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https://github.com/sahyagiri/osm_roads

geohash geolocation h5py hdf5 map-match map-matching openstreetmap pbf s2geometry

Last synced: about 1 month ago
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Host: GitHub
URL: https://github.com/sahyagiri/osm_roads
Owner: sahyagiri
License: mit
Created: 2022-01-29T12:35:39.000Z (almost 3 years ago)
Default Branch: main
Last Pushed: 2022-02-06T14:32:11.000Z (almost 3 years ago)
Last Synced: 2024-04-26T19:04:00.343Z (8 months ago)
Topics: geohash, geolocation, h5py, hdf5, map-match, map-matching, openstreetmap, pbf, s2geometry
Language: Python
Homepage: https://dossiers.page/whats-near-me-space-filling-curves-and-radix-tree-in-geospatial-applications/
Size: 24 MB
Stars: 0
Watchers: 2
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

        # 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

osm_roads=OsmRoads(hdf5_file_name="bengaluru.hdf5",openstreetmap_pbf_file_name="bengaluru.pbf")

## Closing the file handler 

## Opening the HDF5 osm file 

osm_roads=OsmRoads(hdf5_file_name="bengaluru.hdf5")

## Search for map matching with latitude and longitude 

osm_roads.get_closest_road(12.934005898750094, 77.61075025215672)

![Output](sample_output.png)

### How to get PBF files and slice them 

1. Visit the [OpenStreetMap Wiki](https://wiki.openstreetmap.org/wiki/Planet.osm). The file used in the example is downloaded from [GeoFabrik](https://download.geofabrik.de/asia/india.html), one of the mirrors of OSM and sliced using Osmium Tool

2. Install the Osmium Tool (works well in linux). sudo apt-get install -y osmium-tool

3. 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)