This project aims to provide a generalized solution for performing basic indexing and querying of geospatial data in Google App Engine.

At the core, this solution utilizes geohash-like objects called geocells.

Currently, only single-point entities and two types of basic geospatial queries on those entities are supported:

• bounding box queries
• proximity (nearest-n) queries

For another approach to geo queries in Google App Engine, see the mutiny project and its associated article, or the geohash-based geodatastore project.

PyPi

Thanks to the awesome work of Tobias Rodäbel, this library is now available at http://pypi.python.org/pypi/geomodel!

Java

Thanks to the awesome work of Alexandre Gellibert, this library is now available for Google App Engine for Java at http://code.google.com/p/javageomodel!

PubSchools Demo Application

To get an idea of how to use GeoModel in a real world application, check out the PubSchools demo and its source code. Below is a screenshot of a sample query for public schools in San Francisco, CA: