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Geospatial JDO queries on the Google AppEngine (+ GWT)

From time to time one might feel the urgent need to execute geospatial queries on the Google AppEngine. Thinking in common SQL this is pretty easy, just a combined WHERE clause:SELECT * FROM t_spatialdataWHERE latitude >= south AND latitude <=
Nico's Guide to the Code
 
tags: geo jdo gwt gql
May 30 2010 09:50 PM
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Does open geodata matter?

I said this quite a while ago. But looks like finally others are getting the idea too: Here is the problem: These efforts at creating an underlying database of places are duplicative, and any competitive advantage any single company gets from being more
Rearranging the Deckchairs
 
Frank
tags: wots geo
May 22 2010 04:55 AM
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YQL Geo library – all your geo needs in pure JavaScript

I just finished doing some talks on geo hacking (slides are available here) and how to use some of the Geo technologies Yahoo and Google provide as part of a University gig in Atlanta. As a lot of the students liked the idea of APIs like GeoPlanet and
Ajaxian » Front Page
 
Chris Heilmann
tags: front page geo javascript library
Mar 11 2010 08:44 PM
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Rotating maps with CSS3 and jQuery

One of the things I always want to do with online maps is rotate them – I am used to that with real, physical maps. As physical maps become a lot more clever these days (for example have you seen the zoomable map?) it is time we can do this with
Ajaxian » Front Page
 
Chris Heilmann
tags: css front page geo jquery
Feb 09 2010 07:59 PM
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Word on the Street blog

Word on the Street now has a blog.
Rearranging the Deckchairs
 
Frank
tags: wots geo iphone blog
Nov 10 2009 05:25 PM
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Make GeoKit use the spatial features of the underlying database

GeoKit is a great rails plugin and ruby gem for dealing with geodata for mapping applications. I use it on the backend for the Word on the Street app) (link is to iTunes). However, with millions of mappable objects, geokit’s performance takes a
Rearranging the Deckchairs
 
Frank
tags: wots geo rails
Aug 30 2009 04:25 PM