title: Show current location in Cesium
body: <p>I'm using cesium map</p>
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html lang=&quot;en&quot;&gt;
  &lt;head&gt;
    &lt;title&gt;Draw&lt;/title&gt;
    &lt;script src=&quot;../../Cesium/Cesium.js&quot;&gt;&lt;/script&gt;
    &lt;style&gt;
      @import url(../../Cesium/Widgets/widgets.css);
      html, body, #cesiumContainer {
          width: 100%; height: 100%; margin: 0; padding: 0; overflow: hidden;
      }
    &lt;/style&gt;
  &lt;/head&gt;
  &lt;body&gt;
    &lt;div id=&quot;cesiumContainer&quot;&gt;&lt;/div&gt;
    &lt;script&gt;
      Cesium.BingMapsApi.defaultKey = 'XXXXXXXXXX';
    var viewer = new Cesium.Viewer('cesiumContainer', {infoBox : false, selectionIndicator : false });
    var color;
    var camera = viewer.camera;
    var polyline;
    var drawing = false;
    var positions = [];
    var handler = new Cesium.ScreenSpaceEventHandler(viewer.canvas);
    handler.setInputAction(
        function (click) {
            if (drawing) {
                color.alpha = 0.6;
                viewer.entities.add({
                    polygon: {
                        hierarchy : {
                            positions : positions
                        },
                        material : color,
                        outline : true
                    }
                });
                viewer.entities.remove(polyline);
                positions = [];
            } else {
                color = Cesium.Color.fromRandom({alpha : 1.0});
                polyline = viewer.entities.add({
                    polyline : {
                      positions : new Cesium.CallbackProperty(function(){
                        return positions;
                      }, false),
                      material : color
                    }
                });
            }
            drawing = !drawing;
        },
        Cesium.ScreenSpaceEventType.LEFT_CLICK
    );
  
    handler.setInputAction(
        function (movement) {
            var surfacePosition = camera.pickEllipsoid(movement.endPosition);
            if (drawing &amp;&amp; Cesium.defined(surfacePosition)) {
                positions.push(surfacePosition);
            }
        },
        Cesium.ScreenSpaceEventType.MOUSE_MOVE
    );
    
    camera.flyTo({destination: Cesium.Cartesian3.fromDegrees(-100, 40, 10000)});
  
    &lt;/script&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  <p>I want to show current location on the map and it should zoom that location from where the user is accessing the map. Is it possible in cesium, Thanks</p>