topic Re: Identify Results Popup in ArcGIS JavaScript Maps SDK Questions

Identify Results Popup

NicholasKnabe — Fri, 28 Jun 2013 12:57:00 GMT

I successfully added this https://developers.arcgis.com/en/javascript/jssamples/find_popup.html to my application, but I was wondering if anybody knows if you can just get the attributes of layers that are one. Right now when I click on one of my layers it pulls up every feature within the pixel area instead of just the layers that are on...

Thank you!

Re: Identify Results Popup

KenBuja — Fri, 28 Jun 2013 14:19:59 GMT

Try changing

identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_ALL;

to

identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_VISIBLE;

Also, did you set the layerIds property to use only the visible layers?

identifyParams.layerIds = yourLayer.visibleLayers;

FYI, using the layerOption property along with the layerIds property will be important if you have layers are visible only at certain scales.

Re: Identify Results Popup

NicholasKnabe — Fri, 28 Jun 2013 14:24:40 GMT

I had just found that in the resources and I changed it and it still ID's all the layers. I'm using the Legend widget and then a TOC tab with check boxes to turn the layers on and off.

Re: Identify Results Popup

KenBuja — Fri, 28 Jun 2013 14:27:38 GMT

Take a look at the additional edit I made to my previous post about using layerIds.

Re: Identify Results Popup

NicholasKnabe — Fri, 28 Jun 2013 14:28:26 GMT

I just noticed that one. I have 15 layers. Right now I have

identifyParams.layerIds = SurveyPoints.visibleLayers;

That only returns my survey points popup and is correct how do I go about having all my layers be set to visiblelayers

Thanks for all the help the past couple days

Re: Identify Results Popup

KenBuja — Fri, 28 Jun 2013 14:31:03 GMT

In that case, you'll have to set the array yourself, like

identifyParams.layerIds = [0, 1, 4, 7, 17];

or you'll have to write some code to build the array according to how they are turned on by the TOC

Re: Identify Results Popup

NicholasKnabe — Fri, 28 Jun 2013 14:33:00 GMT

Yeah that is how I had it before is with the array, but then it still ID's all of them even if they are turned on or off. The layer_Option_Visible doesn't seem to catch anything

Re: Identify Results Popup

KenBuja — Sat, 11 Dec 2021 07:21:36 GMT

That leads to the question of why you have the 15 different layers. Is that required by the TOC control you're using? I'm using this TOC control and use it with only one layer (layerDynamic) with many sublayers. Thus when I use the code

identifyParams.layerIds = layerDynamic.visibleLayers;
identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_VISIBLE;

it only returns the attributes for the sublayers I have turned on through the TOC.

Re: Identify Results Popup

NicholasKnabe — Sat, 11 Dec 2021 07:21:39 GMT

I had not seen that TOC yet so I just switched mine to that format here is my current code

   var lubbock = new esri.layers.ArcGISDynamicMapServiceLayer("http://maps101.gis.halff.com/ladon/rest/services/Lubbock/LubbockCCTVAssets/MapServer", {
              id: 'lubbock',
              opacity: 0.8
          });

          dojo.connect(map, 'onLayersAddResult', function (results) {
              var toc = new agsjs.dijit.TOC({
                  map: map,
                  layerInfos: [{
                      layer: lubbock,
                      title: "Lubbock CCTV Assets"
                  }, ]
              }, 'tocDiv');
              toc.startup();

              lubbock.setVisibleLayers([9]);

          });
          map.addLayers([lubbock]);

Now getting down to the Identify part

  function mapReady(map) {
              dojo.connect(map, "onClick", executeIdentifyTask);
              //create identify tasks and setup parameters 
              identifyTask = new esri.tasks.IdentifyTask("http://maps101.gis.halff.com/ladon/rest/services/Lubbock/LubbockCCTVAssets/MapServer/");
              identifyParams = new esri.tasks.IdentifyParameters();
              identifyParams.tolerance = 3;
              identifyParams.returnGeometry = true;
              identifyParams.layerIds = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17]
              identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_VISIBLE;
              identifyParams.width = map.width;
              identifyParams.height = map.height;

          }

I should be able to set layerIds=lubbock.visibleLayers;

Correct?

Re: Identify Results Popup

KenBuja — Sat, 11 Dec 2021 07:21:42 GMT

I have mine set up slightly differently where I load and set the visibleLayers of the layer, then wait until the load is complete before initializing the TOC.

And now that I think back, I also discovered that I should have been setting the visibleLayers in the executeIdentifyTask function. That would change the visible layers when you turned various layers on and off using the TOC tool for each time you click on the map. I believe that's why you were originally having the problem with the LAYER_OPTION_VISIBLE giving you all the layers.


    layerDynamic= new esri.layers.ArcGISDynamicMapServiceLayer(parameters.url, {
        id: 'Dynamic'
    });
    map.addLayers([layerDynamic]);
    layerDynamic.setVisibleLayers(parameters.visibleLayers);

    map.on("layers-add-result", function (event) {

        try {
            var toc = new agsjs.dijit.TOC({
                map: map,
                layerInfos: [{
                    layer: layerDynamic,
                    title: "Legend",
                    slider: true
                }]
            }, 'tocDiv');
            toc.startup();
        }
        catch (e) {
            console.log(e.message);
        }
        mapReady(map);
    });

    function mapReady(map) {
        map.on("click", executeIdentifyTask);
        identifyTask = new esri.tasks.IdentifyTask(parameters.url);
        identifyParams = new esri.tasks.IdentifyParameters();
        identifyParams.tolerance = 3;
        identifyParams.returnGeometry = true;
        //identifyParams.layerIds = [0, 117];
        identifyParams.layerIds = layerDynamic.visibleLayers;
        identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_VISIBLE;
        identifyParams.width = map.width;
        identifyParams.height = map.height;

        map.infoWindow.resize(415, 200);
        map.infoWindow.setContent(tc.domNode);
        map.infoWindow.setTitle("Results");
    }

    function executeIdentifyTask(evt) {
        map.graphics.clear();
        identifyParams.geometry = evt.mapPoint;
        identifyParams.mapExtent = map.extent;
        identifyParams.layerIds = layerDynamic.visibleLayers;

Re: Identify Results Popup

NicholasKnabe — Tue, 02 Jul 2013 19:50:58 GMT

I still cannot get mine to just identify the visible layers.I have tried your way and my way and it still gives me results of every layer

Re: Identify Results Popup

KenBuja — Wed, 03 Jul 2013 11:52:14 GMT

Can you post more of your code (like the executeIdentifyTask) or set up a Fiddle to replicate your issue?

Re: Identify Results Popup

NicholasKnabe — Sat, 11 Dec 2021 07:21:44 GMT

 function mapReady(map) {
          dojo.connect(map, "onClick", executeIdentifyTask);
          //create identify tasks and setup parameters 
          identifyTask = new esri.tasks.IdentifyTask("http://maps101.gis.halff.com/ladon/rest/services/Lubbock/LubbockCCTVAssets/MapServer/");
          identifyParams = new esri.tasks.IdentifyParameters();
          identifyParams.tolerance = 3;
          identifyParams.returnGeometry = true;
          identifyParams.layerIds = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17];
          identifyParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_ALL;
          identifyParams.width = map.width;
          identifyParams.height = map.height;

      }


      function executeIdentifyTask(evt) {
          identifyParams.geometry = evt.mapPoint;
          identifyParams.mapExtent = map.extent;
          var deferred = identifyTask.execute(identifyParams);

          deferred.addCallback(function (response) {
              // response is an array of identify result objects    
              // Let's return an array of features.
              return dojo.map(response, function (result) {
                  var feature = result.feature;
                  feature.attributes.layerName = result.layerName;

                  if (result.layerName === 'Survey Points') {
                      console.log(feature.attributes.OBJECTID);
                      var template = new esri.InfoTemplate("Survey Points", "<br/> Unique ID: ${UNIQUE_ID}<br/> X Coord: ${X_COORD}<br/> Y Coord: ${Y_COORD}<br/> Z Coord: ${Z_COORD}<br/> Type:${Type}<br/> Status: ${Status}<br/> Data Source: ${DATA_SOURCE}<br/> Shape: ${SHAPE}<br/> Survey Date: ${SURVEY_DATE}<br/>Alternate Name: ${ALT_NAME}");


                      feature.setInfoTemplate(template);

                  }
                  else if (result.layerName === 'CCTV Observations') {
                      var template = new esri.InfoTemplate("CCTV Observations", "<br/> CCTV Route: ${CCTV_ROUTE}<br/> CCTV Distance: ${CCTV_DISTANCE}<br/> CCTV Code: ${CCTV_CODE}<br/> CCTV Value Percent: ${CCTV_VALUE_PERCENT}<br/> CCTV Clock From: ${CCTV_CLOCK_FROM}<br/> CCTV Clock To: ${CCTV_CLOCK_TO}<br/> CCTV Grade: ${CCTV_GRADE} <br/>CCTV Continuous: ${CCTV_CONTINUOUS}<br/> CCTV Observation Type:${CCTV_OBS_TYPE}<br/> CCTV Observation:${CCTV_OBSERVATION}<br/> CCTV Remark:${CCTV_REMARK} <br/>Shape:${SHAPE}<br/> CCTV Attachment:${CCTV_Attach}");
                      feature.setInfoTemplate(template);
                  }

                  else if (result.layerName === 'Manholes') {
                      var template = new esri.InfoTemplate("Manholes", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Inlets') {
                      var template = new esri.InfoTemplate("Inlets", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Infalls') {
                      var template = new esri.InfoTemplate("Infalls", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Outfalls') {
                      var template = new esri.InfoTemplate("Outfalls", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Channel Features') {
                      var template = new esri.InfoTemplate("Channel Features", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Pipe Features') {
                      var template = new esri.InfoTemplate("Pipe Features", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Playa Centroids') {
                      var template = new esri.InfoTemplate("Playa Centroids", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Pipes') {
                      var template = new esri.InfoTemplate("Pipes", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Flumes') {
                      var template = new esri.InfoTemplate("Flumes", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Dams') {
                      var template = new esri.InfoTemplate("Dams", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Channels') {
                      var template = new esri.InfoTemplate("Channels", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'CCTV Routes') {
                      var template = new esri.InfoTemplate("CCTV Routes", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Virtual Links') {
                      var template = new esri.InfoTemplate("Virtual Links", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Stormwater Systems') {
                      var template = new esri.InfoTemplate("Stormwater Systems", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Asset Footprints') {
                      var template = new esri.InfoTemplate("Asset Footprints", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  else if (result.layerName === 'Playa Lakes') {
                      var template = new esri.InfoTemplate("Playa Lakes", "${*}")
                      feature.setInfoTemplate(template);
                  }
                  map.infoWindow.setFeatures([deferred]);
                  map.infoWindow.show(evt.mapPoint);
                  return feature;
              });
          });

Re: Identify Results Popup

KenBuja — Sat, 11 Dec 2021 07:21:47 GMT

Add the line in red to your executeIdentifyTask. Every time you turn on/off a layer using the TOC control, the visibleLayers property of the layer "lubbock" will change. So every time you click on the map, triggering the executeIdentifyTask event, you'll have to update identifyParams.layerIds

      function executeIdentifyTask(evt) {
          identifyParams.geometry = evt.mapPoint;
          identifyParams.mapExtent = map.extent;
          identifyParams.layerIds = lubbock.visibleLayers;
          var deferred = identifyTask.execute(identifyParams);

Re: Identify Results Popup

NicholasKnabe — Wed, 03 Jul 2013 14:14:23 GMT

Thank you I added that, but I'm still getting the results of all my features...

Re: Identify Results Popup

KenBuja — Wed, 03 Jul 2013 16:35:04 GMT

Take a look at this Fiddle, which uses the TOC control. The IdentifyTask will only show the layers turned on in the TOC.

Re: Identify Results Popup

NicholasKnabe — Wed, 03 Jul 2013 17:35:05 GMT

Thanks again for the help I just cannot seem to integrate anything I have read or seen into my code. I modify everything and change it to my stuff and it still ID's everything no matter if it is turned on or off in the TOC...

Re: Identify Results Popup

TracySchloss — Sat, 11 Dec 2021 07:21:50 GMT

I have a similar situation, where I'm using the TOC widget and saw that my identify was returning everything. I added the current layer Ids in my IdentifyParameters and that made it stop identifying layers that weren't turned on, even though I had it set to esri.tasks.IdentifyParameters.LAYER_OPTION_VISIBLE .

I thought it was totally working, until I tried unchecking all the boxes associated with a layer in my TOC, while leaving the name of the layer checked (my district layer has 3 different districts within it for house, senate and congressional) . When I went to define my IdentifyParameters, the array of visible layers ended up as [-1]. That wasn't an acceptable input for layerIds. Neither is an empty array. So I changed it to

var visLayers = layer.visibleLayers;
 if (visLayers !== -1) {
 identifyParams.layerIds = layer.visibleLayers;
 }

So only layers that have anything visible in them will have a layerIds parameter defined. My identifyParameters definition is now happy, but my identify still fails.

Should I be digging into the TOC code? I noticed that if I uncheck the layer name too, I don't get the error. The default behavior in the TOC is if uncheck everything within a layer, the layer still stays checked as on.

Re: Identify Results Popup

TracySchloss — Wed, 21 Aug 2013 18:17:33 GMT

Never mind, I figured out a work around. I'm using a deferred list to execute my identify tasks. In that code, I just checked to see if the layer had any visible layers. If it didn't , I don't create an identify task in the first place.