Scala OpenStreetMap API

Geow is a lightweight API for processing OpenStreetMap elements.

Features:

• Lightweight domain model
• Parsing of Osm files (currently xml is supported)
• High-performance binary serialization
• Support for geometric denormalization (i.e. Osm objects contain the full geometry)
• Efficient and flexible geo-hashing utilities

Planned:

• Pbf support

Installation

SonaType deployment is under way. In the meantime you can use Geow by cloning the repo and building from source:

git clone https://github.com/geow-org/api.git
sbt update
sbt publishLocal

And then add the dependency to your build.sbt:

libraryDependencies ++= Seq(
  "org.geow" %% "api" % "0.1",
)

Usage

Parsing

Stream Osm files to process Osm objects. Currently files in .osm and .osm.bz2 format are supported. Pbf support is planned for the future.

  
  import org.geow.parser.OsmParserFactory._

  // create a parser from a file
  val parser = createParser(fileName)
  
  // pull openstreetmap data
  for (elem <- parser) println(elem)

Serialization

Serialize and deserialize Osm objects for network transfer.

  import org.geow.model.serializer.OsmSerializer._
  
  ... parse or create an osm object element
  
  val serialized = toBinary(osmObject)
  val deserialized = fromBinary(serialized)

Performance

See the Benchmarks wiki page.

Contributing

If you like to contribute, please create an issue and send a pull request. For more information on pull requests see the Github pull request tutorial.