minimal-scenejs-graph.js

var graph = SceneJs.graph(

        SceneJs.node({

                preVisit: function(nodeContext) {
	             	// Your pre-visit functionality
                },

                postVisit: function(nodeContext) {
			// Your post-visit functionality
                },
            },

            SceneJs.node(),
            SceneJs.node()
        ),
        SceneJs.node()
);

graph.traverse();