http://simonwillison.net/2010-03-02T20:12:09+00:00Simon Willison2010-03-02T20:12:09+00:002010-03-02T20:12:09+00:00https://simonwillison.net/2010/Mar/2/geospatial/#atom-tag

<p><strong><a href="http://www.mongodb.org/display/DOCS/Geospatial+Indexing">Geospatial Indexing in MongoDB</a></strong></p> New in version 1.3.3. Handles “order by distance from” queries using a geohash approach under the hood, automatically searching nearby grid squares until the correct number of results have been gathered. Bounding box search is planned for a future release. <p><small></small>Via <a href="http://groups.google.com/group/mongodb-user/browse_thread/thread/48f6c7defd08e880">MongoDB 1.3.3 Released</a></small></p> <p>Tags: <a href="https://simonwillison.net/tags/geohash">geohash</a>, <a href="https://simonwillison.net/tags/geospatial">geospatial</a>, <a href="https://simonwillison.net/tags/mongodb">mongodb</a></p>

2008-06-08T09:35:05+00:002008-06-08T09:35:05+00:00https://simonwillison.net/2008/Jun/8/geohash/#atom-tag

<p><strong><a href="http://www.geospatialsemanticweb.com/2008/05/29/geohash-for-spatial-index-and-search">Geohash for spatial index and search</a></strong></p> Nice, clear explanation of what a Geohash is. It’s a way of encoding a lat/lon position as a short string, with the useful property that similar co-ordinates with more or less significant figures share a common prefix in their geohash. <p>Tags: <a href="https://simonwillison.net/tags/geohash">geohash</a></p>