public static Graph reverseGraph(final Graph g) {
Graph g2 = g;
for (Iterator it = g.edges(); it.hasNext(); ) {
Edge e = (Edge) it.next();
int edgeRow = e.getRow();
e = g2.getEdge(edgeRow);
int newTarget = e.getSourceNode().getRow();
int newSource = e.getTargetNode().getRow();
e.set(0, new Integer(newSource));
e.set(1, new Integer(newTarget));
}
return g2;
}
public SelfLoopsParallelEdges(final Graph g) {
HashSet selfLoops = new HashSet();
HashSet parallelEdges = new HashSet();
HashMap edges = new HashMap();
boolean directed = g.isDirected();
Edge edg;
for (Iterator it = g.edges(); it.hasNext(); ) {
edg = (Edge) it.next();
this.addEdge(edg, directed, selfLoops, parallelEdges, edges);
}
selfLoopInfo = this.calculateSelfLoops(selfLoops);
parallelEdgeInfo = this.calculateParallelEdges(parallelEdges, edges);
selfLoops = null;
edges = null;
parallelEdges = null;
edg = null;
}
/** @see prefuse.data.Node#edges() */
public Iterator edges() {
return m_graph.edges(this);
}