| Description |
polyline is a Python implementation of Google’s Encoded Polyline Algorithm
Format. It is essentially a port of Mapbox polyline with some additional features.
Installation
polyline can be installed using pip:
$ pip install polyline
Starting from v2.0.0 only Python 3.7 and above is supported. For Python 2 support, please install v1.4.0:
$ pip install polyline==1.4.0
API Documentation
Encoding
To get the encoded polyline representation of a given set of (lat, lon) coordinates:
import polyline
polyline.encode([(38.5, -120.2), (40.7, -120.9), (43.2, -126.4)], 5)
This should return _p~iF~ps|U_ulL~ugC_hgN~eq`@.
You can set the required precision with the optional precision parameter. The default value is 5.
You can encode (lon, lat) tuples by setting geojson=True.
Decoding
To get a set of coordinates represented by a given encoded polyline string:
import polyline
polyline.decode(u{~vFvyys@fS], 5)
This should return [(40.63179, -8.65708), (40.62855, -8.65693)] in (lat, lon) order.
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