JS API 3.13 - IdentifyParameters undefined?

LauraMiles1 — Thu, 11 Jun 2015 21:19:46 GMT

Hi All,

I've been struggling with this code, everything has been working until I tried to throw in the ability to identify. When I run the code, I get the error that identifyParams is undefined. Specifically, "Uncaught TypeError: Cannot set property 'geometry' of undefined"

Can anyone see what I've got wrong? Thanks in advance.

var map;

require([

"esri/InfoTemplate",

"esri/map",

"esri/dijit/BasemapToggle",

"esri/dijit/Popup",

"esri/dijit/Scalebar",

"esri/dijit/Search",

"esri/Color",

"esri/InfoTemplate",

"esri/layers/ArcGISDynamicMapServiceLayer",

"esri/layers/FeatureLayer",

"esri/layers/ImageParameters",

"esri/symbols/SimpleFillSymbol",

"esri/symbols/SimpleLineSymbol",

"esri/tasks/IdentifyTask",

"esri/tasks/IdentifyParameters",

"dojo/_base/array",

"dojo/dom",

"dojo/on",

"dojo/query",

"dojo/ready",

"dijit/registry",

"dojo/dom-construct",

"dojo/parser",

"dojo/domReady!"

function(

InfoTemplate,

Map,

BasemapToggle,

Popup,

Scalebar,

Search,

Color,

InfoTemplate,

ArcGISDynamicMapServiceLayer,

FeatureLayer,

ImageParameters,

SimpleFillSymbol,

SimpleLineSymbol,

IdentifyTask,

IdentifyParameters,

arrayUtils,

dom,

on,

query,

ready,

registry,

domConstruct,

parser

) {

var layer, visibleLayerIds = [], identifyTask, identifyParams;

var popup = new Popup({

fillSymbol: new SimpleFillSymbol(SimpleFillSymbol.STYLE_SOLID,

new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,

new Color([255, 0, 0]), 2), new Color([255, 255, 0, 0.25]))

}, domConstruct.create("div"));

map = new Map("map", {

basemap: "topo",

center: [-123, 49.2],

zoom:10,

infoWindow: popup

});

//Use the ImageParameters to set the visibleLayerIds layers in the map service during ArcGISDynamicMapServiceLayer construction.

var imageParameters = new ImageParameters();

//VFPA Boundary line layers (confirmed and non-confirmed) visible on startup

imageParameters.layerIds = [0,2];

imageParameters.layerOption = ImageParameters.LAYER_OPTION_SHOW;

//can also be: LAYER_OPTION_EXCLUDE, LAYER_OPTION_HIDE, LAYER_OPTION_INCLUDE

var layerCadastral = new ArcGISDynamicMapServiceLayer("http://cop-gis4:6080/arcgis/rest/services/MOR/MOR_Cadastral_WGS1984/MapServer",

{

"imageParameters": imageParameters

});

map.addLayer(layerCadastral);

//every time a layer is clicked, update the layer visibility

on(dom.byId("chkVFPABoundary"), "change", updateLayerVisibility);

on(dom.byId("chkMunicipalBoundaries"), "change", updateLayerVisibility);

on(dom.byId("chkLots"), "change", updateLayerVisibility);

function updateLayerVisibility () {

var inputs = query(".list_item");

var inputCount = inputs.length;

//Dummy layer - is there a workaround? Setting this to an actual layer means that layer can't be turned off

visibleLayerIds = [1001];

for (var i = 0; i < inputCount; i++) {

if (inputs.checked) {

visibleLayerIds.push(inputs.value);

}

if (visibleLayerIds.length === 0) {

visibleLayerIds.push(-1);

}

layerCadastral.setVisibleLayers(visibleLayerIds);

}

//Basemap toggle

var toggle = new BasemapToggle({

map: map,

basemap: "satellite"

}, "BasemapToggle");

toggle.startup();

var scalebar = new Scalebar({

map: map,

// "dual" displays both miles and kilmometers

// "english" is the default, which displays miles

// use "metric" for kilometers

scalebarUnit: "dual"

});

var s = new Search({

enableButtonMode: false, //this enables the search widget to display as a single button

enableLabel: false,

enableInfoWindow: true,

showInfoWindowOnSelect: true,

map: map

}, "search");

var sources = s.get("sources");

//Push the sources used to search, by default the ArcGIS Online World geocoder is included.

sources.push({

featureLayer: new FeatureLayer("http://cop-gis4:6080/arcgis/rest/services/MOR/MOR_Cadastral_WGS1984/MapServer/7"),

searchFields: ["LOT_NO"],

exactMatch: false,

outFields: ["*"],

displayField: "LOT_NO",

name: "Lots - Lot Number",

placeholder: "Lot Number",

maxResults: 6,

maxSuggestions: 6,

//Create an InfoTemplate and include three fields

infoTemplate: new InfoTemplate("Lot Number", "Lot #: ${LOT_NO}Owner: ${OWNER}Title Link: <a href =${TITLE_LINK}>Click to open</a>"),

enableSuggestions: true,

minCharacters: 0

});

sources.push({

featureLayer: new FeatureLayer("http://cop-gis4:6080/arcgis/rest/services/MOR/MOR_Cadastral_WGS1984/MapServer/7"),

searchFields: ["OWNER"],

exactMatch: false,

outFields: ["*"],

displayField: "OWNER",

name: "Lots - Owner",

placeholder: "Owner",

maxResults: 6,

maxSuggestions: 6,

//Create an InfoTemplate and include three fields

infoTemplate: new InfoTemplate("Lot Number", "Lot #: ${LOT_NO}Owner: ${OWNER}Title Link: <a href =${TITLE_LINK}>Click to open</a>"),

enableSuggestions: true,

minCharacters: 0

});

//Set the sources above to the search widget

s.set("sources", sources);

s.startup();

map.on("load", mapReady);

function mapReady () {

map.on("click", executeIdentifyTask);

//create identify tasks and setup parameters

identifyTask = new IdentifyTask(layerCadastral);

identifyParams = new IdentifyParameters();

identifyParams.tolerance = 3;

identifyParams.returnGeometry = true;

identifyParams.layerIds = [7];

identifyParams.layerOption = IdentifyParameters.LAYER_OPTION_VISIBLE;

identifyParams.width = map.width;

identifyParams.height = map.height;

}

function executeIdentifyTask (event) {

identifyParams.geometry = event.mapPoint;

identifyParams.mapExtent = map.extent;

var deferred = identifyTask

.execute(identifyParams)

.addCallback(function (response) {

// response is an array of identify result objects

// Let's return an array of features.

return arrayUtils.map(response, function (result) {

var feature = result.feature;

var layerName = result.layerName;

feature.attributes.layerName = layerName;

if (layerName === 'Lots') {

var lotsTemplate = new InfoTemplate("",

"Lot #: ${LOT_NO} Owner: ${OWNER}");

feature.setInfoTemplate(lotsTemplate);

}

else if (layerName === 'Building Footprints') {

console.log(feature.attributes.PARCELID);

var buildingFootprintTemplate = new InfoTemplate("",

"Parcel ID: ${PARCELID}");

feature.setInfoTemplate(buildingFootprintTemplate);

}

return feature;

});

// InfoWindow expects an array of features from each deferred

// object that you pass. If the response from the task execution

// above is not an array of features, then you need to add a callback

// like the one above to post-process the response and return an

// array of features.

map.infoWindow.setFeatures([deferred]);

map.infoWindow.show(event.mapPoint);

}

});

Re: JS API 3.13 - IdentifyParameters undefined?

ChrisSergent — Thu, 11 Jun 2015 21:27:28 GMT

If you use Google Chrome, you can press F12 when you start up your application and then it usually tells you what it's looking for. Most of the time I have seen it as a typo or not declaring a variable with a var and then attempting to use it.

Re: JS API 3.13 - IdentifyParameters undefined?

LauraMiles1 — Thu, 11 Jun 2015 21:33:22 GMT

Hi Chris, I am using Chrome, and NetBeans. Using F12 unfortunately is not giving me any more enlightenment. I was able to get this esri sample working with my data but when I try to plop that into my existing map, I'm getting this error. I am fairly new to javascript and I think I've put something in the wrong order or something, but I don't know what.

Re: JS API 3.13 - IdentifyParameters undefined?

ChrisSergent — Thu, 11 Jun 2015 21:41:52 GMT

Is your site public or can you post your page here: JS Bin - Collaborative JavaScript Debugging ?

Re: JS API 3.13 - IdentifyParameters undefined?

LauraMiles1 — Thu, 11 Jun 2015 22:42:23 GMT

It's not public nor are my services, but I've posted it and switched back to the service in the ESRI demo: JS Bin - Collaborative JavaScript Debugging

Re: JS API 3.13 - IdentifyParameters undefined?

RobertScheitlin__GISP — Thu, 11 Jun 2015 23:28:06 GMT

Laura,

You were trying to set the IdentifyTasks constructor to a layer object when it needs a url string.

corrected line:

identifyTask = new IdentifyTask(layerCadastral.url);

Re: JS API 3.13 - IdentifyParameters undefined?

LauraMiles1 — Sat, 11 Dec 2021 09:52:12 GMT

Thanks Robert, that did it!

So in the ESRI sample, they had set the IdentifyTasks constructor the same way I had - I just switched out my layer for theirs. I'm guessing it is to do with the difference between how they added their layer to the map:

var parcelsURL = "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer";
        map.addLayer(new ArcGISDynamicMapServiceLayer(parcelsURL,
          { opacity: 0.55 }));

and how I added mine:

var layerCadastral = new ArcGISDynamicMapServiceLayer("http://cop-gis4:6080/arcgis/rest/services/MOR/MOR_Cadastral_WGS1984/MapServer",
            {
            "imageParameters": imageParameters
            });
           
          map.addLayer(layerCadastral);

When I came to the line in the sample

identifyTask = new IdentifyTask(parcelsURL);

I just switched out parcelsURL for my layerCadastral. But in the sample parcelsURL was a variable that held the url string, so I'm guessing that's why it didn't work for me. Thanks both Robert and Chris for your assistance.

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JS API 3.13 - IdentifyParameters undefined?

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Re: JS API 3.13 - IdentifyParameters undefined?

Re: JS API 3.13 - IdentifyParameters undefined?