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google/open-location-code

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Open Location Code

Open Location Code is a geocoding library and toolset used to transform global latitude and longitude coordinates into standardized, human-readable alphanumeric digital addresses and back again. It functions as an offline location coding system that generates unique identifiers for any location on Earth, specifically providing digital addresses for areas where formal street addresses or postal systems are missing.

The system operates as a stateless algorithmic process, allowing coordinates to be encoded and decoded without the need for network access, internet connections, or external database lookup tables. It utilizes reference-based shortening to reduce the length of geographic identifiers by omitting common prefixes based on nearby reference points.

The library includes utilities for bidirectional geocode conversion and code manipulation. These capabilities cover the validation of location strings, the recovery of full codes from shortened versions, and the translation of coordinates into a hierarchical grid of alphanumeric characters.

Features

  • Digital Addressing Systems - Creates unique alphanumeric identifiers for locations that lack formal street addresses or postal systems.
  • Geocode Decoders - Open Location Code translates alphanumeric location codes into latitude and longitude coordinates without requiring a network connection.
  • Geographic Coordinate Encoders - Provides the core capability of encoding global coordinates into standardized alphanumeric digital addresses.
  • Global Location Identifiers - Creates unique and precise digital identifiers for any location on Earth where street addresses are missing.

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4,329 stars·527 forks·Java·Apache-2.0·29 views
  • Geocoding Libraries - Provides a comprehensive library for converting latitude and longitude coordinates into short alphanumeric digital addresses and back.
  • Offline Geolocation Indexes - Translates location codes back into coordinates locally without requiring an internet connection or external database.
  • Custom Alphabet Encodings - Implements a custom alphabet encoding to transform grid indices into concise, human-readable location strings.
  • Coordinate-to-Code Encoders - Encodes global map coordinates into a standardized short-code format for use as digital addresses.
  • Spatial Partitioning Systems - Divides the global map into a hierarchy of nested squares to map coordinates to alphanumeric characters.
  • Stateless Algorithm Implementations - Implements mathematical formulas to calculate coordinates from strings without requiring any external state or database.
  • Bit-Shifting Arithmetic - Uses bit-shifting and binary logic to convert floating point coordinates into discrete grid cell identifiers.
  • Offline Geocoding Systems - Operates as a coordinate-to-code system without network access or external lookup tables to resolve geographic positions.
  • Spatial Precision Levels - Nests smaller grid cells within larger ones to allow for varying levels of precision and zoom.
  • Geocode Recovery - Restores a full location code by combining a shortened version with a nearby reference location.
  • Geographic Identifier Management - Reduces the length of geographic identifiers using local reference points to make addresses easier for humans to share.
  • Geographic Code Manipulators - Open Location Code reduces the length of a location code by using a nearby reference point to omit leading characters.
  • Reference-Based Identifiers - Omits the common prefix of a location code by storing a nearby reference point for local recovery.
  • Geographic Code Validators - Verifies whether a string is a valid sequence or a complete and well-formed location code.
  • Star history

    Star history chart for google/open-location-codeStar history chart for google/open-location-code

    How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

    Projects sharing features with Open Location Code

    These projects share indexed features with Open Location Code. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
    • geopy/geopygeopy avatar

      geopy/geopy

      4,819View on GitHub↗

      geopy is a Python geocoding library and geolocation client used to convert human-readable addresses into geographic coordinates and resolve coordinates back into street addresses using various third-party web services. The library provides a consistent provider-based interface that abstracts multiple external geocoding services, allowing for interchangeable backends. It includes built-in request rate limiting and asynchronous client interfaces to manage API call frequency and execute concurrent lookups without halting execution. Beyond geocoding, the project includes geospatial utilities for

      Pythongeocodergeocodingpython
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    • geocoder-php/geocodergeocoder-php avatar

      geocoder-php/Geocoder

      3,975View on GitHub↗

      Geocoder is a PHP library for converting addresses to geographic coordinates and coordinates back into addresses using various third-party services. It functions as a multi-provider geocoding wrapper and a reverse geocoding engine, providing an abstraction layer to manage multiple geocoding APIs. The project allows for switching between providers or chaining requests for failover to ensure high availability. It also serves as a GeoIP location resolver, translating IP addresses into geographic coordinates and location details through either remote services or local binary databases. The libra

      PHPgeocoder
      View on GitHub↗3,975
    • alexreisner/geocoderalexreisner avatar

      alexreisner/geocoder

      6,446View on GitHub↗

      This is a Ruby toolkit for converting addresses to geographic coordinates and performing reverse geocoding via multiple external API providers. It provides a library for integrating location services into Ruby applications, including an IP geolocation tool to translate IP addresses into coordinates, city names, and country data. The project includes a command line interface for bulk geocoding of database records with integrated rate limiting and a geospatial query engine for calculating distances and performing radius or bounding box searches. It also features a mocking framework that provide

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    • dylang/shortiddylang avatar

      dylang/shortid

      5,715View on GitHub↗

      shortid is a library for creating compact, non-sequential strings used as unique identifiers for database records and public URLs. It functions as a URL-friendly identifier utility designed to produce short alphanumeric strings. The project allows for the use of a custom alphabet to control the visual appearance of identifiers and avoid ambiguity. This custom character set mapping ensures that generated keys meet specific formatting or branding requirements. The system includes capabilities for non-sequential key generation to prevent resource enumeration, as well as tools to validate whethe

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    Frequently asked questions

    What does google/open-location-code do?

    Open Location Code is a geocoding library and toolset used to transform global latitude and longitude coordinates into standardized, human-readable alphanumeric digital addresses and back again. It functions as an offline location coding system that generates unique identifiers for any location on Earth, specifically providing digital addresses for areas where formal street addresses or postal systems are missing.

    What are the main features of google/open-location-code?

    The main features of google/open-location-code are: Digital Addressing Systems, Geocode Decoders, Geographic Coordinate Encoders, Global Location Identifiers, Geocoding Libraries, Offline Geolocation Indexes, Custom Alphabet Encodings, Coordinate-to-Code Encoders.

    Which projects share features with google/open-location-code?

    Projects with overlapping indexed features include: geocoder-php/geocoder — Geocoder is a PHP library for converting addresses to geographic coordinates and coordinates back into addresses using… geopy/geopy — geopy is a Python geocoding library and geolocation client used to convert human-readable addresses into geographic… alexreisner/geocoder — This is a Ruby toolkit for converting addresses to geographic coordinates and performing reverse geocoding via… dylang/shortid — shortid is a library for creating compact, non-sequential strings used as unique identifiers for database records and… googlemaps/google-maps-services-python — This project is a Python client library for interacting with Google Maps web services to retrieve geospatial, routing,… hpneo/gmaps — gmaps is a library that provides a wrapper for the Google Maps API, serving as a geospatial data toolkit and…