mohsen-angular-leaflet-directive/examples/js/controllers/MarkersChangeOpacityController.js

angular-leaflet-directive - An AngularJS directive to easily interact with Leaflet maps

        app.controller('MarkersChangeOpacityController', [ '$scope', function($scope) {
            angular.extend($scope, {
                chicago: {
                    lat: 41.85,
                    lng: -87.65,
                    zoom: 8
                },
                markers: {
                    m1: {
                        lat: 41.85,
                        lng: -87.65,
                        message: "I'm a static marker with defaultIcon",
                        focus: false,
                        opacity: 1
                    },
                }
            });
        } ]);