Hi, I have a Json string that contains data of a node list and a link list (json retrieved from the server), I have some problems:
- In the image file I have attached, in the red circle area, the node creates the link itself. how to fix it?
- I want to define 4 corners of a shape node (top, bottom, left, right) to create the correct link?

I want to show you a part of my Json data:
"linkDataArray" : [
{
  "from" : 1, // id shape node from
  "to" : 3, // id shape node to
  "fromPort" : R, // The starting position of the link (R: right, L: left, T: top, B: bottom)
  "toPort" : L, // End position of link
  "visible" : true,
  "text" : Điều kiện,
  "isDeletable" : false,
  "points" : null
}
]
The above json section shows when creating the link.

---

Quote:

- In the image file I have attached, in the red circle area, the node creates the link itself. how to fix it?

If you call createDiagramLink(sameNode, sameNode), the control assigns a self-loop Bezier shape to it, but that doesn't seem to consider the case when the self-loop link connects different anchor points. After creating the link and assigning the anchor points, you can set the link shape to whatever you like, e.g. try something like this -

[code]
PointF start = link.getStartPoint();
PointF end = link.getEndPoint();
link.setShape(LinkShape.Polyline);
link.setSegmentCount(4);

// case for right to top directon
PointList points = link.getControlPoints();
points.set(0, start);
points.set(1, new PointF(start.x + offset, start.y));
points.set(2, new PointF(start.x + offset, end.y - offset));
points.set(3, new PointF(end.x, end.y - offset));
points.set(4, end));
link.updateFromPoints()[/code]


Quote:

- I want to define 4 corners of a shape node (top, bottom, left, right) to create the correct link?

Copy the first AnchorPattern definition from AnchorPoints sample project and assign it to your nodes, and then match your R/L/T/B port values to the respective point indices when you call setOriginAnchor / setDestinationAnchor.

Regards,
Slavcho

setOriginAnchor/setDestinationAnchor?
I read the document: An integer value specifying the index of the origin anchor point.
what values ​​are received?

Value is the index of AnchorPoint element within AnchorPattern's list. Try setting these from within the AnchorPoints sample project to see how they work.

Regards,
Slavcho

Is this the correct answer?:

new AnchorPoint(50, 0, true, true), // TOP
new AnchorPoint(100, 50, true, true), // RIGHT
new AnchorPoint(50, 100, true, true), // BOTTOM
new AnchorPoint(0, 50, true, true) // LEFT

Yes, these are correct sides if you mean the comments.

Thank you very much!  ;D