Function initialize

docs/app/js/sanddance-app.js:123147–123157

(scene)

    return initialize(scene);
}
function initialize(scene) {
    var type7 = scene.marktype, items = scene.items, parent, i, n;
    if (items) for(i = 0, n = items.length; i < n; ++i){
        parent = type7 ? "mark" : "group";
        items[i][parent] = scene;
        if (items[i].zindex) items[i][parent].zdirty = true;
        if ("group" === (type7 || parent)) initialize(items[i]);
    }
    if (type7) boundMark(scene);
    return scene;
}
function Scenegraph(scene) {
    if (arguments.length) this.root = sceneFromJSON(scene);
    else {