<?xml version="1.0"?> 
  <mx:Application
      xmlns:mx="http://www.adobe.com/2006/mxml"
      xmlns:fc="http://www.adobe.com/2006/fc"
      initialize="onLoad()">
  
  <fc:SpringGraph id="sg" width="100%" height="100%" 
          backgroundColor="#869ca7" repulsionFactor="1">
    <fc:itemRenderer>
      <mx:Component>
          <mx:Label fontSize="14" text="{data.id}" color="#ffffff"/>                                        
       </mx:Component>
    </fc:itemRenderer>
  </fc:SpringGraph>
  
  <mx:Parallel id="newItemEffect">
    <mx:SoundEffect source="@Embed(source='../assets/sound/bloop.mp3')"/>
    <mx:Blur duration="200" 
      blurXFrom="10.0" blurXTo="0.0" 
      blurYFrom="10.0" blurYTo="0.0"/>
  </mx:Parallel>
  
  <mx:Script>
    <![CDATA[
      import com.adobe.flex.extras.controls.springgraph.Graph;
      import com.adobe.flex.extras.controls.springgraph.Item;
      import flash.utils.Timer;
      import flash.events.TimerEvent;
  
      private var graph: Graph = new Graph();
      private var rootItem: Item;
      private var timer: Timer = new Timer(300, 0);
      private var itemCount: int = 0;
  
      private function onLoad(): void {
        addNode("R");
        timer.addEventListener("timer", timerHandler);
        timer.start();
        sg.addItemEffect = newItemEffect;
      }
  
      public function timerHandler(event:TimerEvent):void {
        addNode(new Number(++itemCount).toString(), "R");
        
        if(itemCount == 30)
          timer.stop();
      }
  
      private function addNode(id:String, linkedTo:String = null): void {
        var item: Item = new Item(id);
        graph.add(item);
        if(linkedTo)
          graph.link(graph.find(linkedTo), item);
        sg.dataProvider = graph;
      }
    ]]>
  </mx:Script>
  
  </mx:Application>