satelliteRenderer.setVertexPaintFunction(
new PickableVertexPaintFunction(satelliteRenderer, Color.BLUE, Color.BLACK, Color.ORANGE));
pr.setVertexIconFunction(vi);
pr.setVertexShapeFunction(vi);
pr.setEdgeStrokeFunction(new ConstantEdgeStrokeFunction(2));
pr.setEdgePaintFunction(new NexsmEdgePaint());
Color c = _colorparams.get("defaultbackgroundcolor");
if (c != null)
vv.setBackground(c);