Comments on: Google using Geohash http://blog.labix.org/2008/05/20/google-using-geohash by Gustavo Niemeyer Mon, 16 Jan 2012 12:12:57 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: John http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-63318 John Fri, 10 Apr 2009 12:10:07 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-63318 Hi I'm a fan of your Geohash but I have a simple idea to shorten the code further and thus make it easy to remember the problem is that your base location is the world and thus your starting point is too wide an area. For day to day use it can be a much smaller hash for example I am in Ireland which means i am within an area thats probably a range of 4 degrees of longitude and 6 degree's of latitude. This is a much smaller area to define. Thus knowing Im in ireland you can refine the geohash and assume the initial significant figures and then use a shorter string and be as accurate. So what I'm suggesting is you can prepare look up tables for each country or state and then prepare a geohash minus the offsets for that country. obviously you could go further and define area's even smaller. probably the easiest way to define a country area is to define an area as something like ireland is a country contained within a bounding box of between 50 and 54 degrees north and between 5 and 9 degrees west. and the base offset would be 50 north and 5 west. Hi I’m a fan of your Geohash but I have a simple idea to shorten the code further and thus make it easy to remember the problem is that your base location is the world and thus your starting point is too wide an area.

For day to day use it can be a much smaller hash for example I am in Ireland which means i am within an area thats probably a range of 4 degrees of longitude and 6 degree’s of latitude. This is a much smaller area to define. Thus knowing Im in ireland you can refine the geohash and assume the initial significant figures and then use a shorter string and be as accurate.
So what I’m suggesting is you can prepare look up tables for each country or state and then prepare a geohash minus the offsets for that country. obviously you could go further and define area’s even smaller.
probably the easiest way to define a country area is to define an area as something like ireland is a country contained within a bounding box of between 50 and 54 degrees north and between 5 and 9 degrees west. and the base offset would be 50 north and 5 west.

]]> By: Taylor http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-40133 Taylor Mon, 02 Jun 2008 13:24:11 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-40133 Gustavo, Your alg. is refreshingly elegant. I was interested in Locapoint, but that one is licensed commercialy. I'm hoping it becomes a defacto URL standard for places. Taylor Gustavo,

Your alg. is refreshingly elegant. I was interested in Locapoint, but that one is licensed commercialy. I’m hoping it becomes a defacto URL standard for places.

Taylor

]]> By: Eduardo Willians http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-39714 Eduardo Willians Tue, 27 May 2008 21:42:32 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-39714 Awesome! Congrats! Awesome! Congrats!

]]> By: LKRaider http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-39357 LKRaider Sat, 24 May 2008 06:32:27 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-39357 Awesome! Well done :) Awesome! Well done :)

]]> By: Rodrigo Stulzer http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-39270 Rodrigo Stulzer Fri, 23 May 2008 12:06:49 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-39270 Congratulations!! Congratulations!!

]]> By: Leandro Lameiro http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-39060 Leandro Lameiro Wed, 21 May 2008 14:29:27 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-39060 Awesome. Must be really exciting to see that Google and xkcd are using/talking about something you invented. Congratulations! Best Regards Leandro Lameiro http://lameiro.wordpress.com/ Awesome. Must be really exciting to see that Google and xkcd are using/talking about something you invented.

Congratulations!

Best Regards
Leandro Lameiro
http://lameiro.wordpress.com/

]]> By: Roberto http://blog.labix.org/2008/05/20/google-using-geohash/comment-page-1#comment-39048 Roberto Wed, 21 May 2008 12:04:13 +0000 http://blog.labix.org/2008/05/20/google-using-geohash/#comment-39048 Wow, this blew my mind -- don't you think it's fantastic when people use something you built in a way you never foresaw? Congratulations! Wow, this blew my mind — don’t you think it’s fantastic when people use something you built in a way you never foresaw?

Congratulations!

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