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Change the relation source & target point [message #146453]

Tue, 14 August 2007 07:52

Marc Mising name

Messages: 193
Registered: July 2009
Location: Valencia, Spain

Senior Member

I have implemented an layout algorithm to reorganize the nodes into a
diagram, but now I want to change the source and target point of the
relations between 2 nodes. Somebody knows how to do this?

I try to access to the Bendpoints of the relation, but I think it's not
what I want...

Thanks. Marc.

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Re: Change the relation source & target point [message #146510 is a reply to message #146453]

Tue, 14 August 2007 09:34

Eclipse User

Originally posted by: 5d5.mail.ru

They are calculated by connection anchors. Nodes return them for
incoming and outgoing connections.

@see org.eclipse.draw2d.ConnectionAnchor, org.eclipse.gef.NodeEditPart

Marc wrote:
> I have implemented an layout algorithm to reorganize the nodes into a
> diagram, but now I want to change the source and target point of the
> relations between 2 nodes. Somebody knows how to do this?
>
> I try to access to the Bendpoints of the relation, but I think it's not
> what I want...
>
> Thanks. Marc.
>

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Re: Change the relation source & target point [message #146601 is a reply to message #146510]

Wed, 15 August 2007 10:12

Marc Gil

Messages: 81
Registered: July 2009

Member

I try to modify the ID of the Anchor (the class that implements Anchor is
called IdentityAnchorImpl, so the class is IdentityAnchor). So I try to
modify this ID, and I put for example "0.5, 0.99" in the source of the
relation, but the change doesn't reflect in the diagram. I want the
relation starts in the down-center of the source, and finishes in the
top-center of the target ("0.5, 0.01", for example).

Dmitry Stadnik wrote:

> They are calculated by connection anchors. Nodes return them for
> incoming and outgoing connections.

> @see org.eclipse.draw2d.ConnectionAnchor, org.eclipse.gef.NodeEditPart

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