利用百度地图API获取当前位置信息的实例

2023-09-21 12:17:05 53

varmap; vargpsPoint; varbaiduPoint; vargpsAddress; varbaiduAddress; varx; vary; functiongetLocation(){ //根据IP获取城市 varmyCity=newBMap.LocalCity(); myCity.get(getCityByIP); //获取GPS坐标 if(navigator.geolocation){ navigator.geolocation.getCurrentPosition(showMap,handleError,{enableHighAccuracy:true,maximumAge:1000}); }else{ alert("您的浏览器不支持使用HTML5来获取地理位置服务"); } } functionshowMap(value){ varlongitude=value.coords.longitude; varlatitude=value.coords.latitude; map=newBMap.Map("map"); x=latitude; y=longitude; //alert("坐标经度为："+latitude+"，纬度为："+longitude); gpsPoint=newBMap.Point(longitude,latitude);//创建点坐标 //根据坐标逆解析地址 vargeoc=newBMap.Geocoder(); geoc.getLocation(gpsPoint,getCityByCoordinate); BMap.Convertor.translate(gpsPoint,0,translateCallback); map.enableScrollWheelZoom(true); } translateCallback=function(point){ baiduPoint=point; map.centerAndZoom(baiduPoint,18); vargeoc=newBMap.Geocoder(); geoc.getLocation(baiduPoint,getCityByBaiduCoordinate); } functiongetCityByCoordinate(rs){ gpsAddress=rs.addressComponents; varaddress="GPS标注："+gpsAddress.province+","+gpsAddress.city+","+gpsAddress.district+","+gpsAddress.street+","+gpsAddress.streetNumber; varmarker=newBMap.Marker(gpsPoint);//创建标注 map.addOverlay(marker);//将标注添加到地图中 varlabelgps=newBMap.Label(address,{offset:newBMap.Size(20,-10)}); marker.setLabel(labelgps);//添加GPS标注 } functiongetCityByBaiduCoordinate(rs){ baiduAddress=rs.addressComponents; varaddress="百度标注："+baiduAddress.province+","+baiduAddress.city+","+baiduAddress.district+","+baiduAddress.street+","+baiduAddress.streetNumber; varmarker=newBMap.Marker(baiduPoint);//创建标注 map.addOverlay(marker);//将标注添加到地图中 varlabelbaidu=newBMap.Label(address,{offset:newBMap.Size(20,-10)}); marker.setLabel(labelbaidu);//添加百度标注 } //根据IP获取城市 functiongetCityByIP(rs){ varcityName=rs.name; alert("根据IP定位您所在的城市为:"+cityName); } functionhandleError(value){ switch(value.code){ case1: alert("位置服务被拒绝"); break; case2: alert("暂时获取不到位置信息"); break; case3: alert("获取信息超时"); break; case4: alert("未知错误"); break; } } functioninit(){ getLocation(); } window.onload=init;

利用百度地图API获取当前位置信息的实例

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