Address Locator error on Online Geocode service

[MuhammadAfzal]

I am using my owned prepared locator Geocode service (http://maps.dhalahore.org/ArcGIS/rest/services/DHAMAP/AddressLocator/GeocodeServer) in Geocode online (arcgis-appstudio-samples-master).

Working perfect on Reverse Geocoding but giving Error (Unable to complete operation. No Address Found) when i search any address in search box.

Here code:

import QtQuick 2.3
import QtQuick.Controls 1.2
import QtQuick.Dialogs 1.2
import QtPositioning 5.3

import ArcGIS.AppFramework 1.0
import ArcGIS.AppFramework.Controls 1.0
import ArcGIS.AppFramework.Runtime 1.0
import ArcGIS.AppFramework.Runtime.Controls 1.0
import ArcGIS.AppFramework.Runtime 1.0

App {
    id: app
    width: 800
    height: 532

    property double scaleFactor: AppFramework.displayScaleFactor
    property string errorMsg

    Map {
        id: mainMap
        anchors.fill: parent
        extent: usExtent
        focus: true

        ArcGISTiledMapServiceLayer {
            url: "http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"
        }

        SimpleMarkerSymbol {
            id: simpleMarkerSymbolLocation
            color: "red"
            style: Enums.SimpleMarkerSymbolStyleCross
            size: 10
        }

        SimpleMarkerSymbol {
            id: simpleMarkerSymbolReverseLocation
            color: "blue"
            style: Enums.SimpleMarkerSymbolStyleDiamond
            size: 10
        }

        GraphicsLayer {
            id: graphicsLayerGeocode
        }

        GraphicsLayer {
            id: graphicsLayerReverse
        }

        Graphic {
            id: locationGraphicReverse
            symbol: simpleMarkerSymbolReverseLocation
        }

        Graphic {
            id: locationGraphicGeocode
            symbol: simpleMarkerSymbolLocation
        }

        Envelope {
            id: usExtent
            xMax: -15000000
            yMax: 2000000
            xMin: -7000000
            yMin: 8000000
            spatialReference: mainMap.spatialReference
        }

        onMouseClicked: {
            graphicsLayerReverse.removeAllGraphics();
            var graphic1 = locationGraphicReverse.clone();
            graphic1.geometry = mouse.mapPoint;
            graphicsLayerReverse.addGraphic(graphic1);
            locator.reverseGeocode(mouse.mapPoint, 500, mainMap.spatialReference);
        }
    }

    ServiceLocator {
        id: locator
        url: "http://maps.dhalahore.org/ArcGIS/rest/services/DHAMAP/AddressLocator/GeocodeServer"

        onFindStatusChanged: {
            if (findStatus === Enums.FindStatusCompleted) {
                progressBar.visible = false;
                if (findResults.length < 1) {
                    showError("No address Found");
                } else {
                    for (var i = 0; i < findResults.length; i++) {
                        var result = findResults;
                        var graphic = locationGraphicGeocode.clone()
                        graphic.geometry = result.location;
                        graphicsLayerGeocode.addGraphic(graphic);
                    }
                    mainMap.zoomTo(graphic.geometry);
                }
            } else if (findStatus === Enums.FindStatusErrored) {
                progressBar.visible = false;
                showError(findError.message + "\nNo Address Found");
            }
        }

        onReverseGeocodeStatusChanged: {
            if (reverseGeocodeStatus === Enums.ReverseGeocodeStatusCompleted) {
                searchBox.descriptionTextVisibility = true;
                searchBox.descriptionTextInput = "Address: "
                var address = reverseGeocodeResult.addressFields["Address"];
                var city = reverseGeocodeResult.addressFields["City"];
                var state = reverseGeocodeResult.addressFields["Region"];
                var zip = reverseGeocodeResult.addressFields["Postal"];
                searchBox.descriptionTextInput += address + " " + city + ", " + state + " " + zip;
            } else if (reverseGeocodeStatus === Enums.ReverseGeocodeStatusErrored) {
                showError(reverseGeocodeError.message + "\nNo Address Found");
                searchBox.descriptionTextVisibility = false;
            }
        }
    }

    LocatorFindParameters {
        id: findTextParams
        text: searchBox.searchTextInput
        outSR: mainMap.spatialReference
        maxLocations: 1
        searchExtent: usExtent
        sourceCountry: "US"
    }

    /*-----------------------------------------------------------------------------------------------------------------------
         Search button / box
         ---------------------------------------------------------------------------------------------------------------------*/

    SearchBox {
        id: searchBox

        anchors {
            left: parent.left
            top: parent.top
            margins: 20 * scaleFactor
        }

        onSearch: {
            findTextParams.text = searchBox.searchTextInput
            graphicsLayerGeocode.removeAllGraphics();
            locator.find(findTextParams);
            progressBar.visible = true;
        }

        onClear: {
            mainMap.extent = usExtent;
            mainMap.mapRotation = 0;
            graphicsLayerGeocode.removeAllGraphics();
            graphicsLayerReverse.removeAllGraphics();
            searchBox.descriptionTextInput = "";
            searchBox.searchTextInput.focus = true;
            searchBox.descriptionTextVisibility = false;
            searchBox.searchTextInput = "";
        }

        Keys.onReturnPressed: {
            findTextParams.text = searchBox.searchTextInput
            graphicsLayerGeocode.removeAllGraphics();
            locator.find(findTextParams);
            progressBar.visible = true;
            Qt.inputMethod.hide();
        }
    }

    Row {
        anchors {
            horizontalCenter: parent.horizontalCenter
            bottom: mainMap.bottom
            bottomMargin: 5 * scaleFactor
        }

        ProgressBar {
            id: progressBar
            indeterminate: true
            visible: false
        }
    }

    MessageDialog {
        id: messageDialog
        title: "Error"
        icon: StandardIcon.Warning
        modality: Qt.WindowModal
        standardButtons: StandardButton.Ok
        text: errorMsg
    }

    Rectangle {
        id: rectangleBorder
        anchors.fill: parent
        color: "transparent"
        border {
            width: 0.5 * scaleFactor
            color: "black"
        }
    }

    function showError(errorString) {
        errorMsg = errorString;
        messageDialog.visible = true;
    }
}

Any Info would be greatly appreciated.

Cheers,

"Tasadduq Hussain" 

[nakulmanocha · Accepted solution]

Hi there,

There are couple of issues here, directly related to your Geocoding service. 

1) Your geocoding service is based on server 10.0 and hence only supports FindAddressCandidates. Therefore you should be using 
 locator.geocode() method to perform Geocoding. This method calls the FindAddressCandidates operation

2) Based on your service address field. It currently takes Single Address labelled as "SingleKey". Hence you should only use that as your Address field parameter.

I have added these suggestions in your code and pasted below for your reference.

I hope this helps.

Thank you.
Nakul





App {

    id: app

    width: 800

    height: 532

    property double scaleFactor: AppFramework.displayScaleFactor

    property string errorMsg

    Map {

        id: mainMap

        anchors.fill: parent

        extent: usExtent

        focus: true

        ArcGISTiledMapServiceLayer {

            url: "http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"

        }

        SimpleMarkerSymbol {

            id: simpleMarkerSymbolLocation

            color: "red"

            style: Enums.SimpleMarkerSymbolStyleCross

            size: 10

        }

        SimpleMarkerSymbol {

            id: simpleMarkerSymbolReverseLocation

            color: "blue"

            style: Enums.SimpleMarkerSymbolStyleDiamond

            size: 10

        }

        GraphicsLayer {

            id: graphicsLayerGeocode

        }

        GraphicsLayer {

            id: graphicsLayerReverse

        }

        Graphic {

            id: locationGraphicReverse

            symbol: simpleMarkerSymbolReverseLocation

        }

        Graphic {

            id: locationGraphicGeocode

            symbol: simpleMarkerSymbolLocation

        }

        Envelope {

            id: usExtent

            xMax:  8380686

            yMax: 3594113

            xMin:  8180686

            yMin: 3794113

            spatialReference: mainMap.spatialReference

        }

        onMouseClicked: {

            graphicsLayerReverse.removeAllGraphics();

            var graphic1 = locationGraphicReverse.clone();

            graphicsLayerReverse.addGraphic(graphic1);

             graphic1.geometry =  mouse.mapPoint

            locator.reverseGeocode(mouse.mapPoint, 500, mainMap.spatialReference);

        }

    }

    ServiceLocator {

        id: locator

        url: "http://maps.dhalahore.org/ArcGIS/rest/services/DHAMAP/AddressLocator/GeocodeServer"

        onGeocodeStatusChanged: {

            console.log("geocode address found")

            if(geocodeStatus === Enums.GeocodeStatusCompleted){

                 progressBar.visible = false;

                if(geocodeResults.length < 1){

                    showError("No address Found");

                }

                else {

                    for (var i = 0; i < geocodeResults.length; i++) {

                        var result = geocodeResults[i];

                        var graphic = locationGraphicGeocode.clone()

                        graphic.geometry = result.location;

                        graphicsLayerGeocode.addGraphic(graphic);

                    }

                    mainMap.zoomTo(graphic.geometry);

                }

            }else if (geocodeStatus === Enums.GeocodeStatusErrored) {

                progressBar.visible = false;

                showError(geocodeError.message + "\n No Address Found");

            }

        }

        onReverseGeocodeStatusChanged: {

            if (reverseGeocodeStatus === Enums.ReverseGeocodeStatusCompleted) {

                searchBox.descriptionTextVisibility = true;

                searchBox.descriptionTextInput = "Address: "

                var address = reverseGeocodeResult.addressFields["SingleKey"];

            } else if (reverseGeocodeStatus === Enums.ReverseGeocodeStatusErrored) {

                showError(reverseGeocodeError.message + "\nNo Address Found");

                searchBox.descriptionTextVisibility = false;

            }

        }

    }

    /*-----------------------------------------------------------------------------------------------------------------------

         Search button / box

         ---------------------------------------------------------------------------------------------------------------------*/

    SearchBox {

        id: searchBox

        anchors {

            left: parent.left

            top: parent.top

            margins: 20 * scaleFactor

        }

        onSearch: {           

            graphicsLayerGeocode.removeAllGraphics();

            var add = {"SingleKey": searchBox.searchTextInput}

            locator.geocode(add,"*",mainMap.spatialReference)

            progressBar.visible = true;

        }

        onClear: {

            mainMap.extent = usExtent;

            mainMap.mapRotation = 0;

            graphicsLayerGeocode.removeAllGraphics();

            graphicsLayerReverse.removeAllGraphics();

            searchBox.descriptionTextInput = "";

            searchBox.searchTextInput.focus = true;

            searchBox.descriptionTextVisibility = false;

            searchBox.searchTextInput = "";

        }

        Keys.onReturnPressed: {

            graphicsLayerGeocode.removeAllGraphics();

            var add = {"SingleKey": searchBox.searchTextInput}

            locator.geocode(add,"*",mainMap.spatialReference)

            progressBar.visible = true;

            Qt.inputMethod.hide();

        }

    }

    Row {

        anchors {

            horizontalCenter: parent.horizontalCenter

            bottom: mainMap.bottom

            bottomMargin: 5 * scaleFactor

        }

        ProgressBar {

            id: progressBar

            indeterminate: true

            visible: false

        }

    }

    MessageDialog {

        id: messageDialog

        title: "Error"

        icon: StandardIcon.Warning

        modality: Qt.WindowModal

        standardButtons: StandardButton.Ok

        text: errorMsg

    }

    Rectangle {

        id: rectangleBorder

        anchors.fill: parent

        color: "transparent"

        border {

            width: 0.5 * scaleFactor

            color: "black"

        }

    }

    function showError(errorString) {

        errorMsg = errorString;

        messageDialog.visible = true;

    }

}

[MuhammadAfzal]

I am very Grateful Nakul Manocha.

It's working perfect.

One question please "On performing search it's find all  addresses (E.g When I search 5 G 82 ,it's highlight 5 G 82,5 G 8/2 and 5 J 82) but I need when i write specific address it's only find that particular address.

It would be greatly appreciated.

Cheers,

"Tasadduq Hussain"  

[nakulmanocha]

If you want only one address then you check for the score condition within the results and don't include if the score is not 100. I see based on your Geocode service I am getting lots of results with score >90. Hence I would recommend (

result.score <100) then it will include only one record.

http://maps.dhalahore.org/ArcGIS/rest/services/DHAMAP/AddressLocator/GeocodeServer/findAddressCandid... 

else {
                    for (var i = 0; i < geocodeResults.length; i++) {

                        var result = geocodeResults[i];
                        if (result.score <100)
                            return;
                        var graphic = locationGraphicGeocode.clone()

                        graphic.geometry = result.location;

                        graphicsLayerGeocode.addGraphic(graphic);

                    }

Hope this helps,

Nakul

[AbdulMannan]

I am very Grateful Nakul Manocha.

It's great idea.

 I will putt condition on my matching score based on my Geocode Service.

I will replay you after putting condition..

Again I am very thankful to you.

Cheers,

"Tasadduq Hussain"

[AbdulMannan]

Very Grateful Nakul Manocha.

 I  putt condition

if (result.score <100)
return;

I working perfect and find only one address but it does not Zoom to that particular address.

Please see the screen shot.

It would be greatly appreciated.

Cheers,

 "Tasadduq Hussain"

[nakulmanocha]

That is expected as the single point geometry doesn't have an extent ( as min x,y and max x,y has same values). What you would have to do is to create a virtual extent around the point geometry and then zoom to that extent. 

Another way is to create a buffer geometry (invisible- don't add it as graphic) around that point and then zoom to that buffer geometry.

Nakul

[AbdulMannan]

I am very Grateful Nakul Manocha.

I create Locator with Minimum Match/Candidate Score 100.

Now,it's working perfect and find only one address and also Zoom to that particular address.

Again I am very thankful to you.

 Cheers,

"Tasadduq Hussain"