private void InitializeClusterGraphLayout() {
int numClusters = myGraph.GetNumberOfClusters();
double radius = Math.min(layout_width, layout_height) / 3.5;
double angleShift = (2 * Math.PI) / numClusters;
List<Functionality.Node> ln = myGraph.getNodes();
Node n;
int clusterID;
for (int i = 0; i < ln.size(); i++) {
n = ln.get(i);
clusterID = n.GetCluster();
if (clusterID == -1) continue;
double xnew =
(layout_width / 2)
+ Math.cos(angleShift * clusterID) * radius
+ (50 - Math.random() * 100);
double ynew =
(layout_height / 2)
+ Math.sin(angleShift * clusterID) * radius
+ (50 - Math.random() * 100);
layout.setLocation(n, xnew, ynew);
}
}
public JComponent drawGraph() {
// System.out.println("The graph qt"+qt.toString()); // DEBUG
// ISOMLayout
layout = new SpringLayoutWeighted(this.qt);
layout.setSize(new Dimension(layout_width, layout_height));
// layout.setSize(new Dimension(layout_width, layout_height));
vv = new MyVisualizationViewer<Functionality.Node, Functionality.Edge>(layout);
vv.setBackground(Color.WHITE);
vv.setPreferredSize(new Dimension(layout_width, layout_height));
vv.setIgnoreRepaint(true);
// Show vertex and edge labels
vv.getRenderContext().setVertexLabelTransformer(new DefaultToStringLabeller());
// BasicVertexLabelRenderer<Functionality.Node, Functionality.Edge> bvlr = new
// (BasicVertexLabelRenderer<Functionality.Node,
// Functionality.Edge>)(vv.getRenderContext().getVertexLabelRenderer());
BasicRenderer<Functionality.Node, Functionality.Edge> br = new BasicRenderer<Node, Edge>();
// br.setVertexLabelRenderer(new BasicVertexLabelRenderer<Functionality.Node,
// Functionality.Edge>(Position.CNTR));
vv.setRenderer(br);
// MyVertexLabelRenderer dvlr = new MyVertexLabelRenderer(Color.red);
// vv.getRenderContext().setVertexLabelRenderer(dvlr);
// bvlr.setPosition(Position.CNTR);
// vv.getRenderContext().setEdgeLabelTransformer(new ToStringLabeller());
vv.setDoubleBuffered(true);
// layout = new SpringLayout2<Functionality.Node, Functionality.Edge>(this.qt);
layout.initialize();
if (myGraph.GetNumberOfClusters() > 1) {
InitializeClusterGraphLayout();
}
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.step();
layout.lock(true);
CenterGraph(10, false);
// Create a graph mouse and add it to the visualization component
// DefaultModalGraphMouse gm = new DefaultModalGraphMouse();
DefaultModalGraphMouse gm = new DefaultModalGraphMouse();
gm.setMode(ModalGraphMouse.Mode.PICKING);
vv.addMouseListener(this);
VertexMouseMenu vMouseMenu = new VertexMouseMenu();
JPopupMenu vertexMenu = new MyVertexMenu();
vMouseMenu.setVertexPopup(vertexMenu);
gm.add(vMouseMenu);
vv.setGraphMouse(gm);
setEdgeWeightStrokeFunction();
vv.getRenderContext()
.setVertexShapeTransformer(
new VertexShapeSizeAspect<Functionality.Node, Functionality.Edge>(myGraph));
vv.getRenderContext().setVertexFillPaintTransformer(VertexColorTransformer.vctInstance);
MyGraphZoomScrollPane graphPane = new MyGraphZoomScrollPane(vv);
return graphPane;
}
