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调用googleMapApi

发布时间:2020-05-31 07:22:11 阅读:611 作者:起始页 栏目:移动开发
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 基本调用

<!DOCTYPE html> <html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <style type="text/css">   html { height100% }   body { height100%margin0pxpadding0px }   #map_canvas { height100% } </style> <script type="text/javascript"     src="https://maps.google.com/maps/api/js?sensor=true"> </script> <script type="text/javascript">   function initialize() {     var latlng = new google.maps.LatLng(-34.397150.644);     var myOptions = {       zoom8,       center: latlng,       mapTypeId: google.maps.MapTypeId.ROADMAP     };     var map = new google.maps.Map(document.getElementById("map_canvas"),         myOptions);   }  </script> </head> <body onload="initialize()">   <div id="map_canvas" style="width:100%; height:100%"></div> </body> </html> 

基于html5的稍微复杂的Goolge Map 调用

<!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <style type="text/css">   html { height:800pxwidth:480px; }   body { height100%margin0pxpadding0px }   #map_canvas { height100% }   #metaDataTable { position:absolute; top:30pxleft:0pxz-index:1000;} </style> <title>html5_Geolocation</title> <script type="text/javascript"     src="https://maps.google.com/maps/api/js?sensor=false"> </script>  </head>  <body> <div id="metaDataTable">  <h2> Html5 Geolocation Distance Tracker</h2>  <p id="status"> Html5 Geolocation is<strong> not</strong> suppert your browser!!!</p> <h3>Current Position:</h3> <table border="1">      <tr>         <td width=40 scope="col">纬度</td>         <td wisth=114 id="latitude">?</td>      </tr>      <tr>         <td width=40 scope="col">经度</td>         <td wisth=114 id="longitude">?</td>      </tr>       <tr>         <td width=40 scope="col">海拔</td>         <td wisth=114 id="accuracy">?</td>      </tr>        <tr>         <td width=40 scope="col">Last TimeStamp</td>         <td wisth=114 id="timestamp">?</td>      </tr> </table> <h5 id="currDist"> Current distance traveled:0.0KM</h5> <h5 id="totalDist">Total distance traveled:0.0KM</h5> </div> <script>       var totalDistance = 0.0;       var lastLat;       var lastLong;       var latitude;       var longitude; /*function getGeolacation(){     if(navigator.geolocation){         alert("Support the html5 Geolacation API");         navigator.geolocation.getCurrentPosition(updateLocation);         }     }*/     function updateLocation(position){          latitude = position.coords.latitude;          longitude = position.coords.longitude;         var accuracy = position.coords.accuracy;         var timestamp = position.timestamp;         document.getElementById("latitude").innerHTML =latitude ;         document.getElementById("longitude").innerHTML = longitude;         document.getElementById("accuracy").innerHTML = accuracy;         document.getElementById("timestamp").innerHTML = timestamp;         if(accuracy >= 500){           updateStatus("need more accure vslues to calculate distance.");           return;         }         //计算距离         if((lastLat != null)&&(lastLong != null)){            var CurrentDistance = distance(latitude,longitude,lastLat,lastLong);            document.getElementById("currDist").innerHTML = "Current distance traveled"+CurrentDistance+"KM";            totalDistance  += CurrentDistance;            document.getElementById("totalDist").innerHTML="=Total distance traveled "+totalDistance+"KM";         }         lastLat = latitude;         lastLong = longitude;         updateStatus("Loacation Successfully uodated!!!");         initialize(latitude,longitude);         }         function handleLocationError(error){           switch(error.code){            case 0 :            uodateStatus("There was an error while retrieving your Location "+error.message);            break;             case 1 :            uodateStatus("the user prevented this page from your Location "+error.message);             break;             case 2 :            uodateStatus("the browser was unable to determine your Location "+error.message);             break;             case 3 :            uodateStatus("the browser timed out before retrieving your Location "+error.message);             break;           }         }       function toRadians(degree){         return degree = Math.PI / 180;       }       function distance(latitude1, longitude1, latitude2, longitude2){       var R = 6371;       var deltatidude = toRadians(latitude2- latitude1);       var dellongitude = toRadians(longitude2 - longitude1);       latitude1  = toRadians(latitude1);       latitude2  = toRadians(latitude2);       var a = Math.sin(deltalatitude/2)*Math.cos(deltalatitude/2)*Math.cos(latitude1)*Math.cos(latitude2)*Math.sin(dellongitude/2)*Math.sin(dellongitude/2);       var c= 2*Math.atan2(Math.sqrt(a),Math.sqrt(1-a));       var d = R*c;       return d;       }       //R是地球的半径,单位是KM       function updateStatus(message){       document.getElementById("status").innerHTML = message;       }       function loadDemo(){         if(navigator.geolocation){         updateStatus("your browser is support html5 geolacation");         navigator.geolocation.watchPosition(updateLocation,handleLocationError,{maximumAge:20000});         }       }   function initialize(la,longi) {        var latlng = new google.maps.LatLng(la, longi);        var div = document.createElement("div");        var str = "<b>我的当前位置</b>";        var myOptions = {         zoom: 18,         center: latlng,         mapTypeId: google.maps.MapTypeId.TERRAIN         };         var map = new google.maps.Map(document.getElementById("map_canvas"),         myOptions);         var marker = new google.maps.Marker({            position:latlng,            map:map,            title:"My Location"         });    }       window.addEventListener("load",loadDemo, true);       </script>       <div id="map_canvas" style="width:100%; height:100%"></div>  </body> </html> 

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