From: Luis Parravicini <lparravi@...>
Date: 2009-06-19T02:34:12+09:00
Subject: Re: Mark GPS coordinates on image file

Hi

On Thu, Jun 18, 2009 at 11:45 AM, Florian Weingarten<usenet@hackvalue.de> wrote:
> I am looking for a way to create a map with GPS coordinates. I have a list with
> coordinates and I would like to display each of them as a small little dot in an
> image showing the earth (similar to those little image files Wikipedia uses for
> cities).
>
> Is there something like that? Maybe as a gem?

I don't know any gem to do that, but you have to make a projection of
the <lat,lng> pair to a <x,y> one. There are several methods, see
http://en.wikipedia.org/wiki/Map_projection . Another option, if you
don't need much accuracy, is to use the coordinates directly as x,y.

Bye

-- 
Luis Parravicini
http://ktulu.com.ar/blog/