Get x,y from identifed feature(s)

JohnPreston — Fri, 10 Jan 2014 16:59:34 GMT

Hi, I would like to get the x,y from identified features when user clicks on map. I would also like to get the count of features found. Does anyone have an exmaple or resource to point me to? Thank you!

Here is code to identify features when user clicks...

function mapReady(map) {
            getLocation();
            dojo.connect(map, "onClick", executeIdentifyTask);
            identifyTask = new esri.tasks.IdentifyTask("http://gisappserv3/ArcGIS/rest/services/Engineering/MaintenancePoints/MapServer");
            identifyParams = new esri.tasks.IdentifyParameters();
            identifyParams.tolerance = 5;
            identifyParams.returnGeometry = true;
            identifyParams.layerIds = [2, 15];
            identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_VISIBLE;
            identifyParams.width = map.width;
            identifyParams.height = map.height;
        }

function executeIdentifyTask(evt) {
            identifyParams.geometry = evt.mapPoint;
            alert(identifyParams.geometry('x'));
            identifyParams.mapExtent = myMap.extent;
            var deferred = identifyTask.execute(identifyParams);
            deferred.addCallback(function (response) {
                return dojo.map(response, function (result) {
                    var feature = result.feature;
                    feature.attributes.layerName = result.layerName;
                    console.log(feature.attributes.Location);
                    if (result.layerName === 'Maintenance Districts') {
                        $('input:radio[name="radioMaintDist"]').filter('[value="' + feature.attributes['District'] + '"]').next().click();
                    }
                    else {
                        $('#popStructureType').val(feature.attributes['Display Name']);
                    }
                    $('#popSWUStructure').popup('open');
                    var template = new esri.InfoTemplate("", "Facility ID: ${Manhole I.D.} <br/>");
                    feature.setInfoTemplate(template);
                    return feature;
                });
            });
        }

Re: Get x,y from identifed feature(s)

JohnPreston — Fri, 10 Jan 2014 17:30:13 GMT

I was able to figure out how to get the x,y by adding this code in the return dojo.map(response, function (result) {...
var mp = result.feature.geometry
alert(mp.x + " " + mp.y);

I still want to be able to county the number of features identified.

Re: Get x,y from identifed feature(s)

JonathanUihlein — Fri, 10 Jan 2014 18:12:17 GMT

Documentation for result of an IdentifyTask:

https://developers.arcgis.com/en/javascript/jsapi/identifyresult-amd.html

As you can see, it returns one feature (as a graphic). You've already discovered result.feature.geometry.x and result.feature.geometry.y, but it is all outlined in the documentation.

Hope this helps!

Re: Get x,y from identifed feature(s)

KenBuja — Fri, 10 Jan 2014 18:27:09 GMT

But you can get back many results from executing an IdentifyTask

identifyTask.execute(identifyParams, function (results) {      console.log(results.length); });

Re: Get x,y from identifed feature(s)

JohnPreston — Fri, 10 Jan 2014 19:29:32 GMT

Thanks Jon and Ken!

topic Re: Get x,y from identifed feature(s) in ArcGIS JavaScript Maps SDK Questions

Get x,y from identifed feature(s)

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Re: Get x,y from identifed feature(s)

Re: Get x,y from identifed feature(s)