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HTML

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Insecure Resource

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <!--

To run this demo, you need to replace 'YOUR_API_KEY' with an API key from the ArcGIS Developers dashboard.

Sign up for a free account and get an API key.

https://developers.arcgis.com/documentation/mapping-apis-and-services/get-started/

-->

<html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
  <title></title>
  <style>
    html, body, #viewDiv {
      padding: 0;
      margin: 0;
      height: 100%;
      width: 100%;
    }
    
    #box {
  height:200px;
  width:300px; 

 
  position:absolute;
  border:2px solid red;
  background-color:transparent;
 /* left:-121.755px;
  top:38.359px */

  padding: 10px;
  cursor: move;
  z-index: 10;
  overflow: auto;
 
}
  </style>
  <link rel="stylesheet" href="https://js.arcgis.com/4.27/esri/themes/light/main.css">
  <script src="https://js.arcgis.com/4.27/"></script>
  <script>

  require([
    "esri/config",
    "esri/Map",
    "esri/views/MapView",
    "esri/geometry/Point",
    "esri/geometry/support/webMercatorUtils",
    "esri/Graphic",
    "esri/layers/GraphicsLayer"

    ], function(esriConfig,Map, MapView, Point, webMercatorUtils, Graphic, GraphicsLayer) {

  esriConfig.apiKey = "YOUR_API_KEY";

  const map = new Map({
    basemap: "streets"
  });

  const view = new MapView({
    map: map,
    center: [-119.475, 37.737], 
    zoom: 6,
    container: "viewDiv"
 });
    
    view.on("click", function(event) {
 // you must overwrite default click-for-popup
 // behavior to display your own popup
 view.popupEnabled = false;

 // Get the coordinates of the click on the view
 let lat = Math.round(event.mapPoint.latitude * 1000) / 1000;
 let lon = Math.round(event.mapPoint.longitude * 1000) / 1000;
     console.log(lat + "  " + lon) 
      
    })
    
    view.when(function() {
	var point = new Point({x:-121.755, y:38.359});
   console.log("topleft: " + point.x + "  " + point.y)
	var screenPoint = view.toScreen(point);

	var rect = view.container.getBoundingClientRect();
	var left = screenPoint.x + rect.left + window.scrollX;
	var top = screenPoint.y + rect.top + window.scrollY;
      


	var box = document.getElementById("box");
	box.style.left = left.toString() + "px";
	box.style.top = top.toString() + "px";
      
 var bottomrightX= left + 200  //200 is the width of the box pre css
  var bottomrightY= top + 300 //300 is the height of the box per css
  
   var sPoint = {
   x: bottomrightX,
   y: bottomrightY
}
   let ptUpdate=view.toMap(sPoint);
  // console.log("POINT = " + ptUpdate.x + "," + ptUpdate.y);
  var value = webMercatorUtils.xyToLngLat(
          ptUpdate.x,
          ptUpdate.y
        );
  console.log("bottomright: " + value)
  
});
    
    
    
    //Coords widget
    var coordsWidget = document.createElement("div");
coordsWidget.id = "coordsWidget";
coordsWidget.className = "esri-widget esri-component";
coordsWidget.style.padding = "7px 15px 5px";
view.ui.add(coordsWidget, "bottom-right");

//*** Update lat, lon, zoom and scale ***//
function showCoordinates(pt) {
  var coords = "Lat/Lon " + pt.latitude.toFixed(3) + " " + pt.longitude.toFixed(3) + 
      " | Scale 1:" + Math.round(view.scale * 1) / 1 +
      " | Zoom " + view.zoom;
  coordsWidget.innerHTML = coords;
}

//*** Add event and show center coordinates after the view is finished moving e.g. zoom, pan ***//
view.watch(["stationary"], function() {
  showCoordinates(view.center);
});

//*** Add event to show mouse coordinates on click and move ***//
view.on(["pointer-down","pointer-move"], function(evt) {
  showCoordinates(view.toMap({ x: evt.x, y: evt.y }));
});


 });
</script>
</head>
<body>
     <div id="box"></div>
  <div id="viewDiv"></div>
</body>
</html>
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