Re: Graphstream - Displaying graph on AWT / SWT

["Yoann Pigné" <yoann.pigne AT gmail.com>]

Johannes, I forwarded your answer to the mailing to give you more 
chances to get a solution.

The line:
        graphstreamLayout.setStabilizationLimit(0);
means that the layout will never stop. So depending on the shape of your 
graph, you may indeed end-up with a forever spinning graph. Try to put a 
value greater than 0 and up to 1 on this method.

Also you may uncomment the line:
        // graphstreamView = graphstreamViewer.addDefaultView(true);
to actually create the view.

It is just a guess, but the flickering problem may indeed come from the 
interaction with the SWT/AWT component for which we have very few 
expertise right now.

Good luck,


Yoann


On 21 Aug 2013, at 14:23, Johannes Spreemann wrote:

> Hi Yoann,
> I'm using the newest version 1.2 with the 1.2 GUI. I disabled the 
> AutoLayout now. Without this setting the graph keeps moving and 
> spinning around from the start. It also stops the flickering, but when 
> I move a node with the mouse the complete graph jumps and all nodes 
> flicker again.
> I'm giving you the complete method I use to create the view (some 
> refactoring needs to be done):
> public void generateGraph(Frame frame, String networkName) {		graph = 
> new SingleGraph(networkName);
>                 graph.setStrict(false);         graph.setAutoCreate(true);
>                 setActualEditedNetwork(getByName(networkName));
> 		for (Sensor s : getActualEditedIvn().getSensors()) 
> {			graph.addNode(s.getId());
> 			Node n = graph.getNode(s.getId());			n.addAttribute("ui.label", 
> s.getId());			n.setAttribute("ui.class", 
> s.getClass().getSimpleName());			n.setAttribute("x", 
> s.getPosition().x);			n.setAttribute("y", s.getPosition().y);		}		for 
> (Actuator a : getActualEditedIvn().getActuators()) 
> {			graph.addNode(a.getId());
> 			Node n = graph.getNode(a.getId());			n.addAttribute("ui.label", 
> a.getId());			n.setAttribute("ui.class", 
> a.getClass().getSimpleName());			n.setAttribute("x", 
> a.getPosition().x);			n.setAttribute("y", a.getPosition().y);		}		for 
> (Function f : getActualEditedIvn().getFunctions()) 
> {			graph.addNode(f.getId());
> 			Node n = graph.getNode(f.getId());			n.addAttribute("ui.label", 
> f.getId());			n.setAttribute("ui.class", 
> f.getClass().getSimpleName());			n.setAttribute("x", 
> f.getPosition().x);			n.setAttribute("y", f.getPosition().y);		}		for 
> (Message m : getActualEditedIvn().getMessages()) 
> {			graph.addNode(m.getId());
> 			Node n = graph.getNode(m.getId());			n.addAttribute("ui.label", 
> m.getId());			n.setAttribute("ui.class", 
> m.getClass().getSimpleName());			n.setAttribute("x", 
> m.getPosition().x);			n.setAttribute("y", m.getPosition().y);		}
> 		for (Edge e : getActualEditedIvn().getEdges()) 
> {			graph.addEdge(e.getId(), e.getSource().getId(), 
> e.getDestination()					.getId(), true);
> 			org.graphstream.graph.Edge gse = 
> graph.getEdge(e.getId());			gse.setAttribute("ui.class", 
> e.getClass().getSimpleName());			gse.addAttribute("ui.label", 
> e.getTokenNumber());		}
> 		String styleSheet = "node.Sensor { fill-color: blue; shape: circle; 
> size-mode: dyn-size; size: 0.25gu; stroke-mode: plain; stroke-color: 
> black; }\n";		styleSheet += "node.Actuator { fill-color: red;  shape: 
> circle; size-mode: dyn-size; size: 0.25gu; stroke-mode: plain; 
> stroke-color: black; }\n";		styleSheet += "node.Function { fill-color: 
> yellow;  shape: box; size-mode: dyn-size; size: 0.25gu; stroke-mode: 
> plain; stroke-color: black; }\n";		styleSheet += "node.Message { 
> fill-color:
> green;  shape: diamond; size-mode: dyn-size; size: 0.25gu; 
> stroke-mode: plain; stroke-color: black; }";		styleSheet += "edge { 
> arrow-shape: arrow; }";		graph.addAttribute("ui.stylesheet", 
> styleSheet);
>                 graph.addAttribute("ui.quality");             
> graph.addAttribute("ui.antialias");
> 		graphstreamViewer = new 
> Viewer(graph,				Viewer.ThreadingModel.GRAPH_IN_ANOTHER_THREAD);		graphstreamViewer.setCloseFramePolicy(CloseFramePolicy.CLOSE_VIEWER);
> 		graphstreamLayout = new 
> SpringBox();		graphstreamLayout.setStabilizationLimit(0);
> 		// 
> graphstreamViewer.enableAutoLayout(graphstreamLayout);		graphstreamViewer.disableAutoLayout();
> 		// graphstreamView = 
> graphstreamViewer.addDefaultView(true);		graphstreamRender = 
> Viewer.newGraphRenderer();		graphstreamView = new 
> DefaultView(graphstreamViewer, "view2",				graphstreamRender);
>                 graphstreamViewer.addView(graphstreamView);
>                 frame.add(graphstreamView);             
> frame.setVisible(true); }
>
> Kind regardsJohannes
>
> > From: 
> > yoann.pigne AT gmail.com
> > To: 
> > users AT graphstream-project.org;
> >  
> > johannesspreemann AT outlook.com
> > Subject: Fwd: Graphstream - Displaying graph on AWT / SWT
> > Date: Wed, 21 Aug 2013 13:05:00 +0200
> >
> > Dear Johannes,
> >
> > Allow me to forward your question to the GraphStream Mailing List.
> >
> > What version of gs-core do you use (1.0, 1.1, 1.2) ? There used to be
> > flickering problems with older versions. It should be OK with v1.2 
> > now.
> >
> > Are you using the advanced GUI (gs-ui) ?
> >
> > How do you retrieve the view from GraphStream ? It should be 
> > something
> > like :
> >
> > Viewer viewer = new Viewer(graph,
> > Viewer.ThreadingModel.GRAPH_IN_ANOTHER_THREAD);
> > View view = viewer.addDefaultView(false);   // false indicates "no
> > JFrame".
> > myJFrame.add(view);
> >
> > Let us know.
> >
> > Best regards,
> >
> > Yoann
> >
> > Forwarded message:
> >
> > > From: Johannes Spreemann 
> > > <johannesspreemann AT outlook.com>
> > > To: 
> > > yoann.pigne AT graphstream-project.org
> > > <yoann.pigne AT graphstream-project.org>
> > > Subject: Graphstream - Displaying graph on AWT / SWT
> > > Date: Wed, 21 Aug 2013 10:05:28 +0200
> > >
> > > Dear Yoann,
> > > I'm actual developing a Eclipse 4 RCP application that uses 
> > > basically
> > > SWT components. Your Graphstream library works very well, but I have
> > > one issue. I try to integrate the graph output in a SWT composite as
> > > follows:
> > > awtFrame = AWT_SWT.new_Frame(composite);
> > > ...awtFrame.add(graphStreamView);awtFrame.setVisible(true);
> > > The graph is displayed in the frame, but it keeps spinning around 
> > > and
> > > the image is flickering because the AWT frame misses Double 
> > > Buffering.
> > > Does your team have any suggestions or ideas to solve this problem?
> > >
> > > Kind regards
> > > Johannes                                        
>