Code

private void CreateNewFlowChart()
        {
            fc = new FlowChart();
            fc.AutoSizeDoc = AutoSize.RightAndDown;
            //fc.BackBrush =
            fc.InplaceEditFont = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            fc.Name = "SIGA ER-Diagram";
            fc.BackColor = System.Drawing.Color.White;
            fc.AntiAlias = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            fc.ArrowCascadeOrientation = MindFusion.Diagramming.WinForms.Orientation.Auto;

            fc.ShowAnchors = ShowAnchors.Always;
        }
 

Code

private void AddConnection(Box box1, Box box2)
        {
            Arrow link = fc.CreateArrow(box1, box2);
            link.Style = ArrowStyle.Cascading;
            link.ArrowHead = ArrowHead.Reversed;
            link.ShadowColor = System.Drawing.Color.White;
            link.AutoRoute = true;
            link.DrawCrossings = true; //org false

            link.Selected = false;
            link.Dynamic = true;
        }
 

Code

private void RouteConnections()
        {
            fc.RoutingOptions.TriggerRerouting = RerouteArrows.WhenIntersectNode;
            fc.RoutingOptions.CrossingCost = 100; //org 40
            fc.RoutingOptions.Anchoring = Anchoring.Reassign;
            fc.RoutingOptions.EndOrientation = MindFusion.Diagramming.WinForms.Orientation.Auto;
            fc.RoutingOptions.LengthCost = 1;
            fc.RoutingOptions.TurnCost = 20; //org 50

            fc.RoutingOptions.NodeVicinityCost = 150;
            fc.RoutingOptions.NodeVicinitySize = 30F;
            fc.RoutingOptions.GridSize = 20F; //org 2F

            fc.ArrowCrossings = ArrowCrossings.Arcs; //org, removed

            fc.RouteAllArrows(); //execute
            fc.FitDocToObjects(2);//fit the document size
            fc.ZoomToFit(); //zoom to fit diagram to page
        }