Imposm.geocoder

Imposm.geocoder is a geocoder for OpenStreetMap data. It is developed as a libary and can be used to convert addresses into coordinates.

Right now the geocoder is still in an early beta state and some code is optimized for German addresses. Be aware that the API will change in the future.

It depends on an PostgreSQL/PostGIS database and the import tool Imposm. It is developed and supported by Omniscale. The libary runs on Linux or Mac OS X and is released as open source under the Apache License 2.0.

Features

Geocode addresses

You can calculate a coordinate for an address, city, street, postcode and country or a combination of these.

Fuzzy string matching

The geocoder performs a fuzzy string match to search for data in your database. This tolerates spelling errors.

Lookup names

Defines a new column type for places and removes location-describing words and suffixes.

Merge line segements

Merge line segments of the same road to a single line string to avoid repeated reaults.

Development

The source code is available at: https://bitbucket.org/quiqua/imposm.geocoder/

You can report any issues at: https://bitbucket.org/quiqua/imposm.geocoder/issues

Contents

• Installation
  • Requirements
  • Installation
• Import and Preparation
  • Create database
  • Enable Trigram Indexing
  • Reading and Writing data
  • Prepare the data
• Usage
  • Config
  • Geocode
• Data Mapping
  • Additional Tables
  • Additional Column Type
  • Required Mapping Entries