HTML5 获取用户坐标方法

function GetLocation() {
            if (navigator.geolocation) {
                var locationOptions = {
                    //是否使用高精度设备，如GPS。默认是true
                    enableHighAccuracy: true,
                    //超时时间，单位毫秒，默认为0
                    timeout: 5000,
                    //使用设置时间内的缓存数据，单位毫秒
                    //默认为0，即始终请求新数据
                    //如设为Infinity，则始终使用缓存数据
                    maximumAge: 0
                };
                //只执行一次
                navigator.geolocation.getCurrentPosition(locationSuccess, locationError, locationOptions);

                //只要设备位置发生变化，就会执行
                //watcherID = navigator.geolocation.watchPosition(locationSuccess, locationError, locationOptions);

                //用于终止watchPosition方法
                //navigator.geolocation.clearWatch(watcher_id);
            } else {
                $.jBox.info("Your browser does not support Geolocation!");
            }
        }

function locationError(error) {
            switch (error.code) {
                case error.TIMEOUT:
                    $.jBox.info("A timeout occured! Please try again!");
                    break;
                case error.POSITION_UNAVAILABLE:
                    $.jBox.info('We can\'t detect your location. Sorry!');
                    break;
                case error.PERMISSION_DENIED:
                    $.jBox.info('Please allow geolocation access for this to work.');
                    break;
                case error.UNKNOWN_ERROR:
                    $.jBox.info('An unknown error occured!');
                    break;
            }
        }

function locationSuccess(position) {
            var coords = position.coords;
             //coords.latitude;
             //coords.longitude;
        }    

反向地址解析

 

var geoCoder = new google.maps.Geocoder();

var point = new google.maps.LatLng(lat, lng);

geoCoder.geocode({ 'latLng': point }, function (results, state) {
                if (state = google.maps.GeocoderStatus.OK) {
                    if (results[0]) {
                        var point = results[0].geometry.location;
                        var myDirection = results[0].formatted_address;

                        myMarker = new google.maps.Marker({
                            position: point,
                            map: map,
                            title: "You Are Here"
                        });

                        var infowindow = new google.maps.InfoWindow({
                            content: myDirection
                        });

             google.maps.event.addListener(myMarker, 'click', function() {
                        infowindow.open(map, myMarker);
            });
                    }
                }
            });

            google.maps.event.addListener(map, "rightclick", function(event) {
                var lat = event.latLng.lat();
                var lng = event.latLng.lng();
            });