Hi,

The method shown here changes the link shapes to Bezier to pull them apart while keeping common end points:
http://mindfusion.eu/Forum/YaBB.pl?board=fcnet_disc;action=display;num=122711142...

The one here pulls apart straight-line links:
http://mindfusion.eu/Forum/YaBB.pl?board=fcnet_disc;action=display;num=126638813...

I hope that helps,
Stoyan

Hi,
I am rewriting the code and I can not find out how to deal with input parameter type LinkEventArgs. I can not find it anywhere, so I tried to exchange it for DiagramLink, which has common methods available. But there is a problem with
PointF pt1 = e.Link.ControlPoints[0];
Method DiagramLink.getControlPoint.get(0) does not return the same type as e.Link.ControlPoints[0];

I do not know if I am doing it correctly. Please give me an advice.

Thank you very much

I am going to try immediately . I hope I will do it. Thanks for your reactions, it helps me a lot.

It's not a float number but a Point2D.Float (a Float class embedded in the Point2D interface).

Hi,
I rewrote the code according to my needs, but it does not make any changes when I call the method.
I created angle and radius as global variables in order to avoid using reference

Here is how it looks like. If you will have a time, please look at it.

void diagram_LinkCreated(DiagramLink link1)
{
    List<DiagramLink> commonLinks = new ArrayList<DiagramLink>();
    commonLinks = GetCommonLinks(link1.getOrigin(), link1.getDestination());
    Float pt1 = link1.getControlPoints().get(0);
    Float pt2 = link1.getControlPoints().get(link1.getControlPoints().size() - 1);

    if (commonLinks.size() > 1)
    {
        for (int c = 0; c < commonLinks.size(); ++c)
        {
            DiagramLink link = commonLinks.get(c);
            link.setStyle(LinkStyle.Bezier);
            link.setSegmentCount(1);
            cp1 = new Float(pt1.x + 1 * (pt2.x - pt1.x) / 3, pt1.y + 1 * (pt2.y - pt1.y) / 3);
            cp2 = new Float(pt1.x + 2 * (pt2.x - pt1.x) / 3, pt1.y + 2 * (pt2.y - pt1.y) / 3);
            angle = 0;
            radius = 0;
            CartesianToPolar(pt1, pt2, angle, radius);
            int pairOffset = (c / 2 + 1) * 5;

            if (commonLinks.size() % 2 == 0)
            {
                PolarToCartesian(cp1, c % 2 == 0 ? angle - 90 : angle + 90, pairOffset, cp1);
                PolarToCartesian(cp2, c % 2 == 0 ? angle - 90 : angle + 90, pairOffset, cp2);

                if (link1.getControlPoints().get(0) == pt1)
                {
                    link.getControlPoints().set(1, cp1);
                    link.getControlPoints().set(2, cp2);
                }
                else
                {
                    link.getControlPoints().set(1, cp2);
                    link.getControlPoints().set(2, cp1);
                }
                link.updateFromPoints();
            }
        }
    }
}

List<DiagramLink> GetCommonLinks(DiagramNode node1, DiagramNode node2)
{
    List<DiagramLink> commonLinks = new ArrayList<DiagramLink>();

    for (DiagramLink link : node1.getOutgoingLinks())
        if (link.getDestination() == node2)
            commonLinks.add(link);

    for (DiagramLink link : node1.getIncomingLinks())
        if (link.getDestination() == node2)
            commonLinks.add(link);
    return commonLinks;
}

void PolarToCartesian(Float coordCenter, float a, float r, Float cartesian)
{
    if (r == 0)
    {
        cartesian = coordCenter;
        return;
    }
    cartesian.x = (float) (coordCenter.x + Math.cos(a * Math.PI / 180) * r);
    cartesian.y = (float) (coordCenter.y - Math.sin(a * Math.PI / 180) * r);
}

void CartesianToPolar(Float coordCenter, Float cartesian, float a, float r)
{
    if (coordCenter == cartesian)
    {
        a = 0;
        r = 0;
        return;
    }

    float dx = cartesian.x - coordCenter.x;
    float dy = cartesian.y - coordCenter.y;
    double x = Math.pow(dx, 2);
    double y = Math.pow(dy, a);
    double sqrt = Math.sqrt(x + y);
    r = (float) sqrt;
    a = (float) (Math.atan(-dy / dx) * 180 / Math.PI);
    if (dx < 0)
        a = a + 180;
    this.radius = r;
    this.angle = a;
}
 

Thanks very much

Michal

Thanks very much, surely it helps. But...I do not know why it does not function for my diagram
It makes no changes to it. I must have some mistake in the code I think.
I use very simple methods, I am very new to Jdiagram

At first a create diagram and diagramView. Than I call this method:

private void arrangeDiagram() {

  diagram.clearAll();


  addNodes();

  addEdges(); //adding lines between nodes

  arrange();
    }
 

arrange() is also very simple, i have used the LayeredLayout sample

 private void arrange()
{

  LayeredLayout layout = new LayeredLayout();

  layout.setEnforceLinkFlow(true);

  layout.setStraightenLongLinks(true);

  layout.setNodeDistance(10);

  layout.setLayerDistance(15);

  layout.arrange(diagram);

  diagram.resizeToFitItems(1);
}
 

I call the method diagram_LinkCreated(DiagramLink link1) when I create the second link from node1 to node2
Is it wrong? Can you please give me an advice again?

And the second question.. I am also trying to rewrite the code from http://mindfusion.eu/Forum/YaBB.pl?board=fcnet_disc;action=display;num=126638813...

What is the equivalent for node.GetCenter();
Thanks very much for your reply and time

Michal

Hi,
I have one more question aby link route. When there is a link from node1 to node2 and from node2 back to node1, is it possible to do it as it is shown in the picture attached?
I think I have seen such a topic somewhere, but I am looking for it for a long time and can not find it

https://docs.google.com/leaf?id=0B8vQshcp7q_QYTUzMGIyOGUtZGVmYS00MTNjLWE0ODEtZThkMTA4ZTEzZDU0&hl=en_US
 

Thank you very much

Michal