Function toJSON

docs/app/js/sanddance-app.js:123172–123174

(indent)

}
Scenegraph.prototype = {
    toJSON (indent) {
        return sceneToJSON(this.root, indent || 0);
    },
    mark (markdef, group6, index) {
        group6 = group6 || this.root.items[0];
        const mark = createMark(markdef, group6);