<script type="text/javascript"> var map; var gpsPoint; var baiduPoint; var gpsAddress; var baiduAddress; var x;var y;function getLocation() { //根據IP獲取城市 var myCity = new BMap.LocalCity(); myCity.get(getCityByIP); //獲取GPS坐標 if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(showMap, handleError, { enableHighAccuracy: true, maximumAge: 1000 }); } else { alert("您的瀏覽器不支持使用HTML 5來獲取地理位置服務"); } } function showMap(value) { var longitude = value.coords.longitude; var latitude = value.coords.latitude; map = new BMap.Map("map"); x=latitude;y=longitude;//alert("坐標經度為：" + latitude + "， 緯度為：" + longitude ); gpsPoint = new BMap.Point(longitude, latitude); // 創建點坐標 //根據坐標逆解析地址 var geoc = new BMap.Geocoder(); geoc.getLocation(gpsPoint, getCityByCoordinate); BMap.Convertor.translate(gpsPoint, 0, translateCallback); map.enableScrollWheelZoom(true);} translateCallback = function (point) { baiduPoint = point; map.centerAndZoom(baiduPoint, 18); var geoc = new BMap.Geocoder(); geoc.getLocation(baiduPoint, getCityByBaiduCoordinate); } function getCityByCoordinate(rs) { gpsAddress = rs.addressComponents; var address = "GPS標注：" + gpsAddress.province + "," + gpsAddress.city + "," + gpsAddress.district + "," + gpsAddress.street + "," + gpsAddress.streetNumber; var marker = new BMap.Marker(gpsPoint); // 創建標注 map.addOverlay(marker); // 將標注添加到地圖中 var labelgps = new BMap.Label(address, { offset: new BMap.Size(20, -10) }); marker.setLabel(labelgps); //添加GPS標注 } function getCityByBaiduCoordinate(rs) { baiduAddress = rs.addressComponents; var address = "百度標注：" + baiduAddress.province + "," + baiduAddress.city + "," + baiduAddress.district + "," + baiduAddress.street + "," + baiduAddress.streetNumber; var marker = new BMap.Marker(baiduPoint); // 創建標注 map.addOverlay(marker); // 將標注添加到地圖中 var labelbaidu = new BMap.Label(address, { offset: new BMap.Size(20, -10) }); marker.setLabel(labelbaidu); //添加百度標注 } //根據IP獲取城市 function getCityByIP(rs) { var cityName = rs.name; alert("根據IP定位您所在的城市為:" + cityName); } function handleError(value) { switch (value.code) { case 1: alert("位置服務被拒絕"); break; case 2: alert("暫時獲取不到位置信息"); break; case 3: alert("獲取信息超時"); break; case 4: alert("未知錯誤"); break; } } function init() { getLocation(); } window.onload = init; </script>