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adding anchors to connections? [message #1022256]

Thu, 21 March 2013 10:56

Annika Wießgügel
Messages: 11
Registered: January 2013

Junior Member

Hey,
i want to start a connection at the middle of another connection.
Is it possible to add anchors to a connection?

Or are there any limitations in graphiti i should now about?

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Re: adding anchors to connections? [message #1022320 is a reply to message #1022256]

Thu, 21 March 2013 13:07

Hallvard Traetteberg is currently offline

Hallvard Traetteberg
Messages: 536
Registered: July 2009
Location: Trondheim, Norway

Senior Member

On 21.03.13 07.56, Annika Wießgügel wrote:
> Hey,
> i want to start a connection at the middle of another connection.
> Is it possible to add anchors to a connection?

I also need this in a feature that is supposed to create a fork where
there was only a connection. I want to have an anchor on the middle of
the connection, that can be used as a starting point for another connection.

A connection is an anchor container, so it is possible to add it.
However, I've not been able to use that anchor as the starting point for
a connection, nor make it visible.

> Or are there any limitations in graphiti i should now about?

Well, there seems to be, but I'm not sure it is intentional or just
something that's not implemented, yet. Hope to see an "official" answer
to this question.

Hallvard

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Re: adding anchors to connections? [message #1022629 is a reply to message #1022320]

Fri, 22 March 2013 05:02

Felix Velasco
Messages: 25
Registered: July 2009

Junior Member

This has been available for a long time now (https://bugs.eclipse.org/bugs/show_bug.cgi?id=326396), please see the Sketch example for a working example. The relevant section is in the AbstractSketchCreateSimpleConnectionFeature#create method.

The trick is that you don't add an anchor to an existing connection, but a brand new shape in the middle of it.

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Re: adding anchors to connections? [message #1024022 is a reply to message #1022629]

Mon, 25 March 2013 12:51

Hallvard Traetteberg
Messages: 536
Registered: July 2009
Location: Trondheim, Norway

Senior Member

On 22.03.13 02.02, Felix Velasco wrote:
> This has been available for a long time now
> (https://bugs.eclipse.org/bugs/show_bug.cgi?id=326396), please see the
> Sketch example for a working example. The relevant section is in the
> AbstractSketchCreateSimpleConnectionFeature#create method.
>
> The trick is that you don't add an anchor to an existing connection, but
> a brand new shape in the middle of it.

This trick does not utilize the fact that connections are anchor
containers, which was what the question was about. But I agree that the
trick is nice. I did something similar myself, but created the
connection point using a separate double-click feature. It is better to
do it in the create connection feature, like in the example.

Hallvard

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Re: adding anchors to connections? [message #1027016 is a reply to message #1024022]

Tue, 26 March 2013 09:09

Michael Wenz
Messages: 1267
Registered: July 2009
Location: Walldorf, Germany

Senior Member

To answer that last open question: anchors in connections are currently not
supported by Graphiti.

Michael

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