topic IdentifyTask returns empty array in ArcGIS JavaScript Maps SDK Questions

IdentifyTask returns empty array

Anonymous User — Wed, 25 May 2022 09:19:01 GMT

I am trying to get the graphics & objectid of a point on the map and am using the identifyTask. I am following this example. This is my code

this.map.on("click", function (e) { _this.map.graphics.clear(); identifyTask = new IdentifyTask("https://server/arcgis/rest/services/MUNICIPALITY_BUNDLE/ZK_KATASTAR_NA_ZELENILO/MapServer"); identifyParams = new IdentifyParameters(); identifyParams.tolerance = 3; identifyParams.returnGeometry = true; identifyParams.layerIds = [0, 2]; identifyParams.layerOption = IdentifyParameters.LAYER_OPTION_ALL; identifyParams.width = _this.map.width; identifyParams.height = _this.map.height; identifyParams.geometry = e.mapPoint; identifyParams.mapExtent = _this.map.extent; console.log("identifyParams", identifyParams); identifyTask.execute(identifyParams, function (idResults) { console.log("test", idResults); }); });

idResults returns an empty array and I am unsure as to why.

Any ideas or pointers as to what I am doing wrong?

Re: IdentifyTask returns empty array

KenBuja — Wed, 25 May 2022 13:22:59 GMT

Try setting the spatial reference to see if that makes any difference.

identifyParams.spatialReference = _this.map.spatialReference;

Re: IdentifyTask returns empty array

Anonymous User — Wed, 25 May 2022 14:43:50 GMT

It's still the same.

Re: IdentifyTask returns empty array

KenBuja — Wed, 25 May 2022 15:30:05 GMT

Are the layerIds you're setting correct? Can you share the URL you're using to verify the process?

Re: IdentifyTask returns empty array

Anonymous User — Wed, 25 May 2022 18:02:47 GMT

@KenBuja

Here are the layers

Re: IdentifyTask returns empty array

KenBuja — Wed, 25 May 2022 20:17:27 GMT

Then you'll want to modify this line since there is no layer 0. Your IdentifyTask would only include what is found is Layer 2. Include the layer ids you want to identify.

identifyParams.layerIds = [0, 2];

Re: IdentifyTask returns empty array

Anonymous User — Wed, 25 May 2022 21:15:13 GMT

identifyParams.layerIds = [1]; identifyParams.layerIds = [1, 2];

I have made both of these modifications. For a fact, I know that the layer 1 has records in it and it still returns an empty array.

Re: IdentifyTask returns empty array

Anonymous User — Wed, 25 May 2022 21:17:30 GMT

Whether I include all of the layers as above, or just one single layer it still returns an empty array.

Re: IdentifyTask returns empty array

RobertMEIER — Mon, 13 Jun 2022 18:54:44 GMT

try changing you layerOption value, the documentation says it should be a string, either "top", "visible" or "all".