topic Re: FlexViewer2 Search Widget with point layer in ArcGIS API for Flex Questions

FlexViewer2 Search Widget with point layer

JoshuaKalov — Fri, 09 Jul 2010 13:03:33 GMT

I have the new flexviewer and search widget set up with a point layer. With the graphical search tools, if I draw a polygon around a point, the search finds it. If I try to just use the "Search by point" and click on my point, the Search can't seem to find it. Anyone know what could be wrong? I'm thinking its a click tolerance thing?

Re: FlexViewer2 Search Widget with point layer

RobertScheitlin__GISP — Sat, 11 Dec 2021 12:11:49 GMT

Joshua,

There is not tolerance built in for the point graphical search so you have to add one on your own like this:

private function searchDrawEnd(event:DrawEvent):void
   {
    event.target.deactivate();
    var geom:Geometry = event.graphic.geometry;
    if(geom.type == Geometry.MAPPOINT)
    {
     //Expand the point by 5 pixels
     var point:MapPoint = geom as MapPoint;
     var xMin:Number = map.toScreen(point).x - 2.5;
     var yMin:Number = map.toScreen(point).y - 2.5;
     var xMax:Number = map.toScreen(point).x + 2.5;
     var yMax:Number = map.toScreen(point).y + 2.5;
     var mp1:MapPoint = map.toMap(new Point(xMin,yMin));
     var mp2:MapPoint = map.toMap(new Point(xMax,yMax));
     var ext:Extent = new Extent(mp1.x, mp1.y, mp2.x, mp2.y);
     var pA:Array = [];
                 var pPoly:Polygon = new Polygon(null,geom.spatialReference);
              pA.push(new MapPoint(ext.xmin,ext.ymin,geom.spatialReference));
              pA.push(new MapPoint(ext.xmin,ext.ymax,geom.spatialReference));
              pA.push(new MapPoint(ext.xmax,ext.ymax,geom.spatialReference));
              pA.push(new MapPoint(ext.xmax,ext.ymin,geom.spatialReference));
              pA.push(new MapPoint(ext.xmin,ext.ymin,geom.spatialReference));
     pPoly.addRing(pA);
     queryFeaturesGraphical(pPoly);
    } else {
     queryFeaturesGraphical(geom);
    }
   }

Re: FlexViewer2 Search Widget with point layer

JoshuaKalov — Mon, 12 Jul 2010 20:27:16 GMT

Thanks. I'll have to take a look at editing widgets.

Re: FlexViewer2 Search Widget with point layer

JoshuaKalov — Sat, 11 Dec 2021 12:11:52 GMT

Joshua,

There is not tolerance built in for the point graphical search so you have to add one on your own like this:

private function searchDrawEnd(event:DrawEvent):void
   {
    event.target.deactivate();
    var geom:Geometry = event.graphic.geometry;
    if(geom.type == Geometry.MAPPOINT)
    {
     //Expand the point by 5 pixels
     var point:MapPoint = geom as MapPoint;
     var xMin:Number = map.toScreen(point).x - 2.5;
     var yMin:Number = map.toScreen(point).y - 2.5;
     var xMax:Number = map.toScreen(point).x + 2.5;
     var yMax:Number = map.toScreen(point).y + 2.5;
     var mp1:MapPoint = map.toMap(new Point(xMin,yMin));
     var mp2:MapPoint = map.toMap(new Point(xMax,yMax));
     var ext:Extent = new Extent(mp1.x, mp1.y, mp2.x, mp2.y);
     var pA:Array = [];
                 var pPoly:Polygon = new Polygon(null,geom.spatialReference);
              pA.push(new MapPoint(ext.xmin,ext.ymin,geom.spatialReference));
              pA.push(new MapPoint(ext.xmin,ext.ymax,geom.spatialReference));
              pA.push(new MapPoint(ext.xmax,ext.ymax,geom.spatialReference));
              pA.push(new MapPoint(ext.xmax,ext.ymin,geom.spatialReference));
              pA.push(new MapPoint(ext.xmin,ext.ymin,geom.spatialReference));
     pPoly.addRing(pA);
     queryFeaturesGraphical(pPoly);
    } else {
     queryFeaturesGraphical(geom);
    }
   }

I am getting compile errors with this line:

var ext:Extent = new Extent(mp1.x, mp1.y, mp2.x, mp2.y);

1046: Type was not found or was not a compile-time constant: Extent. SearchWidget.mxml
1180: Call to a possibly undefined method Extent. SearchWidget.mxml

Re: FlexViewer2 Search Widget with point layer

JoshuaKalov — Mon, 19 Jul 2010 15:03:10 GMT

I got the extent error fixed (needed to add an include).

The search still won't recognize a point when clicking on it no matter what I set the tolerance for. Maybe it is something else that is causing it not to pick up the point?

Re: FlexViewer2 Search Widget with point layer

RobertScheitlin__GISP — Mon, 19 Jul 2010 22:13:45 GMT

Joshua,

That code works fine for me are you sure your map's spatial reference and your map service are the same WKID?