Graph graph = new MultiGraph("Dynamic !");
FileSourceGML source = new FileSourceGML();
graph.addAttribute("ui.quality");
graph.addAttribute("ui.antialias");
graph.display();
source.addSink(graph);
source.begin(TestSourceGML.class.getResourceAsStream("dynamic.gml"));
int step = 0;
while(source.nextStep()) {
System.err.printf("Step %d%n", step);