topic Re: FeatureLayer TimeInfo in ArcGIS JavaScript Maps SDK Questions

FeatureLayer TimeInfo

IsraAlhamood — Wed, 23 Mar 2016 09:27:51 GMT

I'm currently working with a time aware layer and I need to get the timeInfo of that layer.

I'm using this method to get the time extent getTimeDefinition() and the result is undefined.

Although in the mapservice link I can find the TimeInfo section with all the details I need as below:

Time Info:

Start Time Field: WB_SPUD_DT

End Time Field: null

Track ID Field:

null

[1935/01/01 00:00:00 UTC, 2016/01/01 00:00:00 UTC]

N/A

Time Interval: 5

Time Interval Units: esriTimeUnitsYears

Has

Live Data: false

Use Time: true

Time Data Cumulative: false

Time Offset:

null

(null)

it just tells me it's undefined when I want to get it using this method. am I missing something?

please help!

Re: FeatureLayer TimeInfo

RobertScheitlin__GISP — Wed, 23 Mar 2016 12:11:54 GMT

Isra,

Have you set the layers setUseMapTime method. The layers getTimeDefinition will be undefined unless you have several things in play. Does your map have a timeExtent applied? To get the layers time info as you are seeing in the resy endpoint you use the layers timeInfo property.

Re: FeatureLayer TimeInfo

IsraAlhamood — Wed, 23 Mar 2016 15:18:37 GMT

Robert,

Yes it has a timeExtent applied but I can only retrieve it using Layer.timeInfo.timeExtent right? and since the timeInfo returns undefined then I can't get the timeExtent. when I use layer.timeInfo or layer.getTimeDefinition() it both returns undefined.

how do I use the setUseMapTime method?

Re: FeatureLayer TimeInfo

RobertScheitlin__GISP — Wed, 23 Mar 2016 15:55:37 GMT

Isra,

Just do:

layer.setUseMapTime (true);

Re: FeatureLayer TimeInfo

IsraAlhamood — Sat, 26 Mar 2016 17:39:06 GMT

Hey Robert,

thank you for the prompt responses

I tried that but still returns an undefined timeInfo

Re: FeatureLayer TimeInfo

RobertScheitlin__GISP — Sun, 12 Dec 2021 02:48:07 GMT

Isra,

Are you waiting for the layer to load? Here is a sample:

<!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></title>

    <link rel="stylesheet" href="https://community.esri.com//js.arcgis.com/3.16/dijit/themes/tundra/tundra.css">
    <link rel="stylesheet" href="https://community.esri.com//js.arcgis.com/3.16/esri/css/esri.css">

    <style>
      html, body, #map {
        height: 100%; width: 100%; margin: 0; padding: 0;
      }
      #loading {
        width:100%;
        position:absolute;
        height:400px;
        background:transparent url("https://dl.dropboxusercontent.com/u/2654618/ajax-gear.gif") center no-repeat;
        z-index:100;
      }
    </style>

    <script src="//js.arcgis.com/3.16/"></script>
    <script>
      var map;

      require([
        "esri/map", "esri/InfoTemplate",
        "esri/layers/FeatureLayer",
        "dojo/parser", "dojo/dom-construct", "esri/TimeExtent",
        "dijit/layout/BorderContainer", "dijit/layout/ContentPane",
        "dojo/domReady!"
      ], function(
        Map, InfoTemplate,
        FeatureLayer,
        parser, domConstruct, TimeExtent
      ) {
          parser.parse();

          map = new Map("mapDiv", {
            basemap: "oceans",
            center: [-100, 40],
            zoom: 4
          });

          // feature service with U2 concerts from 1980 - 2011
          var featuresUrl = "https://services.arcgis.com/V6ZHFr6zdgNZuVG0/ArcGIS/rest/services/U2/FeatureServer/0";
          var layer = new FeatureLayer(featuresUrl, {
            id: "u2",
            infoTemplate: new InfoTemplate(
              "U2 Concerts:  1980  2011",
              "Date:  ${Date:DateFormat(selector: 'date', fullYear: true)}<br>" +
              "Venue:  ${Venue}, ${City}, ${State}<br>" +
              "Tour:  ${Tour}"
            ),
            mode: FeatureLayer.MODE_SNAPSHOT,
            outFields: ["*"]
          });
          console.info(layer.timeInfo);  //This one will be undefined.
          //layer.setUseMapTime(true);

          var layerUpdateEnd = layer.on("update-end", function() {
            console.info(layer.timeInfo); //This one will have an actual value because the layer is loaded.
            layerUpdateEnd.remove();
            // var timeExtent = new TimeExtent();
            // timeExtent.startTime = new Date("1/1/1989 UTC");
            // map.setTimeExtent(timeExtent);
            domConstruct.destroy("loading");
          });

          map.addLayer(layer);
        }
      );
    </script>
  </head>
  <body class="tundra">
    <div class="demoLayout" style="height: 100%; width: 100%"
         data-dojo-type="dijit/layout/BorderContainer"
         data-dojo-props="design: 'headline'">
        <div class="centerPanel"
             data-dojo-type="dijit/layout/ContentPane"
             data-dojo-props="region: 'center'">
          <div id="mapDiv"
            data-dojo-type="dijit/layout/ContentPane"
            data-dojo-props="region:'center'">
            <div id="loading"></div>
          </div>
        </div>
    </div>
  </body>
</html>