Get xy coordinates from a graphics layer or series of map points

JanicePeal — Tue, 13 Dec 2011 13:59:28 GMT

This is going to be a much more complex question than what the title suggests. I have a data provider that populates a list of items (that's created based on a query via stored procedure in SQL and returns XML), and each item in the list stores an x coordinate and a y coordinate. From this resulting data provider for the list I am dynamically generating points on a map in a graphics layer:

for (var i:int = 0; i < xys.length; i++)
{
    _resultsMapPoints = new MapPoint(Number(xys.centroidX),Number(xys.centroidY),new SpatialReference(3424));
    var myGraphic:Graphic;
    myGraphic = new Graphic(_resultsMapPoints,_sms_resultsRed); 
    this._gl_resultsMarkers.add(myGraphic);
}

What I'm trying to do next is based on a mouse click on an item in the list, match the xy of the selected item in the list to the xy of the graphic in _gl_resultsMarkers, and then place a speech bubble over the selected graphic in the correct place on the map. The speech bubble is a component stored in my map component so it's a map/stage comparison thing. I know I can use the map.toScreen option to get the bubble properly placed once I get my xy's, but I'm having trouble figuring out how to grab the xy's from the graphics (or do I need to loop through the MapPoints) to do the match to the array values in the first place. Any pointers would be greatly appreciated. I've been stuck on this for a day and a half now. Thanks in advance.

Re: Get xy coordinates from a graphics layer or series of map points

YungKaiChin — Tue, 13 Dec 2011 15:23:24 GMT

If I understand your question correct, this may be what you are looking for:

(myGraphic.geometry as MapPoint).x
(myGraphic.geometry as MapPoint).y

topic Re: Get xy coordinates from a graphics layer or series of map points in ArcGIS API for Flex Questions

Get xy coordinates from a graphics layer or series of map points

Re: Get xy coordinates from a graphics layer or series of map points