topic map.setExtent(extent,true) not working on webmaps. in ArcGIS JavaScript Maps SDK Questions

map.setExtent(extent,true) not working on webmaps.

El_BoukfaouiReda — Tue, 28 Oct 2014 12:35:06 GMT

Hi everyone,

I have the following issue :

I don't get to set the extent of my webmap.

Please find below the code used.

I tried many ways: using graphics, feature layers, document element,.

The code does a spatial selection based on a dropdownlist value:

Please kindly advice where could be the error.

var mapid = "bd44b693be444c3a9a4a620661e7ce66";

var map = new esri.Map("mapDiv");

var mapDeferred = esri.arcgis.utils.createMap(mapid, "mapDiv").then(function(response)

{

map = response.map;

//Define a feature layer

var ZonesQueryFeatureLayer = new esri.layers.FeatureLayer("http://10.10.1.108:6080/arcgis/rest/services/ZS_MapDoc/FeatureServer/5", {

id: 'ZonesQueryFeatureLayer',

mode: esri.layers.FeatureLayer.MODE_SELECTION,

outFields: ["*"]

});

response.map.addLayer(TCAZonesQueryFeatureLayer);

//connect event to onchange of a zone selection from the dropdownlist(Ref. ResultQID)

dojo.connect(dojo.byId('#ResultQID'), "onchange", function(evt) {

console.log("option changed to: " + evt.target.value);

ZonesQueryFeatureLayer.clearSelection();

var selectQuery = new esri.tasks.Query();

selectQuery.where = "Zone_Name LIKE '"+ evt.target.value +"'";

selectQuery.outFields = ["*"];

ZonesQueryFeatureLayer.selectFeatures(selectQuery, esri.layers.FeatureLayer.SELECTION_NEW, function (features) {

//after highlighting feature (or not), zoom to feature to show detailed map

if (features !== undefined && features.length !== 0) {

//should be only one result returned, so using first array value [0]

ZonesQueryFeatureLayer.getMap().setExtent(features[0].geometry.getExtent(), true);

// I also tried:

//map.setExtent(features[0].geometry.getExtent(), true);

//mapDeferred.setExtent(features[0].geometry.getExtent(), true);

//document.getElementById("mapDiv").setExtent(features[0].geometry.getExtent(), true);

}

else {

alert("zone not found/Please select a proper Zone.")

}

});

dojo.stopEvent(evt);

});

}

Re: map.setExtent(extent,true) not working on webmaps.

RobertScheitlin__GISP — Tue, 28 Oct 2014 12:54:21 GMT

Try this:

            ZonesQueryFeatureLayer.selectFeatures(selectQuery, esri.layers.FeatureLayer.SELECTION_NEW, function (features) {
               //after highlighting feature (or not), zoom to feature to show detailed map
                if (features !== undefined && features.length !== 0) {
          map.setExtent(graphicsUtils.graphicsExtent(ZonesQueryFeatureLayer.getSelectedFeatures()), true);
                } else {
                  alert("zone not found/Please select a proper Zone.")
                }
            });

Re: map.setExtent(extent,true) not working on webmaps.

El_BoukfaouiReda — Tue, 28 Oct 2014 14:39:21 GMT

Here is what I get after modifying the code to this:

//map.setExtent(esri.graphicsUtils.graphicsExtent(ZonesQueryFeatureLayer.getSelectedFeatures()), true);

// I also tried:

//map.setExtent(esri.GraphicsUtils.graphicsExtent(ZonesQueryFeatureLayer.getSelectedFeatures()), true);

// I am not using a dojo.require so I prefer working with the objects as is...

Please help.

Re: map.setExtent(extent,true) not working on webmaps.

RobertScheitlin__GISP — Tue, 28 Oct 2014 14:50:05 GMT

Did you add the require for graphicsUtils?

Re: map.setExtent(extent,true) not working on webmaps.

El_BoukfaouiReda — Tue, 28 Oct 2014 15:37:03 GMT

My objects are getting notified while calling them properly (esri.graphicsUtils or esri.Map,...)

dojo.require("esri.graphicsUtils","esri.graphicsExtent");

console.log("dojo.require passed successfully");

console.log("I will zoom to extent");

map.setExtent(esri.GraphicsUtils.graphicsExtent(ZonesQueryFeatureLayer.getSelectedFeatures()), true);

console.log("Supposebly Zoomed to extent");

This is what I am getting this time:

This is the same error but the map.setExtent didn't pass !

Do you mind taking a look on the code directly? I could arrange a remote session...

Re: map.setExtent(extent,true) not working on webmaps.

RobertScheitlin__GISP — Tue, 28 Oct 2014 17:28:52 GMT

Here is a sample that demonstrates it working. It seems that you are using Legacy coding practices. This sample is using AMD coding:

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
    <title>Create web map from id</title>

    <link rel="stylesheet" href="http://js.arcgis.com/3.11/dijit/themes/claro/claro.css">
    <link rel="stylesheet" href="http://js.arcgis.com/3.11/esri/css/esri.css">
    <link rel="stylesheet" href="css/layout.css">


    <script src="http://js.arcgis.com/3.11/"></script>
    <script>
      var QueryFeatureLayer, map;
      require([
        "dojo/parser",
        "dojo/ready",
        "dijit/layout/BorderContainer",
        "dijit/layout/ContentPane",
        "dojo/dom",
        "esri/map",
        "esri/urlUtils",
        "esri/arcgis/utils",
        "esri/dijit/Legend",
        "esri/dijit/Scalebar",
        "esri/tasks/query",
        "esri/graphicsUtils",
        "esri/layers/FeatureLayer",
        "dojo/domReady!"
      ], function(
        parser,
        ready,
        BorderContainer,
        ContentPane,
        dom,
        Map,
        urlUtils,
        arcgisUtils,
        Legend,
        Scalebar,
        Query,
        graphicsUtils,
        FeatureLayer
      ) {
        ready(function(){

        parser.parse();

        arcgisUtils.createMap("4778fee6371d4e83a22786029f30c7e1","map").then(function(response){
          //update the app
          dom.byId("title").innerHTML = response.itemInfo.item.title;
          dom.byId("subtitle").innerHTML = response.itemInfo.item.snippet;

          map = response.map;

          //add the scalebar
          var scalebar = new Scalebar({
            map: map,
            scalebarUnit: "english"
          });
         
          //Define a feature layer
          QueryFeatureLayer = new FeatureLayer("http://server.arcgisonline.com/arcgis/rest/services/Demographics/USA_Tapestry/MapServer/3", {
            id: 'QueryFeatureLayer',
            mode: esri.layers.FeatureLayer.MODE_SELECTION,
            outFields: ["*"]
          });
          map.on('layer-add', function(evt){
            var selectQuery = new Query();
            selectQuery.where = "ST_ABBREV = 'AL' AND NAME='Calhoun County'";
            selectQuery.outFields = ["*"];
            QueryFeatureLayer.selectFeatures(selectQuery, FeatureLayer.SELECTION_NEW, function (features) {
              if (features !== undefined && features.length !== 0) { 
                map.setExtent(graphicsUtils.graphicsExtent(QueryFeatureLayer.getSelectedFeatures()), true); 
              } else { 
                alert("county not found/Please select a proper county.") 
              }
            });
          });
         
          map.addLayer(QueryFeatureLayer);
         
          //add the legend. Note that we use the utility method getLegendLayers to get
          //the layers to display in the legend from the createMap response.
          var legendLayers = arcgisUtils.getLegendLayers(response);
          var legendDijit = new Legend({
            map: map,
            layerInfos: legendLayers
          },"legend");
          legendDijit.startup();
        });
        });
      });
    </script>
  </head>

  <body class="claro">
    <div id="mainWindow" data-dojo-type="dijit/layout/BorderContainer" data-dojo-props="design:'headline'" style="width:100%; height:100%;">
      <div id="header" class="shadow roundedCorners" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'top'">
        <div id="title"></div>
        <div id="subtitle"></div>
      </div>
      <div id="map" class="roundedCorners shadow" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'center'"></div>
      <div id="rightPane" class="roundedCorners shadow" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'right'" >
        <div id="legend"></div>
      </div>
    </div>
  </body>
</html>