1)I am calculating distance between two address in PHP
using latitude and longitude and
2) also I am showing direction between two address.
but the issue is distance which is calculated in first case is
different to second case.Please suggest me what should I do?
my code.
Please suggest me if anything is wrong in code
Function to calculate distance
function caldis($addr,$addr1)
{
require_once('lib/GoogleMapAPI.class.php');
$map = new GoogleMapAPI('map');
$map->setAPIKey('ABQIAAAAE-
W_Pw2S_cQFTXQPeqAN5hSRhJXTRu3fM0ElVXnwviTojdgwfBSFyasfUJBRe0fV-
qRt2uYLyHYkbA');
$geocode = $map->geoGetCoords($addr);
//print_r($geocode);
$lat= $geocode['lat'];
$lon= $geocode['lon'];
$geocode = $map->geoGetCoords($addr1);
$lat1= $geocode['lat'];
$lon1= $geocode['lon'];
/*echo $addr.$addr1;
echo $lat.$lon.$lat1.$lon1;*/
//M-Miles
$distance = $map->geoGetDistance($lat,$lon,$lat1,$lon1,M);
return $distance;
}
Google map Javascript-- display map and direction
<script language="javascript" type="text/javascript">
var geocoder = null;
var map;
var gdir;
var addressMarker;
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...
}
function setDirections(fromAddress, toAddress, locale) {
gdir.load("from: " + fromAddress + " to: " + toAddress,
{ "locale": locale });
}
function load() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map"));
map.addControl (new GSmallMapControl());
map.addControl(new GMapTypeControl());
var center = new GLatLng(-22.98699983834975, -43.210344314575195);
map.setCenter(center, 11);
geocoder = new GClientGeocoder();
var marker = new GMarker(center, {draggable: true});
map.addOverlay(marker);
document.getElementById("lat").value = center.lat();
document.getElementById("lng").value = center.lng ();
geocoder = new GClientGeocoder();
GEvent.addListener(marker, "dragend", function() {
var point =marker.getPoint();
map.panTo(point);
document.getElementById("lat").value = point.lat();
document.getElementById("lng").value = point.lng();
});
GEvent.addListener(map, "moveend", function() {
map.clearOverlays();
var center = map.getCenter();
var marker = new GMarker(center, {draggable: true});
map.addOverlay(marker);
document.getElementById ("lat").value = center.lat();
document.getElementById("lng").value = center.lng();
GEvent.addListener(marker, "dragend", function() {
var point =marker.getPoint();
map.panTo(point);
document.getElementById("lat").value = point.lat();
document.getElementById("lng").value = point.lng();
});
});
}
}
function showdirection(frm) {
geocoder = new GClientGeocoder();
var map = new GMap2(document.getElementById("map"));
map.addControl(new GSmallMapControl());
map.addControl(new GMapTypeControl());
if (geocoder) {
geocoder.getLatLng (
frm.addr.value,
function(point) {
if (!point) {
alert(frm.addr.value + " city not found !");
}
else {
map.setCenter(point, 12);
var marker = new GMarker(point, {draggable: true});
map.addOverlay(marker);
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml(frm.addr.value);});
//marker.openInfoWindowHtml(frm.addr.value);
}}
);
geocoder.getLatLng (
frm.addr1.value,
function(point) {
if (!point) {
alert(frm.addr1.value + " city not found !");
}
else {
var marker1 = new GMarker(point, {draggable: true});
map.addOverlay(marker1);
GEvent.addListener(marker1, "click", function() {
marker1.openInfoWindowHtml(frm.addr1.value);});
}}
);
if (GBrowserIsCompatible()) {
gdir = new GDirections(map,
document.getElementById("directions"));
GEvent.addListener(gdir, "load", onGDirectionsLoad);
GEvent.addListener(gdir, "error", handleErrors);
setDirections(frm.addr.value,frm.addr1.value, "en_US");
}
}
}
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