Skip to main content

Geocoding - Region biasing

    Today we will have a look at a simple geocoding example wherein we will see the effects of region biasing on geocoding. First things first. What is region biasing in geocoding and why is it required; would be an obvious looking question here. The answer to this is pretty simple and straight. Region biasing means returning a geocoded address so that it falls in the region specified. Consider the example of the city named “Hyderabad” which is  present in India as well as Pakistan. Now, suppose that my target users are from India, then by using the region biasing property, the geocoder will always return the “Hyderabad” in India when a user enters a request for the same. I have taken the same example in the code, so that the region biasing geocoding concept would become much more clear.

    The code goes here…


    The code is pretty simple and does not need an explanation. The crux of the code lies in the following line of code.


    As you can see, the region property is set to “IN” which is a code for India. This is a hardcoded example, where the address to be geocoded is set to “Hyderabad”. Check out the line, var query = "Hyderabad". Now as the region is set to India the output that would be seen will be as seen in the result section above.

    Now change the region value to “PK”, i.e. Pakistan as,


    The output that you will see is as below:



    If you have any queries regarding the code feel free to leave a comment! Till the next Google Maps API v3 example…Keep mapping!
Labels:

Comments

  1. IndiaVote09August 30, 2011 at 1:34 AM

    I tried region=IN but still getting suggestions for outside india.
    I am using auto complete to show suggestion like google maps do

    ReplyDelete
    Replies
    1. Shreerang PatwardhanMarch 10, 2012 at 12:27 AM

      Hi IndiaVote09.

      Could you let me know what were you looking for (geocoding) with region=IN?

      Please respond and I would be happy to check and revert!

      Regards,
      Shreerang.
      Like us on Facebook at https://www.facebook.com/pages/Spatial-Unlimited/185149371538692

      Delete

Post a Comment

Please leave your comments here...

Recommended for You

Is Google cheating?

               I found this piece of interesting fact, accidently while browsing the internet. Google shows different maps for India, China and USA. Confused hun! Well don’t be…Just read on… In Indian version of Google Maps, you can see Arunachal Pradesh and eastern part of Jammu and Kashmir as integral part of India. In US version of Google Maps, you can see Arunachal Pradesh and Jammu and Kashmir as a disputed region. In the Chinese version of the Google Maps, you can see Arunachal Pradesh and JnK as not a part of India.                 Many people complained this issue to Google. A Google employee responded : “ We do show different versions of this border, because we required to by law. Indian law requires us to show it one way, and the Chinese law requires us to show it another way . If we can legally do so, we strive to present b...
5 comments
Read more

Retriving co-ordinates...

         We have seen 2 Google Maps API v3 examples wherein we have retrieved the latitude-longitude co-ordinates of the point of click on the map. In the first example we have displayed the co-ordinates in the information window and in the second , we have displayed the co-ordinates in a form in the information window.         Today we will create a code to retrieve the latitude longitude co-ordinates in a text box while simultaneously a marker appears on the map as well. So, here goes the code. <html> <head> <title> Google Maps API v3 - Adding marker on Click and retrieving the co-ordinates in a text box </title> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript"> var map;    //When using event as a parameter to a function declare map, strictly as a global variable fun...
5 comments
Read more

Playing with the markers and info window bubbles...

    In the last few posts, we have seen some marker examples and some information window examples. Now, lets do something interesting combining these two things. Just writing that "This is an info window" in the information bubble is not very interesting! And I know this...Have gone through the same phase!     So, today we will do something interesting! We will display the latitude- longitude co-ordinates of the point that the user clicks on the map! Doing this is not at all complex! Copy paste the following code and you will see for yourself a map coming to life!     The output of the above code looks as seen in the result section above! If you have any queries regarding the above code please comment on the blog post or feel free to contact me at my mail ID .
3 comments
Read more

A Giant called Google...

    Wondering what you will be reading in this post today and what is "Google Giant"! Well, I was working on a simple project a couple of months back and that is the time when I was amazed and by the size of data that Google Maps servers might be having! As most of the readers (developers and enthusiast included) would know or might have noticed, Google maps are rendered by stitching small images together. You must have observed this on quite a number of occasions, when you see grey tiles when you have a slow internet connection in particular. It takes time for the images or tiles as we call them to be displayed.     Let us try and estimate what could be the size of the Google Maps data! Before proceeding, let's make a few assumptions and considerations. 1. Let's consider the Google Street View maps only. 2. The zoom level that is considered for the calculations is 21 - the max zoom level allowed on Google Maps API. 3. All the numbers are just an esti...
6 comments
Read more

ES6 101 - Class

Spatial Unlimited changes to The UI Dev After being hosted on blogger 😣 for the last 6 years 📆, this page has finally been moved to Github.io This means a few things for you, dear reader! You will be redirected to the new page shortly! ⏩ ⏩ ⏩ Once crapy HTML is now better looking Markdown ! 😍 😍 The entire blog is a Github repo ! 😍 😍 Spatial Unlimited is now The UI Dev 😍 😍
Post a Comment
Read more