如何使用gps與php和html顯示動態路由

Question

我正在開發一個使用php和html-5的網站，我的計劃是在給定的JPEG圖像上顯示兩個位置之間的動態路由，我們如何能做到這一點，我不知道使用GPS系統，網站的想法，我想一些幫助..

感謝

Answer 1

尼斯文章在這裏：

http://merged.ca/iphone/html5-geolocation

if (navigator.geolocation) { 
navigator.geolocation.getCurrentPosition( 

    function (position) { 

    // Did we get the position correctly? 
    // alert (position.coords.latitude); 

    // To see everything available in the position.coords array: 
    // for (key in position.coords) {alert(key)} 

    alert(position.coords.latitude + ',' + position.coords.longitude); 

    }, 
    // next function is the error callback 
    function (error) 
    { 
     switch(error.code) 
     { 
      case error.TIMEOUT: 
       alert ('Timeout'); 
       break; 
      case error.POSITION_UNAVAILABLE: 
       alert ('Position unavailable'); 
       break; 
      case error.PERMISSION_DENIED: 
       alert ('Permission denied'); 
       break; 
      case error.UNKNOWN_ERROR: 
       alert ('Unknown error'); 
       break; 
     } 
    } 
    ); 
} 

}

Answer 2

看到W3Schools的文章：http://www.w3schools.com/html/html5_geolocation.asp

if(!navigator.geolocation){ 
    //the browser does not support geolocation 
}else{ 
    (function getPosition(){ 
    navigator.geolocation.getCurrentPosition(
     function (position){ 
     //use the coordinates 
     balloon.style.left = (position.coords.latitude - latMin) * latScale; 
     balloon.style.top = (position.coords.longitude - longMin) * longScale; 
     //requery the position after a set time 
     setTimeout(getPosition,1000); 
     } 
    ) 
    })() 
}