histogram scale info doesn't match data

ElizabethAdams — Mon, 05 May 2014 14:00:49 GMT

hi all,

I am working on using a histogram time slider to display oil and gas wells permitted in the state of KY. I have limited the amount of data displayed to the last 4 years for a faster download, but have provided a query builder for users that want older data. My problem is that the scale doesn't match the data displayed. Example (I'm displaying data form 1/1/2010 to today but the scale says 12/12/1948 to 10/22/1952 and 1889 and 1890). Can someone help explain how I can format the scale info correctly. I would like each month to be from the 1st to the 30th/31st and not start randomly in the middle, and of course match the data displayed.

Here's a picture of the Histogram

[ATTACH=CONFIG]33586[/ATTACH]

and here's my code I tried to limit it to just the Histogram code

<style>     

      #histogram-container text, #histogram-range,
      #scale-bar-left text, #scale-bar-right text {
        font-family: sans-serif;
  
      }
      #histogram-timeslider-dijit #focusTip {
        font-family: sans-serif;
  
  
      }

</style>

  <script src="//js.arcgis.com/3.6/"></script>
  <script type="text/javascript" language="javascript">

  var OGWells = new FeatureLayer("http://kgs.uky.edu/arcgis/rest/services/KYOilGas/KYOilGasWells_static_time/MapServer/0",
  {id:"OGWells",
   mode: FeatureLayer.MODE_SNAPSHOT,
   outFields: ["*"]
  }); 
OGWells.setDefinitionExpression("date_permit_issued > date '1/1/2010'");

   map.addLayers([OGWells]); 
    
   
    dojo.connect(map, 'onLoad', function (theMap) {
        //resize the map when the browser resizes
        dojo.connect(dijit.byId('map'), 'resize', map, map.resize);
      });
  
       var layerUpdateEnd = OGWells.on("update-end", function() {
            layerUpdateEnd.remove();
            var sliderElem = domConstruct.create("div", {
              id: "timeSlider_"+ map.id, 
              style: "margin-bottom:10px; bottom:33px"
            }, "bottom-div");
            var sliderParams = {
              color: "#005DAB",
        dateFormat: "DateFormat(selector: 'date_permit_issued', fullYear: true)",
              layers : [OGWells],
              mode: "show_all",
              timeInterval: "esriTimeUnitsMonths"
            };
 
            var slider = new HistogramTimeSlider(sliderParams, sliderElem); 
     map.setTimeSlider(slider); 
   
    
            domConstruct.destroy("loading");
   
          }); 
</script>
<body>

        <div style="position:absolute; font-family:Veranda,sans-serif; margin-left:35%; padding-top: 5px";>Drilled Oil and Gas Wells <span id="daterange">2010 to Present Day</span> (Permitted date)</div>
  <div id="timeSlider_mapDiv" class="histogram-timeslider esriTimeSlider" widgetid="timeSlider_mapDiv">
  <div id="histogram-timeslider-dijit" style="height:50px" >
  
 </body>

Thanks for your help!

Re: histogram scale info doesn't match data

JasonTipton — Tue, 14 Oct 2014 13:56:54 GMT

Having similar issue. Mine is incidents w/in the past 24 hours with a given start/end time. I am trying to use the histogram time slider, but I have 2 issues:

1) The time starts at 12:12 - 1:12 (instead of 12:00 - 1:00)

2) The data counts don't match the data displayed.

Ex: You might move the slider to show all data from 3:12 - 4:12 AM. Half the points have a start time of 10 PM or 7 AM or some other random time. Also, when I look at the raw data, the data counts don't really add up anyway.

One thing you might try is from the layer in ArcMap. Get the Properties > Time and hit calculate for "Layer Time Extent". I don't know if this helps, but I did have a problem with the slider showing the wrong dates, and that may have helped.

topic histogram scale info doesn't match data in ArcGIS JavaScript Maps SDK Questions

histogram scale info doesn't match data

Re: histogram scale info doesn't match data