topic Re: IdentifyParameters fail in ArcGIS JavaScript Maps SDK Questions

IdentifyParameters fail

NadirHussain — Wed, 17 Sep 2014 16:24:53 GMT

identifyParams.tolerance = 3;

identifyParams.returnGeometry = true;

identifyParams.layerIds = [0, 1, 2, 3, 4, 5];

identifyParams.geometry = point;

identifyParams.layerOption = IdentifyParameters.LAYER_OPTION_ALL;

identifyParams.width = map.width;

the redline fail.It give the message.cannot read property 'geometry' undefined .

please what should be the reason.Thanks in advance.

Re: IdentifyParameters fail

KenBuja — Sat, 11 Dec 2021 07:15:06 GMT

In your code, "point" is a variable. How have you created it?

This is how it's done in a sample

map.on("click", doIdentify);

function doIdentify (event) {
            map.graphics.clear();
            identifyParams.geometry = event.mapPoint;
            identifyParams.mapExtent = map.extent;
            identifyTask.execute(identifyParams, function (idResults) {
              addToMap(idResults, event);
            });
          }

Re: IdentifyParameters fail

NadirHussain — Thu, 18 Sep 2014 08:04:13 GMT

function myClickHandler(evt) {

try {

map.graphics.clear();

if (identfyFlag == 1) {

var point = evt.mapPoint;

SMS.setStyle(SimpleMarkerSymbol.STYLE_CIRCLE);

SMS.setSize(12);

SMS.setColor(new esri.Color([255, 0, 0, 0.5]));

identifyTask = new IdentifyTask("http://dell-pc/ArcGIS/rest/services/Sirens/MapServer");

identifyParams = new IdentifyParameters();

identifyParams.tolerance = 3;

identifyParams.returnGeometry = true;

identifyParams.layerIds = [0, 1, 2, 3, 4, 5];

if (identifyParams != null) {

identifyParams.Geometry = point;

identifyParams.layerOption = IdentifyParameters.LAYER_OPTION_ALL;

identifyParams.width = map.width;

identifyParams.height = map.height;

}

var pointGraphic = new Graphic(point, SMS);

map.graphics.add(pointGraphic);

idResults = new IdentifyResult();

processIdentifyResults(point)

}

} //try

catch (err) {

txt = "There was an error on this page.\n\n";

txt += "Error description: " + err.message + "\n\n";

txt += "Click OK to continue.\n\n";

alert(txt);

}

Dear ken thanks for reply. my complete code is above.i passed the event mapPoint to the point variable.

Re: IdentifyParameters fail

KenBuja — Thu, 18 Sep 2014 12:26:22 GMT

Remember that Javascript is case sensitive. The line

identifyParams.Geometry = point;

should be

identifyParams.geometry = point;

Why are you using this if statement?

if (identifyParams != null) {

The way your code is written, this will always be true

Re: IdentifyParameters fail

NadirHussain — Fri, 19 Sep 2014 09:34:15 GMT

function myClickHandler(evt) {

try {

map.graphics.clear();

if (identfyFlag == 1) {

var point = evt.mapPoint;

SMS.setStyle(SimpleMarkerSymbol.STYLE_CIRCLE);

SMS.setSize(12);

SMS.setColor(new esri.Color([255, 0, 0, 0.5]));

identifyTask = new IdentifyTask("http://dell-pc/ArcGIS/rest/services/Sirens/MapServer");

identifyParams = new IdentifyParameters();

identifyParams.tolerance = 3;

identifyParams.returnGeometry = true;

identifyParams.layerIds = [0, 1, 2, 3, 4, 5];

identifyParams.geometry = point;

identifyParams.layerOption = IdentifyParameters.LAYER_OPTION_ALL;

identifyParams.width = map.width;

identifyParams.height = map.height;

var pointGraphic = new Graphic(point, SMS);

map.graphics.add(pointGraphic);

idResults = new IdentifyResult();

processIdentifyResults(point)

}//if

} //try

catch (err) {

txt = "There was an error on this page.\n\n";

txt += "Error description: " + err.message + "\n\n";

txt += "Click OK to continue.\n\n";

alert(txt);

}

dear ken,

i update the code.but same error is coming.i am confused.please help