https://github.com/zaczero/polyline-rs

Fast Google Encoded Polyline encoding & decoding in Rust for Python
https://github.com/zaczero/polyline-rs

decoding encoding gis google google-maps googlemaps mapbox openstreetmap polyline polyline-decoder polyline-encoder

Last synced: 8 days ago
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Fast Google Encoded Polyline encoding & decoding in Rust for Python

• Host: GitHub
• URL: https://github.com/zaczero/polyline-rs
• Owner: Zaczero
• License: unlicense
• Created: 2024-10-29T20:37:40.000Z (about 2 months ago)
• Default Branch: main
• Last Pushed: 2024-10-30T02:26:13.000Z (about 2 months ago)
• Last Synced: 2024-12-13T19:51:52.222Z (13 days ago)
• Topics: decoding, encoding, gis, google, google-maps, googlemaps, mapbox, openstreetmap, polyline, polyline-decoder, polyline-encoder
• Language: Rust
• Homepage: https://pypi.org/p/polyline-rs
• Size: 13.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# polyline-rs

[![PyPI - Python Version](https://shields.monicz.dev/pypi/pyversions/polyline-rs)](https://pypi.org/project/polyline-rs)

[![Liberapay Patrons](https://shields.monicz.dev/liberapay/patrons/Zaczero?logo=liberapay&label=Patrons)](https://liberapay.com/Zaczero/)

[![GitHub Sponsors](https://shields.monicz.dev/github/sponsors/Zaczero?logo=github&label=Sponsors&color=%23db61a2)](https://github.com/sponsors/Zaczero)

Fast Google Encoded Polyline encoding & decoding in Rust. A Python PyO3 library with out-of-the-box support for both (lat, lon) and (lon, lat) coordinates.

[Encoded Polyline Algorithm Format](https://developers.google.com/maps/documentation/utilities/polylinealgorithm)

## Installation

The recommended installation method is through the PyPI package manager. The project is implemented in Rust and several pre-built binary wheels are available for Linux, macOS, and Windows, with support for both x64 and ARM architectures.

```sh

pip install polyline-rs

```

## Basic usage

```py

from polyline_rs import encode_latlon, encode_lonlat, decode_latlon, decode_lonlat

line = encode_latlon([(38.5, -120.2), (40.7, -120.95), (43.252, -126.453)], 5)

assert line == "_p~iF~ps|U_ulLnnqC_mqNvxq`@"

coords = decode_latlon(line, 5)

assert coords == [(38.5, -120.2), (40.7, -120.95), (43.252, -126.453)]

coords2 = decode_lonlat(line, 5)

assert coords2 == [(-120.2, 38.5), (-120.95, 40.7), (-126.453, 43.252)]

```