Calculating bbox & coordinates for getfeatureinfo query with PHP:
Well, nobody replied to my question about this, but in the meantime I found some other resources and figured it out. I posted a short note about it on the google maps group here: http://groups.google.com/group/Google-Maps-API/browse_thread/thread/ 1da5ef9409649e4f/e6586f8fdf034e90#e6586f8fdf034e90
nelson
