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History

pukkamustard 3824ce36d3 Add extract of surveillance cameras in Switzerland		12 months ago
..
Readme.md	tools/osm_extractor: Tool to extract interesting OSM nodes	12 months ago
che.osm.surveillance.nt	Add extract of surveillance cameras in Switzerland	12 months ago
dune	tools/osm_extractor: Tool to extract interesting OSM nodes	12 months ago
osm_extractor.ml	tools/osm_extractor: Tool to extract interesting OSM nodes	12 months ago

Readme.md

osm_extractor

This is a small tool to extract interesting nodes from OpenStreetMap TTL Extracts as provided by the osm2rdf project.

Usage

osm_extractor reads N-Triples from standard input and writes N-Triples of interesting features (currently OSM nodes with the key man_made=surveillance) to standard output.

As the osm2rdf extracts are provided as Turtle files we need to first convert them to N-Triples (this will no longer be necessary as soon as the OCaml Turtle parser is available):

bunzip2 che.osm.ttl.bz2 | serdi -i turtle -o ntriples - | pv -c | dune exec ./osm_extractor.exe | tee che.osm.surveillance.nt