topic Re: DynamicMapServiceLayer group set minScale Javascript 3.16 in ArcGIS JavaScript Maps SDK Questions

DynamicMapServiceLayer group set minScale Javascript 3.16

JimBridge — Mon, 25 Jul 2016 19:15:18 GMT

I'm creating a arcGisDynamicMapServiceLayer group. One of the layers has a minScale I need to change. I can't seem to change it. I'd be happy if I could set min layer for it or all the layers but setMinScale doesn't seem to change anything.

Re: DynamicMapServiceLayer group set minScale Javascript 3.16

RobertScheitlin__GISP — Mon, 25 Jul 2016 21:22:30 GMT

Jim,

Can you show the code that you are trying?

Re: DynamicMapServiceLayer group set minScale Javascript 3.16

JimBridge — Tue, 26 Jul 2016 13:13:35 GMT

I've tried a few ways to do this, this is a combination of them.

I tried setting it in the creation of LinkedMap as a Image parameter.

Then I tried setting the scale with setscaleRange and setMinScale.

The map has 10 layers and only some have a minscale. With the screen I'm working on its fine if I could reset the minscale on all of them.

   //attempted min scale as imageParameters
   var imageParameters = new ImageParameters();
                        imageParameters.minScale = 0;

   // create map with all layers based on map service
   LinkedMap = new esri.layers.ArcGISDynamicMapServiceLayer(mapServices.MapService, {
                            "id": "baseLayer",
                            "requestTimeout": 5000,
                            "attribution": false,
                            "imageParameters": imageParameters
                        });

//this code is in the load event of LinkedMap

// Layer id 2 of 10 has a minscale and isn't displaying.

   // when linked map loaded
   //LinkedMap.setScaleRange(0, 0);
   LinkedMap.setMinScale(0);

Re: DynamicMapServiceLayer group set minScale Javascript 3.16

RobertScheitlin__GISP — Sun, 12 Dec 2021 02:12:01 GMT

Jim,

Here is a sample that I added setMinScale to a ArcGISDynamicMapServiceLayer and it works fine.

The scale is set to the oilandgas layer and it will not show in the map until you zoom in to get beyond 120000.

Line 139 is where setMinScale is used.

<!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">
  <meta name="apple-mobile-web-app-capable" content="yes">
  <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  <meta name="mobile-web-app-capable" content="yes">
  <title>ArcGIS dynamic and tile layers using Popup and InfoTemplates</title>
  <link rel="stylesheet" href="https://js.arcgis.com/3.17/esri/css/esri.css">
  <style>
    html, body, #ui-esri-map {
      width:   100%;
      height:  100%;
      margin:  0;
      padding: 0;
    }

    #ui-esri-dijit-geocoder {
      top:      20px;
      left:     70px;
      position: absolute;
      z-index:  3;
    }

    .esriPopup .titlePane {
      text-shadow: none;
    }

    .esriPopup .titleButton.next {
      right: 40px;
    }

    .esriPopup .titleButton.prev {
      right: 53px;
    }

    .demographicInfoContent {
      padding-top: 10px;
    }

    .demographicInnerSpacing {
      display: inline-block;
      width:   8px;
    }

    .demographicNumericPadding {
      width:      90px;
      display:    inline-block;
      text-align: right;
    }
  </style>
  <script src="https://js.arcgis.com/3.17/"></script>
  <script>
    var map;
    require([
      "dojo/dom-construct",
      "esri/Color",
      "esri/dijit/Geocoder",
      "esri/dijit/Popup",
      "esri/InfoTemplate",
      "esri/layers/ArcGISDynamicMapServiceLayer",
      "esri/map",
      "esri/symbols/SimpleFillSymbol",
      "esri/symbols/SimpleLineSymbol", "dojo/domReady!"
    ], function(
      domConstruct, Color, Geocoder, Popup, InfoTemplate, 
      ArcGISDynamicMapServiceLayer, Map, SimpleFillSymbol, SimpleLineSymbol
    ) {
      var sls = new SimpleLineSymbol("solid", new Color("#444444"), 3);
      var sfs = new SimpleFillSymbol("solid", sls, new Color([68, 68, 68, 0.25]));

      var popup = new Popup({
        fillSymbol: sfs,
        lineSymbol: null,
        markerSymbol: null
      }, domConstruct.create("div"));

      map = new Map("ui-esri-map", {
        basemap: "topo",
        center: [-94.75290067627297, 39.034671990514816], // long, lat
        zoom: 12,
        sliderStyle: "small",
        infoWindow: popup
      });

      var geocoder = new Geocoder({
        arcgisGeocoder: {
          placeholder: "Search "
        },
        map: map
      }, "ui-esri-dijit-geocoder");

      var _countyCensusInfoTemplate = new InfoTemplate();
      _countyCensusInfoTemplate.setTitle("<b>Census Information</b>");

      var _blockGroupInfoTemplate = new InfoTemplate();
      _blockGroupInfoTemplate.setTitle("<b>Census Information</b>");

      var _censusInfoContent =
        "<div class=\"demographicInfoContent\">" +
        "<div class='demographicNumericPadding'>${AGE_5_17:formatNumber}</div><div class=\"demographicInnerSpacing\"></div>people ages 5 - 17<br>" +
        "<div class='demographicNumericPadding'>${AGE_40_49:formatNumber}</div><div class=\"demographicInnerSpacing\"></div>people ages 40 - 49<br>" +
        "<div class='demographicNumericPadding'>${AGE_65_UP:formatNumber}</div><div class=\"demographicInnerSpacing\"></div>people ages 65 and older" +
        "</div>";

      _countyCensusInfoTemplate.setContent("Demographics for:<br>${NAME} ${STATE_NAME:getCounty}, ${STATE_NAME}<br>" + _censusInfoContent);
      _blockGroupInfoTemplate.setContent("Demographics for:<br>Tract: ${TRACT:formatNumber} Blockgroup: ${BLKGRP}<br>" + _censusInfoContent);

      var _oilAndGasInfoTemplate = new InfoTemplate();
      _oilAndGasInfoTemplate.setTitle("<b>Oil and Gas data</b>");

      var _oilAndGasInfoContent =
        "<div class=\"demographicInfoContent\">" +
        "Gas production: ${PROD_GAS}<br>Oil production: ${PROD_OIL:formatNumber}" +
        "</div>";

      _oilAndGasInfoTemplate.setContent("${FIELD_NAME} production field<br>" +
        _oilAndGasInfoContent);

      var demographicsLayerURL = "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer";
      var demographicsLayerOptions = {
        "id": "demographicsLayer",
        "opacity": 0.8,
        "showAttribution": false
      };
      var demographicsLayer = new ArcGISDynamicMapServiceLayer(demographicsLayerURL, demographicsLayerOptions);
      demographicsLayer.setInfoTemplates({
        1: { infoTemplate: _blockGroupInfoTemplate },
        2: { infoTemplate: _countyCensusInfoTemplate }
      });
      demographicsLayer.setVisibleLayers([1, 2]);
      map.addLayer(demographicsLayer);

      var oilAndGasLayer = new ArcGISDynamicMapServiceLayer("https://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Petroleum/KGS_OilGasFields_Kansas/MapServer", {
        "id": "oilAndGasLayer",
        "opacity": 0.75
      });
      oilAndGasLayer.setMinScale(120000);
      oilAndGasLayer.setInfoTemplates({
        0: { infoTemplate: _oilAndGasInfoTemplate }
      });
      map.addLayer(oilAndGasLayer);

      geocoder.startup();
    });

    var formatNumber = function(value, key, data) {
      var searchText = "" + value;
      var formattedString = searchText.replace(/(\d)(?=(\d\d\d)+(?!\d))/gm, "$1,");
      return formattedString;
    };

    var getCounty = function(value, key, data) {
      if (value.toUpperCase() !== "LOUISIANA") {
        return "County";
      } else {
        return "Parish";
      }
    };
  </script>
</head>
<body>
<div id="ui-esri-map"></div>
<div id="ui-esri-dijit-geocoder"></div>
</body>
</html>

Re: DynamicMapServiceLayer group set minScale Javascript 3.16

JimBridge — Tue, 26 Jul 2016 14:40:40 GMT

Robert,

Thanks for looking at this with me. I appreciate the help.

That is basically what I'm doing but I think since the oil service only has one layer its working but mine with 12 layers and layer 6 having the min/max it seems I can't change the min max of the 6th layer.

It would be like TaxParcel/AssessorsValueAnalysis (MapServer) on the samplewserver1 with the multiple layers and trying to change layer 2 when the service just connects to sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsValueAnalysis/MapServer

Not

sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsValueAnalysis/MapServer/2

Does that seem like it might be the problem?

Thanks

Jim

Re: DynamicMapServiceLayer group set minScale Javascript 3.16

RobertScheitlin__GISP — Tue, 26 Jul 2016 15:02:42 GMT

Jim,

Correct, you can not change the minScale of a sublayer in the map service without having a mapservice that supports dynamic layers. DynamicLayers allows for modifying individual sublayer symbology and things like scale.