mxHierarchicalLayout.prototype.filterDescendants=function(a,b){var c=this.graph.model;c.isVertex(a)&&a!=this.parent&&this.graph.isCellVisible(a)&&(b[mxObjectIdentity.get(a)]=a);if(this.traverseAncestors||a==this.parent&&this.graph.isCellVisible(a))for(var d=c.getChildCount(a),e=0;e<d;e++){var f=c.getChildAt(a,e);this.isPort(f)||this.filterDescendants(f,b)}};mxHierarchicalLayout.prototype.isPort=function(a){return null!=a&&null!=a.geometry?a.geometry.relative:!1};