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Project description
OpenStreetMap Roads
The package takes an openstreetmap pbf file and converts it to a geohash prefix based hdf5 file. It provides an api to then do a fast map matching for any latitude, longitude that comes under the bounding box of the pbf file.
Installation
pip install osm-roads
Importing and loading the pbf file
from osm_roads.osm_roads import OsmRoads
way_finder = OsmRoads() way_finder.load_osm_pbf("bengaluru.pbf")
Search for map matching with latitude and longitude
way_finder.get_road_type(12.934005898750094, 77.61075025215672)
Saving the current PBF to a trie
way_finder.export_trie('bangalore_updated.trie')
Loading the trie from file
way_finder.load_trie('bangalore_updated.trie')
How to get PBF files and slice them
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Visit the OpenStreetMap Wiki. The file used in the example is downloaded from GeoFabrik, one of the mirrors of OSM and sliced using Osmium Tool
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Install the Osmium Tool (works well in linux). sudo apt-get install -y osmium-tool
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Run "osmium extract -b 77.343833,13.159493,77.905509,12.830316 southern-zone-latest.osm.pbf -o bengaluru.pbf" (replace the bounding box lat,lons as per your need)
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