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zigzag connection shape [message #857145]

Thu, 26 April 2012 09:25

Erdal Karaca

Messages: 854
Registered: July 2009

Senior Member

I need to connect two nodes by a zigzag line...
If the nodes are moved the zigzag line must not be stretched to fill the distance, instead, it must "continue" or a part of it must be repeated to fill the new gap...

Is this supported?

See attachment as an example

Attachment: zigzag-line.png
(Size: 12.26KB, Downloaded 336 times)

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Re: zigzag connection shape [message #857349 is a reply to message #857145]

Thu, 26 April 2012 13:22

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

That should be possible by hooking into the move feature for your shape.
There you can modify the connection as well and add more bendpoints to it.
So, you should use a FreeformConnection for your connections.

Michael

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Re: zigzag connection shape [message #871566 is a reply to message #857349]

Mon, 14 May 2012 12:31

Erdal Karaca

Messages: 854
Registered: July 2009

Senior Member

I tried to use this:

{
FreeFormConnection ffc = peCreateService
					.createFreeFormConnection(getDiagram());
			connection = ffc;
			connection.setStart(addConContext.getSourceAnchor());
			connection.setEnd(addConContext.getTargetAnchor());
			ffc.getBendpoints().addAll(
					calcBendPoints((IAddConnectionContext) context));
			ffc.setActive(false);

			Polyline polyline = gaService.createPlainPolyline(connection);
			polyline.setStyle(StyleUtil.getStyleForEClass(getDiagram()));
}

private Collection<? extends Point> calcBendPoints(
			IAddConnectionContext context) {
		List<Point> points = new ArrayList<Point>();
		IGaService gaService = Graphiti.getGaService();

		int x = 0;
		int y = 0;
		points.add(gaService.createPoint(x + 10, y + 10));
		points.add(gaService.createPoint(x + 20, y + -10));
		points.add(gaService.createPoint(x + 30, y + 10));
		points.add(gaService.createPoint(x + 40, y + -10));
		points.add(gaService.createPoint(x + 50, y + 10));
		points.add(gaService.createPoint(x + 60, y + -10));
		points.add(gaService.createPoint(x + 70, y + 10));
		points.add(gaService.createPoint(x + 80, y + -10));
		points.add(gaService.createPoint(x + 90, y + 10));
		return points;
	}

The x and y of the IAddConnectionContext are both -1, so, how do I get the origin coord of the connection's start?

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