
Here are my layout definitions:

FlowLayout flowLayout = new FlowLayout();
flowLayout.AutoRoute = true;

[b]flowLayout.VerticalGroupOffset = 50;[/b]
flowLayout.NodeDistance = 60;

flowLayout.Margins = new Size(10, 10);
flowLayout.ChangeLaneDimensions = true;
flowLayout.RecreateGraph = true;
flowLayout.RandomSeed = new Random().Next();
flowLayout.KeepGroupLayout = true;
flowLayout.LaneDistance = 50;
flowLayout.LaneType = LaneType.LaneGrid;
// define direction rules for the connector types
FlowLayoutRules rules = flowLayout.LayoutRules;
rules.PreferredRules = PreferredRules.ConnectorRules;
if (Orientation == DiagramOrientation.LeftToRight)
{
rules.ConnectorRules.RightOriented = CONTROL_FLOW_NAME;
rules.ConnectorRules.DownOriented = BACK_FLOW_NAME;

}
else
{
rules.ConnectorRules.DownOriented = CONTROL_FLOW_NAME;
rules.ConnectorRules.RightOriented = BACK_FLOW_NAME;

}
// miscellaneous rules
rules.NodeRules.GroupStartNodes = START_NAME;
rules.NodeRules.GroupEndNodes = END_NAME;
rules.NodeRules.MainConnectorId = CONTROL_FLOW_NAME;
rules.NodeRules.MainConnectorOrientation = SimpleOrientation.LeftToRight;
rules.ConnectorRules.HorizontalBendOrientation = false;

It happens for all cases.

Thanks.

We are in the process of buying the component so it's crucial for us to understand if it answers our needs. Please address my 2 questions as appears in this thread.

Thanks.

I've found solution to at least one problem I had:
Both ConnectorRules.RightOriented,ConnectorRules.DownOriented and NodeRules.GroupStartNodes and NodeRules.GroupEndNodes are object properties. I provided string keys while array was expected.
GUYS, YOU SHOULD THROW EXCEPTION IN SUCH CASE!!! The values I gave were swallowed without any notification and the properties were left NULL. I think you should review your designs.
It behaves much better now.

I still need an answer to my question from 05.05

Thanks.

Hi,
The layout definitions appear in this thread.
I will post it again (fixed):
FlowLayout flowLayout = new FlowLayout();
           flowLayout.AutoRoute = true;
           flowLayout.VerticalGroupOffset = 20;
           flowLayout.NodeDistance = 60;
           flowLayout.Margins = new Size(10, 10);
           flowLayout.ChangeLaneDimensions = true;
           flowLayout.RecreateGraph = true;
           flowLayout.RandomSeed = new Random().Next();
           flowLayout.KeepGroupLayout = true;
           flowLayout.LaneDistance = 10;
           flowLayout.MinLaneHight = 100;
         
           // define direction rules for the connector types
           FlowLayoutRules rules = flowLayout.LayoutRules;
           rules.PreferredRules = PreferredRules.ConnectorRules;
           if (Orientation == DiagramOrientation.LeftToRight)
           {
               rules.ConnectorRules.RightOriented = new string[] {CONTROL_FLOW_NAME};
               rules.ConnectorRules.DownOriented = new string[] {BACK_FLOW_NAME};
              
               rules.NodeRules.MainConnectorOrientation = SimpleOrientation.LeftToRight;

           }
           else
           {
               rules.ConnectorRules.DownOriented = new string[] {CONTROL_FLOW_NAME};
               rules.ConnectorRules.RightOriented = new string[] {BACK_FLOW_NAME};
               rules.NodeRules.MainConnectorOrientation = SimpleOrientation.TopToBottom;

            
           }
           // miscellaneous rules
           rules.NodeRules.GroupStartNodes = new string[] {START_NAME};
           rules.NodeRules.GroupEndNodes = new string[] {END_NAME};
           rules.NodeRules.MainConnectorId = CONTROL_FLOW_NAME;
           rules.NodeRules.VerticalSubgroupsAlignment = true;

           rules.ConnectorRules.HorizontalBendOrientation = false;

I've sent you the details by email.
I did not define anything in ConnectorRules.LeftOriented, that is why I posted the code again. What I'm trying to say is that the behavior is different from what I expect. I don't think I'm doing something special and don't need additional rule types.

Apparently in your case MinLaneHight overrides VerticalGroupOffset, and the subgraphs are placed at 100 units from each other rather than 20.

I hope that helps,
Stoyan

It is a restriction of the connector-rules mode that groups have only one start node. If otherwise the result is close to what you need, we can add support for more start nodes in the next few days.

You might also check the new FlowchartLayout class we are developing:
https://mindfusion.eu/_beta/wpfdiag_flowchartlt.zip

It supports constructs such as decisions and loops in code, and the result looks like this:



FlowchartLayout has some support for more than one start nodes. However currently it creates only vertical layouts. We'll add an Orientation property for the final release.