Google Map Update dynamically in Angular - angularjs

Question

http://plnkr.co/edit/Zd9GwG?p=preview
I am working on this google map + angular.js example . I want to change the location center dynamically depend on the variable .i.e. I want to make it dynamic center. Please suggest how to do this ?
I want to do some thing Like this.
// Code goes here
//Add the requried module 'angular-ui' as a dependency
angular.module('maptesting', ['ui.directives']);
function MapCtrl($scope) {
$scope.lat = 35.120922 ;
$scope.long = -89.97731 ;
var ll = new google.maps.LatLng($scope.lat, $scope.long);
$scope.mapOptions = {
center: ll,
zoom: 15,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
//Markers should be added after map is loaded
$scope.onMapIdle = function() {
//alert("DF");
if ($scope.myMarkers === undefined){
var marker = new google.maps.Marker({
map: $scope.myMap,
position: ll
});
$scope.myMarkers = [marker, ];
}
};
$scope.showMarkerInfo = function(marker) {
$scope.myInfoWindow.open($scope.myMap, marker);
};
$scope.changeval = function(){
$scope.lat = 13.0810 ;
$scope.long = 80.2740 ;
};
}

Answer 1

You need to watch for changes in the scope in order to refresh the map.
Demo Plunkr
(just use the input fields above the map to change the center of the map in real time)
The important part is $scope.$watch:
var updateCenter = function() {
var ll = new google.maps.LatLng($scope.lat, $scope.long);
$scope.myMap.panTo(ll);
// eventually more stuff
}
$scope.$watch('lat', updateCenter);
$scope.$watch('long', updateCenter);