Latest Contributions by GISTeam

Thanks for the help ibespalov. I haven't stumbled on these video lessons before. ... View more

gis-varna, sample  -  sources via bindable attributes or dispatch/listen events Thank you for the examples I tried to do the task with the custom event method, but in order to use the custom event I have to import one of the mxml-s as a custom component. I couldn't do that so I tried to move the combobox to the main mxml and try to call the custom event from there but got an error that I didn't work out: 1061: Call to a possibly undefined method transferCurrentLayer through a reference with static type Class. Any idea what I am doing wrong? This is the zip with the mentioned project: http://dl.dropbox.com/u/5683647/InfoWindow_single_XML.zip ... View more

Hi, I got some progress on the InfoWindow and now there is a moOver an mouseOut events that should open it, but whe you put your mouse on the symbol it starts flickering because it's executing mouseOver and mouseOut endlessly. Maybe it's too sensitive and you have to be exact on the point. Does anyone have an idea how to modify the mouse events to make them "less sensitive" or something? Here is the modified code: <?xml version="1.0" encoding="utf-8"?> <mx:Application     xmlns:mx="http://www.adobe.com/2006/mxml"     xmlns:esri="http://www.esri.com/2008/ags"     layout="horizontal"     pageTitle="3 / query by extent"     initialize="initApp()">         <mx:Script>         <![CDATA[          import mx.effects.Glow;          import mx.events.EffectEvent;          import mx.events.ListEvent;             import com.esri.ags.Graphic;             import com.esri.ags.events.DrawEvent;             import com.esri.ags.events.ExtentEvent;          import com.esri.ags.geometry.Extent;             import com.esri.ags.geometry.MapPoint;             import com.esri.ags.tasks.Query;             import com.esri.ags.tasks.FeatureSet;             import mx.collections.ArrayCollection;          import mx.controls.Alert;             import mx.rpc.AsyncResponder;    import mx.managers.ToolTipManager;          private function initApp():void {           ToolTipManager.showDelay = 0;// Display immediately.       }             [Bindable] private var hashmapOfExistingGraphics : Object=new Object();                                                                    private function onExtentChange(event:ExtentEvent):void             {               query.geometry = myMap.extent;               queryTask.execute(query, new AsyncResponder( onResult, onFault ));             }             private function onResult( featureSet : FeatureSet, token : Object = null ) : void              {                 for each ( var myGraphic : Graphic in featureSet.features )                 {                         // only add features that are not already in the graphics layer                         var graphicID:String=myGraphic.attributes.HotSpot + "." + myGraphic.attributes.FID;                         if ( ! hashmapOfExistingGraphics[graphicID] )                         {                          // New feature (not already added to graphics layer                          hashmapOfExistingGraphics[graphicID]=1;                          myGraphic.symbol = defaultSymbol;                          myGraphic.addEventListener(MouseEvent.MOUSE_OVER, onMouseOver);                          myGraphic.addEventListener(MouseEvent.MOUSE_OUT, onMouseOut);                          myGraphic.id = graphicID;                          myGraphic.toolTip = myGraphic.attributes.CITY_NAME;                          myGraphicsLayer.add( myGraphic );                         }                 }                 var extent : Extent = myMap.extent;                 var graphic : Graphic;                 var results : ArrayCollection = new ArrayCollection;                 for (var i : Number = 0 ; i < myGraphicsLayer.numChildren ; i++)                 {                       graphic = myGraphicsLayer.getChildAt(i) as Graphic;                     trace("GG:" + graphic.geometry );                     if (extent.contains(MapPoint(graphic.geometry)))                     {                           results.addItem(graphic.attributes);                     }                 }                                 dg.dataProvider = results;             }                         private function onFault( info : Object, token : Object = null ) : void             {                 Alert.show( info.toString() );             }                          public function onMouseOver( event : MouseEvent ) : void    {     var graphic : Graphic = event.currentTarget as Graphic;     graphic.symbol = myInfoSymbol;    }       public function onMouseOut( event : MouseEvent ) : void    {                      //var graphic : Graphic = event.currentTarget as Graphic;     //graphic.symbol = highlightedSymbol;     Graphic( event.target ).symbol = highlightedSymbol;     //myGraphicsLayer.clear();              }                          private function onItemRollOver( event : ListEvent ) : void       {        var gr: Graphic = findGraphicByAttribute(event.itemRenderer.data)        gr.symbol = highlightedSymbol;        var glow:Glow = new Glow(gr);                 glow.duration = 2000 ;                 glow.alphaFrom = 1 ;                 glow.alphaTo = 0 ;                 glow.blurXFrom = 10 ;                 glow.blurXTo = 0 ;                 glow.blurYFrom = 20 ;                 glow.blurYTo = 0 ;                 glow.strength = 100;                 glow.color = redFill.color;                 glow.play();             }       private function onItemRollOut( event : ListEvent ) : void       {        findGraphicByAttribute(event.itemRenderer.data).symbol = defaultSymbol;       }             public function findGraphicByAttribute( attributes : Object ) : Graphic    {     for each( var graphic : Graphic in myGraphicsLayer.graphicProvider)     {      if ( graphic.attributes["CITY_NAME"] == attributes["CITY_NAME"])      {       return graphic;      }     }             return null;    }       public function findInList( graphic : Graphic ) : int    {     for each( var attributes : Object in dg.dataProvider )     {      if (attributes === graphic.attributes)      {       return (dg.dataProvider as ArrayCollection).getItemIndex(attributes)           }     }           return -1;    }         ]]>     </mx:Script>         <esri:SimpleFillSymbol id="redFill" alpha="0.5" color="0xFF0000"/>     <!-- setup stuff --> <esri:QueryTask id="queryTask" url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0"/> <esri:Query id="query" outFields="CITY_NAME, STATE_NAME, ELEVATION, FID" returnGeometry="true" />                    <esri:SimpleMarkerSymbol id="defaultSymbol" color="0x0000FF" style="triangle" size="20" />         <esri:SimpleMarkerSymbol id="highlightedSymbol" color="0xFF0000" style="triangle" size="20" />     <esri:InfoSymbol id="myInfoSymbol">      <esri:infoRenderer>       <mx:Component >            <mx:VBox label="{data.CITY_NAME}" backgroundColor="0xEEEEEE">            <mx:Label text="Name: {data.CITY_NAME}"/>                 <mx:Label text="State: {data.STATE_NAME}"/>            <mx:Label text="Elevation: {data.ELEVATION}"/>     </mx:VBox>       </mx:Component>           </esri:infoRenderer>         </esri:InfoSymbol>     <!-- visual stuff -->        <esri:Map id="myMap" extentChange="onExtentChange(event)">         <esri:extent>             <esri:Extent xmin="-125.9" ymin="44.6" xmax="-114.6" ymax="50.2">                 <esri:spatialReference>                     <esri:SpatialReference wkid="4326"/>                 </esri:spatialReference>             </esri:Extent>         </esri:extent>         <esri:ArcGISTiledMapServiceLayer             url="http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_StreetMap_World_2D/MapServer"/>         <esri:GraphicsLayer id="myGraphicsLayer"/>     </esri:Map>     <mx:VBox width="260" height="100%" backgroundColor="#FCFCFC" fontWeight="bold">                 <mx:DataGrid id="dg" width="100%" height="100%" itemRollOver="onItemRollOver(event)" itemRollOut="onItemRollOut(event)">             <mx:columns>                 <!-- <mx:DataGridColumn dataField="Cities In View Extent" /> -->                  <mx:DataGridColumn headerText="City Name" dataField="CITY_NAME"/>             </mx:columns>         </mx:DataGrid>        </mx:VBox>     </mx:Application> ... 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gis-varna,    You are going to have to check the visibleLayers property of each map service that is in the map, and use those results to set the identify parameters layerIds property. There are lots of different version of identify widgets out there in the forums and code gallery many by me and some by others that you can look at for code examples. Thank you very much Robert for all your help! I found this thread --> http://forums.esri.com/Thread.asp?c=158&f=2421&t=297427#945543 and they talk about a similar thing, but they mention an example you wrote and I sttruggle to find it. Can you please provide me with a link to the mentioned example? Best Regards ... View more

gis-varna,    That code is over 2 years old... Are you sure you want to use it as a source for current development? That is a good point. I guess I'll have to use "Identify Parameters" example. Is there a way for this "Identify Parameters" example to be changed to get info directly from the Dynamic map, because I want it to see the changes when somebody turns off a layer from the TOC? ... View more