<div ng-controller="MyCtrl">
  <div class="row">
    <div class="col-sm-12">
    <ui-gmap-google-map 
      id="map-canvas"
      center="map.center"
      zoom="map.zoom"
      draggable="true"
      options="map.options"
      control="map.control"
      events="map.events"
    >
    </ui-gmap-google-map>
    </div>
  </div>
</div>

var mapApp = angular.module('googleMapApp', ['uiGmapgoogle-maps']);

mapApp.config(
    ['uiGmapGoogleMapApiProvider', function(GoogleMapApiProviders) {
        GoogleMapApiProviders.configure({
          key: 'your Google Map api key',
          v: '3', //defaults to latest 3.X anyhow
          libraries: 'weather,geometry,visualization,places'
        });
    }]
);

mapApp.controller("MyCtrl",['$scope', 'uiGmapGoogleMapApi', function ($scope,uiGmapGoogleMapApi) {
  angular.extend($scope, {
    map: {
      center: {
        latitude: 35.681382,
        longitude: 139.766084
      },
      options: {
        maxZoom: 20,
        minZoom: 3
      },
      zoom: 15,
      control: {},
      events: { 
        projection_changed: function (map, eventName, originalEventArgs) {
          var styles = [
            {
              featureType: "all",
              stylers: [
                { saturation: -80 }
              ]
            },{
              featureType: "water",
              elementType: "geometry",
              stylers: [
                { hue: "#00ffee" },
                { saturation: 90 }
              ]
            },{
              featureType: "poi.park",
              elementType: "geometry",
              stylers: [
                { hue: "#00ff00" },
                { saturation: 90 }
              ]
            },{
              featureType: "poi.park",
              elementType: "labels",
              stylers: [
                { hue: "#ff0000" },
                { saturation: 90 }
              ]
            }
          ];
          var styledMap = new google.maps.StyledMapType(styles,{name: "Styled Map"});
          map.mapTypes.set('map_style', styledMap);
          map.setMapTypeId('map_style');
        }
      }
    }
  });
  uiGmapGoogleMapApi.then(function(maps) {});
}]);