import org.graphstream.algorithm.generator.BarabasiAlbertGenerator;
import org.graphstream.graph.Node;
import org.graphstream.graph.implementations.DefaultGraph;
import org.graphstream.stream.thread.ThreadProxyPipe;
import org.graphstream.ui.layout.springbox.SpringBox;
import org.graphstream.ui.swingViewer.Viewer;
import org.graphstream.ui.geom.Point3;

public class Test {

    public static void main(String[] args) throws Exception {
        BarabasiAlbertGenerator gen = new BarabasiAlbertGenerator();
        DefaultGraph g = new DefaultGraph("g");

        gen.addSink(g);

        gen.begin();
        for (int i = 0; i < 10; i++)
            gen.nextEvents();
        gen.end();

        SpringBox box = new SpringBox();
        ThreadProxyPipe pipe = new ThreadProxyPipe(box);
        pipe.addAttributeSink(g);
        Viewer v = g.display(false);
        v.enableAutoLayout(box);

        Thread.sleep(5000);
        pipe.pump();

        for (Node n : g) {
            Object[] xy = n.getArray("xyz");
            double x = (Double) xy[0];
            double y = (Double) xy[1];
            Point3 pixels = v.getDefaultView().getCamera().transformGuToPx(x, y, 0);
            System.out.printf("'%s': (%.3f;%.3f)\t--> (%.0f;%.0f)\n", n.getId(), x, y, pixels.x, pixels.y);
        }
    }
}