public void initInstances() {
VizCommander commander = new VizCommander();
vizConfig = new VizConfig();
graphIO = new StandardGraphIO();
engine = new CompatibilityEngine();
vizEventManager = new StandardVizEventManager();
scheduler = new CompatibilityScheduler();
modelClassLibrary = new StandardModelClassLibrary();
limits = new GraphLimits();
dataBridge = new DHNSDataBridge();