Pen Settings



CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource


Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource


Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.


Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.


    <meta charset="utf-8" />
  ArcGIS API for JavaScript,
  For more information about the layers-custom-tilelayer sample, read the original sample description at
<title>Custom TileLayer - 4.13</title>


      #viewDiv {
        padding: 0;
        margin: 0;
        height: 100%;
        width: 100%;

    <script src=""></script>

      ], function(
      ) {
        // *******************************************************
        // Custom tile layer class code
        // Create a subclass of BaseTileLayer
        // *******************************************************

        var TintLayer = BaseTileLayer.createSubclass({
          properties: {
            urlTemplate: null,
            tint: {
              value: null,
              type: Color

          // generate the tile url for a given level, row and column
          getTileUrl: function(level, row, col) {
            return this.urlTemplate
              .replace("{z}", level)
              .replace("{x}", col)
              .replace("{y}", row);

          // This method fetches tiles for the specified level and size.
          // Override this method to process the data returned from the server.
          fetchTile: function(level, row, col) {
            // call getTileUrl() method to construct the URL to tiles
            // for a given level, row and col provided by the LayerView
            var url = this.getTileUrl(level, row, col);

            // request for tiles based on the generated url
            return esriRequest(url, {
              responseType: "image"
              function(response) {
                // when esri request resolves successfully
                // get the image from the response
                var image =;
                var width = this.tileInfo.size[0];
                var height = this.tileInfo.size[0];

                // create a canvas with 2D rendering context
                var canvas = document.createElement("canvas");
                var context = canvas.getContext("2d");
                canvas.width = width;
                canvas.height = height;

                // Apply the tint color provided by
                // by the application to the canvas
                if (this.tint) {
                  // Get a CSS color string in rgba form
                  // representing the tint Color instance.
                  context.fillStyle = this.tint.toCss();
                  context.fillRect(0, 0, width, height);

                  // Applies "difference" blending operation between canvas
                  // and steman tiles. Difference blending operation subtracts
                  // the bottom layer (canvas) from the top layer (tiles) or the
                  // other way round to always get a positive value.
                  context.globalCompositeOperation = "difference";

                // Draw the blended image onto the canvas.
                context.drawImage(image, 0, 0, width, height);

                return canvas;

        // *******************************************************
        // Start of JavaScript application
        // *******************************************************
        // *******************************************************
        // Create a subclass of BaseDynamicLayer
        // *******************************************************
        var CustomWMSLayer = BaseDynamicLayer.createSubclass({
          properties: {
            mapUrl: null,
            mapParameters: null

          // Override the getImageUrl() method to generate URL
          // to an image for a given extent, width, and height.
          getImageUrl: function(extent, width, height) {
            var urlVariables = this._prepareQuery(
            var queryString = this._joinUrlVariables(urlVariables);
            return this.mapUrl + "?" + queryString;

          // Prepare query parameters for the URL to an image to be generated
          _prepareQuery: function(queryParameters, extent, width, height) {
            var wkid = extent.spatialReference.isWebMercator
              ? 3857
              : extent.spatialReference.wkid;
            var replacers = {
              width: width,
              height: height,
              wkid: wkid,
              xmin: extent.xmin,
              xmax: extent.xmax,
              ymin: extent.ymin,
              ymax: extent.ymax

            var urlVariables = this._replace({}, queryParameters, replacers);
            return urlVariables;

          // replace the url variables with the application provided values
          _replace: function(urlVariables, queryParameters, replacers) {
            Object.keys(queryParameters).forEach(function(key) {
              urlVariables[key] = Object.keys(replacers).reduce(function(
              ) {
                return previous.replace(
                  "{" + replacerKey + "}",

            return urlVariables;

          // join the url parameters
          _joinUrlVariables: function(urlVariables) {
            return Object.keys(urlVariables).reduce(function(previous, key) {
              return (
                previous + (previous ? "&" : "") + key + "=" + urlVariables[key]
            }, "");
        // *******************************************************
        // end of custom dynamic layer
        // *******************************************************

        var wmsLayer = new CustomWMSLayer({
          mapUrl: "",
          mapParameters: {
            SERVICE: "WMS",
            REQUEST: "GetMap",
            FORMAT: "image/png",
            TRANSPARENT: "TRUE",
            STYLES: "",
            VERSION: "1.3.0",
            LAYERS: "CP.CadastralParcel",
            WIDTH: "{width}",
            HEIGHT: "{height}",
            CRS: "EPSG:{wkid}",
            BBOX: "{xmin},{ymin},{xmax},{ymax}"
        // Create a new instance of the TintLayer and set its properties
        var stamenTileLayer = new TintLayer({
          tint: new Color("#004FBB"),
          title: "Stamen Toner"

        // add the new instance of the custom tile layer the map
        var map = new Map({
          layers: [stamenTileLayer, wmsLayer]

        // create a new scene view and add the map
        var view = new SceneView({
          container: "viewDiv",
          map: map,
          center: [-4.489643,48.3871035],
          zoom: 17

    <div id="viewDiv"></div>