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Get position of markers

SamarthGupta

Hi everyone,

How can i get the position of the markers if the markers are overlapped at certain zoom level. If they are overlapped then i want to show the number of overlapped maker on the marker point or the picture marker.
Is this possible?

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Accepted answers

AntGiles

Sam,

You can add a cluster to a graphics layer pretty easy. Have a look at the attached mxml file

Regards

Anthony

sql3.png

Screenshot 2026-03-10 094454.png

AddExcel.zip

All comments

AntGiles

Sam,

You have not mentioned where your data is coming from, but have you tried clustering:

http://resources.arcgis.com/en/help/flex-viewer/concepts/index.html#/Clustering/01m30000004z000000/

http://resources.arcgis.com/en/help/flex-viewer/live/index.html?config=apps/config-clustering.xml

https://developers.arcgis.com/flex/sample-code/clustering.htm

Regards

Anthony

SamarthGupta

Hi Anthony,

I am getting my data from database, and i am getting data in this format and placing them on map like this.

protected function getLocation1_resultHandler(event:ResultEvent):void
{
 if(event.result.information.rmk != "error")
 {
  filterXML = event.result as XML;     
  var testPoint:MapPoint;
  var projParams:ProjectParameters = new ProjectParameters();
  for each(table2 in filterXML.information)
  {
   testPoint = new MapPoint(table2.ax, table2.ay);      
   var ptGraphic:Graphic = new Graphic(null, new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE, 5, 0x0000FF));
   ptGraphic.geometry = testPoint;
   ptGraphic.addEventListener(MouseEvent.CLICK, onClick);
   myGraphicsLayer.add(ptGraphic);      
  }
 }
}

These all mapPoints are in INDIA. How will i use cluster with this code?

SamarthGupta

Hi Anthony,

I have seen some of the examples of using clusters, they are being placed when a feature layer is called.

For example:

<esri:FeatureLayer id="featureLayer"
                           clusterer="{clusterer}"
                           definitionExpression="POP1990 &gt; 75000"
                           mode="snapshot"
                           outFields="*"
                           symbol="{defaultsym}"
                           url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0">

The URL in this feature layer points to "ESRI_StatesCitiesRivers_USA/MapServer/0". But, i could not find any URL for feature layer which could point out INDIA.

AntGiles

Sam,

You can add a cluster to a graphics layer pretty easy. Have a look at the attached mxml file

Regards

Anthony

sql3.png

Screenshot 2026-03-10 094454.png

AddExcel.zip

SamarthGupta

Thanks Anthony,

This has helped in no time.

AntGiles

Sam,

Glad I could help, if your question has been answered could you also please check the tick on the post that helped, to mark the question as answered,

Regards

Anthony

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