Fast and precise time zone by geo coordinates lookup

An earth-simulation environment with ActiveRecord models and data

Use together GeoRuby, Rgeo, Geokit, Proj4j (and others)

Encapsulates the CitySDK api.

"A small tool for reading United States Census TIGER/Line Shapefiles."

Point and UTM transformations for GeoKit.

Mapfish Appserver is a framework for web mapping applications using OGC standards and the Mapfish protocol.

Provides native implementations of Vincenty ellipsoidal functions and a native implementation of a ray casting algorithm to detect if a point is contained in a polygon.

Use HeyDan to download, munge and manage data for jurisdictions

Logstash filter to convert WKT geography shapes to GeoJSON.

A gem to convert Postgis geometry columns to GeoRuby Simple Features in Sequel.

Specification and base implementation of the Spark API parsing system.

Write Tacview data to PostGIS database

I made this gem because the current Google Maps API for time zones is not completely precise when it comes to US time zones. There are certain esoteric time zone boundaries in the US for which the Google Maps time zone API does not account perfectly.

Provides analysis of (geo)data files.