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Get Latitude and Longitude Of User From Simple Javascript!

Subesh Pokhrel — Thu, 23 Jul 2009 04:04:01 +0000

I am a big fan of Latitude and Longitude, as you all might know, I have other post related to Latitude and Longitude and Google Maps.
I came across one of the greatest feature of Mozilla Firefox 3.5, and that was to get the latitude and Longitude of user using simple Javascript. No API to use, No query to Google or anything. Here’s the code.

Remember this only works on Mozilla Firefox 3.5. I’ll later come up with using this method to plot user on Google Maps, So follow on !

Tabbed Infowindow in Google Maps

Subesh Pokhrel — Wed, 16 Jul 2008 12:27:00 +0000

I wanted to show different categories of information on one GMarker. That is I wanted to show different types of information on a Infowindow for a point on Google Maps. For that I used a tabbed info window, which helped me to show different data on each tabs. Here is the code of what I have done. I have shown the latitude and longitude of a placed clicked on the map on the tabbed info window. This is just the script part. The demo and download links are given below.

Lets focus on the #17-#26 Lines of codes. Other Lines are already described on other posts. Please see the related post link below the post.
#17: Creates a GMarker on the point where clicked on the Map.
#18: Addes the GMarker over the Map.
#19: Initiates an array of tabsinfoTabs with GInfoWindowTab function with tabname and its innerHTML as parameters.
#20: Opens the infowindow calling openInfoWindowTabsHtml function and the array of tabs as parameters.

[Download] [Demo]

Mapping The IP Address to Latitude and Longitude In Google Maps

Subesh Pokhrel — Fri, 11 Jul 2008 13:03:32 +0000

At last I found hostip.info provides a service for getting the latitude and longitude of a place on the basis of the user’s ip address. Its light weight and free, rather than downloading bulky database and getting paid services, for getting latitude and longitude on the basis of IP.
Here is the simplest way to do it. Requested to http://api.hostip.info/?ip=$ip&position=true it responds XML formatted output. So we need to parse XML code using DOM class of PHP.(#19-#23). Remember, the position=true should be set to get the latitude and longitude otherwise it will not show on default.

Here is the code and I will soon upload the working demo.

load($uri);
	$name=$dom->getElementsByTagNameNS('http://www.opengis.net/gml','name')->item(1)->nodeValue;
	$coordinates=$dom->getElementsByTagNameNS('http://www.opengis.net/gml','coordinates')->item(0)->nodeValue;
	$temp=explode(",",$coordinates);
	$latlngValue['LNG']=$temp[0];
	$latlngValue['LAT']=$temp[1];
	$latlngValue['NAME']=$name;
	return $latlngValue;

}
//calling the functions and setting on array $latlng
$IP=getRealIpAddr(); //from roshanbh.com.np
$latlng=IPtoLatLng($IP);
?>

[UPDATE] [DOWNLOAD]
Due to high request of the visitors I have posted the whole source code here.. just copy the PHP part above anywhere the script part and get the IP code from http://roshanbh.com.np/2007/12/getting-real-ip-address-in-php.html and run. Remember you need PHP5, because the DOM used is of PHP5.



  
    
    Google Maps Plotting  User By Refrence Of IP Address | Subesh.com.np

 
    
 
  
  Subesh.com.np: Maps Example

Latitude and Longitude Of a Place in Google Maps Using Zip Code

Subesh Pokhrel — Wed, 18 Jun 2008 17:07:31 +0000

I have already posted similar post for finding out the latitude and longitude of a place using Google maps, but when I studied the traffic details and found out that when people visit that post, they sometime come with keywords like zipcode+latitude and longitudes, so I thought it would be better to them to post another article, giving them what they exactly want.

Before I write down the codes there is something we should know. Google provides a service of returning CSV (Comma Seperated Values) when requested to http://maps.google.com/maps/geo?q=$query&output=csv&key=$key. The $query may contain address, zip code, city and country. The service also outputs in other formats. But we have choosed CSV format because it would be easy for us to explode the values separated by commas. The output type is defined by the output parameter in the URL. The output or response we then receive are in the format of geocode, accuracy, latitude, longitude. $key is the Google maps API key.


gKey) > 1) {
      $q = str_replace(' ', '_', $this->address.','.$this->zip.'+'.$this->city.','.$this->country);
      if ($d = @fopen("http://maps.google.com/maps/geo?q=$q&output=csv&key=".$this->gKey, "r")) {
        $gcsv = @fread($d, 30000);
        @fclose($d);

       $output=array();
       $tmp = explode(",", $gcsv);

       // $this->code      = $tmp[0];
       // $this->Accuracy  = $tmp[1];
        $output[0]=$this->latitude  = $tmp[2];
        $output[1]=$this->longitude = $tmp[3];
        return $output;

      } else {
        $error = "NO_CONNECTION" ;
      }
    } else {
      $error = "No Google Maps Api Key" ;
    }
  }

}

?>

The above class can be implemented as following.

$obj_google=new googleRequest;
$obj_google->zip=35005;

/* alternate uses
$obj_google->country="Country Name Here";
$obj_google->city="City Name Here";
$obj_google->address="address";
*/
$obj_google->gKey="ABQIAAAAPHLcOOGHX2-uLk3K8q1nMRTkUAbhgKwL1jWWfpv-KGJeCrct7hTsLLnZdnZjzehmRIkaePagQvKNbw";
$latlng=$obj_google->GetRequest();
var_dump($latlng);

The above returns latitude and longitude of place with zip code 35005 as array(2) { [0]=> string(9) “33.592857″ [1]=> string(10) “-86.994015″ }

How To Get Latitude and Longitude of a Place Using Google Maps

Subesh Pokhrel — Tue, 20 May 2008 05:03:23 +0000

I was so frustrated during one project where I need to find out the geological latitude and longitude of the place, with the help of Google Maps. So I googled a lot and came up with a function function (overlay,point).On calling this function on mouse click event the latitude and longitude are returned as point.lat() for latitude and point.lng() for longitude. This is the source code just the javascript part.
[UPDATE DEMO]

What I have done here is I have displayed the latitude and longitude on a information window of a GMarker. GMarker represents a point on the map. I may put something about GMarker later on.