we are using google map api for calculating driving distance between
two address but we are facing certain problems in getting the driving
distance and address.
1-the distance returned by api is not match with the result shown by
the live google map.
2-the javascript function that uses google map api return error in
address as invalid address error but that address work fine in live
google map.
we are using the following javascript function for calculating
driving distance
**********************************************************************************************************************
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
<html xmlns="http://www.w3.org/1999/xhtml"; xmlns:v="urn:schemas-
microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/
>
<title>GET DIRECTION</title>
<script src="
http://maps.google.com/?file=api&v=2.x&key=ABQIAAAARkb2kjnLzJ8IeeQ0WSFSDhQdMY-rqcBK7mOLf4exckLw5w98-BS8i8QPqiY0cdiUtjk2szORhz7Q3w";
type="text/javascript"> </script>
<style type="text/css">
body {
font-family: Verdana, Arial, sans serif;
font-size: 11px;
margin: 2px;
}
table.directions th {
background-color:#EEEEEE;
}
img {
color: #000000;
}
</style>
<script type="text/javascript">
var map;
var gdir;
var geocoder = null;
var addressMarker;
function initialize() {
if (GBrowserIsCompatible()) {
map = new GMap2(document.getElementById("map_canvas"));
gdir = new GDirections(map,
document.getElementById("directions"));
GEvent.addListener(gdir, "load", onGDirectionsLoad);
GEvent.addListener(gdir, "error", handleErrors);
setDirections("San Francisco", "Mountain View");
}
}
function setDirections(fromAddress, toAddress) {
gdir.load("from: " + fromAddress + " to: " + toAddress);
}
function handleErrors(){
if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
alert("No corresponding geographic location could be found for
one of the specified addresses. This may be due to the fact that the
address is relatively new, or it may be incorrect.\nError code: " +
gdir.getStatus().code);
else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
alert("A geocoding or directions request could not be
successfully processed, yet the exact reason for the failure is not
known.\n Error code: " + gdir.getStatus().code);
else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
alert("The HTTP q parameter was either missing or had no value.
For geocoder requests, this means that an empty address was specified
as input. For directions requests, this means that no query was
specified in the input.\n Error code: " + gdir.getStatus().code);
// else if (gdir.getStatus().code == G_UNAVAILABLE_ADDRESS) <---
Doc bug... this is either not defined, or Doc is wrong
// alert("The geocode for the given address or the route for the
given directions query cannot be returned due to legal or contractual
reasons.\n Error code: " + gdir.getStatus().code);
else if (gdir.getStatus().code == G_GEO_BAD_KEY)
alert("The given key is either invalid or does not match the
domain for which it was given. \n Error code: " +
gdir.getStatus().code);
else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
alert("A directions request could not be successfully parsed.\n
Error code: " + gdir.getStatus().code);
else alert("An unknown error occurred.");
}
function onGDirectionsLoad(){
// Use this function to access information about the latest
load()
// results.
// e.g.
// document.getElementById("getStatus").innerHTML =
gdir.getStatus().code;
// and yada yada yada...
}
</script>
</head>
<body onload="initialize()" onunload="GUnload()">
<form action="#" onsubmit="setDirections(this.from.value,
this.to.value); return false">
<table>
<tr><th align="right">From: </th>
<td><input type="text" size="25" id="fromAddress" name="from"
value="San Francisco"/></td>
<th align="right"> To: </th>
<td align="right"><input type="text" size="25" id="toAddress"
name="to"
value="Mountain View" /></td></tr>
<tr><th>Language: </th>
<td colspan="3"><select id="locale" name="locale">
<option value="en" selected>English</option>
<option value="fr">French</option>
<option value="de">German</option>
<option value="ja">Japanese</option>
<option value="es">Spanish</option>
</select>
<input name="submit" type="submit" value="Get Distance!" />
</td></tr>
</table>
</form>
<br/>
<table class="directions">
<tr><th>Formatted Directions</th><th>Map</th></tr>
<tr>
<td valign="top"><div id="directions" style="width: 275px"></div></
td>
<td valign="top"><div id="map_canvas" style="width: 310px; height:
400px"></div></td>
</tr>
</table>
</body>
</html>
*********************************************************************************************************************************************
if anybody know why it is happening and what is the solution for it
please reply as soon as possible as we need it urgently
Thanks
Mukesh
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