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Image Layers
Show current map extent


This sample retrieves the coordinates of the lower left and upper right corners of the map extent, using the Map.extent property. Finding the extent of the map this way may be useful for doing more advanced things, such as panning the map to predetermined "bookmarks".


<!DOCTYPE html>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <!--The viewport meta tag is used to improve the presentation and behavior of the samples 
      on iOS devices-->
    <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
    <title>Create Map</title>

    <link rel="stylesheet" href="http://js.arcgis.com/3.12/dijit/themes/claro/claro.css">
    <link rel="stylesheet" href="http://js.arcgis.com/3.12/esri/css/esri.css">

    <script src="http://js.arcgis.com/3.12/"></script>

      function init() {
        var initialExtent = new esri.geometry.Extent({"xmin":244598,"ymin":6241389,"xmax":278995,"ymax":6264320,"spatialReference":{"wkid":102100}});
        var map = new esri.Map("map", {
          basemap: "streets",
          extent: initialExtent
        dojo.connect(map, "onExtentChange", showExtent);

      function showExtent(extent) {
        var s = "";
        s = "XMin: "+ extent.xmin.toFixed(2) + " "
           +"YMin: " + extent.ymin.toFixed(2) + " "
           +"XMax: " + extent.xmax.toFixed(2) + " "
           +"YMax: " + extent.ymax.toFixed(2);
        dojo.byId("info").innerHTML = s;

  <body class="claro">
    <div id="map" style="width:900px; height:600px; border:1px solid #000;"></div>
    <div id="info" style="padding:5px; margin:5px; background-color:#eee;"></div>
    Creates a map and adds an ArcGISTiledMapServiceLayer.  On map onExtentChanged event you should see the extent printed below the map.<br />
    Map navigation using mouse:
      <li>Drag to pan</li>
      <li>SHIFT + Click to recenter</li>
      <li>SHIFT + Drag to zoom in</li>
      <li>SHIFT + CTRL + Drag to zoom out</li>
      <li>Mouse Scroll Forward to zoom in</li>
      <li>Mouse Scroll Backward to zoom out</li>
      <li>Use Arrow keys to pan</li>
      <li>+ key to zoom in a level</li>
      <li>- key to zoom out a level</li>
      <li>Double Click to Center and Zoom in</li>