ArcGIS Api For Flex 动态画点和线

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 

      xmlns:s="library://ns.adobe.com/flex/spark" 

      xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:supportClasses="com.esri.ags.skins.supportClasses.*" minWidth="955" minHeight="600" xmlns:esri="http://www.esri.com/2008/ags"

      initialize="init()"

      >     

 <fx:Script>

  <![CDATA[

   import com.esri.ags.Graphic;

   import com.esri.ags.SpatialReference;

   import com.esri.ags.geometry.MapPoint;

   import com.esri.ags.geometry.Polyline;

   import com.esri.ags.layers.GraphicsLayer;

   import com.esri.ags.symbols.SimpleLineSymbol;

   import com.esri.ags.symbols.SimpleMarkerSymbol;

import mx.controls.Alert;

   private var arr:Array=

    [new MapPoint(123.361328,41.265625,new SpatialReference(5326)),

     new MapPoint(123.720703,41.703125,new SpatialReference(5326)),

     new MapPoint(123.431641,41.320313,new SpatialReference(5326)),

     new MapPoint(123.646484,41.515625,new SpatialReference(5326)),

     new MapPoint(123.763272,41.734675,new SpatialReference(5326)),

     new MapPoint(123.248047,41.710938,new SpatialReference(5326)),

     new MapPoint(124.248047,42.510938,new SpatialReference(5326)),

     new MapPoint(123.748047,43.210938,new SpatialReference(5326)),

     new MapPoint(123.748047,43.210938,new SpatialReference(5326))

    ];

   private var polyine:Polyline=new Polyline();

   private var graphicsLayer:GraphicsLayer=new GraphicsLayer();

   private var grahpic:Graphic=new Graphic();

   

   private function init():void

   {

    graphicsLayer.add(grahpic);

    Map.addLayer(graphicsLayer);

   }      

   private function PlayPoint(e:MouseEvent):void

   {

    

    graphicsLayer.clear();

    var i:int=0;

    var timer:Timer = new Timer(1000, arr.length-1);

    timer.addEventListener(TimerEvent.TIMER, TimerMethod);

    timer.start();

    function TimerMethod(event:TimerEvent):void

    {

     var mps:Array=new Array;

     var mpStat:MapPoint=arr[i] as MapPoint;

     

     

     grahpic=new Graphic(mpStat,sps);

     

     graphicsLayer.add(grahpic);

     i=i+1;

    }

   }

   private function PlayLine(e:MouseEvent):void

   {

    

    polyine=new Polyline();

    var i:int=0;

    var timer:Timer = new Timer(1000, arr.length-1);

    timer.addEventListener(TimerEvent.TIMER, TimerMethod);

    timer.start();

    function TimerMethod(event:TimerEvent):void

    {

     var mps:Array=new Array;

     var mpStat:MapPoint=arr[i] as MapPoint;

     var mpEnd:MapPoint=arr[i+1] as MapPoint;

     mps.push(mpStat);

     mps.push(mpEnd);

     polyine.addPath(mps);

        

     grahpic=new Graphic(polyine,sls);

     

     graphicsLayer.add(grahpic);

     i=i+1;

    }

   }

     

   

  ]]>

 </fx:Script>

 <fx:Declarations>

  <!-- 将非可视元素（比如服务、值对象）放在此处 -->

  <esri:SimpleLineSymbol id="sls"

          width="3"

          color="0x00FF00"/>

  <esri:SimpleMarkerSymbol id="sms"

         color="0x00FF00"

         size="12"

         style="square"/>

  <esri:PictureMarkerSymbol id="sps" source="http://localhost/Red_glow.swf"  width="20" height="20" />

 

 </fx:Declarations>

 <esri:Map id="Map" >

  <esri:ArcGISDynamicMapServiceLayer url="xxx "/>

</esri:Map>

 

  

 <mx:ControlBar  width="100%" top="0" left="0" paddingTop="0" paddingBottom="0"   horizontalAlign="left" >

  <mx:Button label="開始点轨迹"  width="100" fontSize="12" click="PlayPoint(event)"/>

  <mx:Button label="開始线轨迹"  width="100" fontSize="12" click="PlayLine(event)"/>

 </mx:ControlBar>

</s:Application>