Something like this?
Canvas3D canvas = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
View view = new View();
ViewPlatform vplat = new ViewPlatform();
view.attachViewPlatform(vplat);
BranchGroup viewBranch = new BranchGroup();
viewBranch.addChild(vplat);
PhysicalBody pBody = new PhysicalBody();
view.setPhysicalBody(pBody);
PhysicalEnvironment pEnv = new PhysicalEnvironment();
view.setPhysicalEnvironment(pEnv);
view.addCanvas3D(canvas);
& see also the javadoc for ViewSpecificGroup
regards