mxGraph.prototype.getBoundingBox=function(a){var b=null;if(null!=a&&0<a.length)for(var c=0;c<a.length;c++)if(this.model.isVertex(a[c])||this.model.isEdge(a[c])){var d=this.view.getBoundingBox(this.view.getState(a[c]),!0);null!=d&&(null==b?b=mxRectangle.fromRectangle(d):b.add(d))}return b};mxGraph.prototype.cloneCell=function(a,b,c,d){return this.cloneCells([a],b,c,d)[0]};