https://github.com/twpayne/go-polyline

Package polyline implements a Google Maps Encoding Polyline encoder and decoder.
https://github.com/twpayne/go-polyline

decoding encoding geospatial gis go golang google-maps polyline

Last synced: 3 days ago
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Package polyline implements a Google Maps Encoding Polyline encoder and decoder.

• Host: GitHub
• URL: https://github.com/twpayne/go-polyline
• Owner: twpayne
• License: bsd-2-clause
• Created: 2014-04-27T18:32:05.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2024-12-27T15:44:14.000Z (about 1 month ago)
• Last Synced: 2025-01-30T12:07:25.908Z (10 days ago)
• Topics: decoding, encoding, geospatial, gis, go, golang, google-maps, polyline
• Language: Go
• Homepage:
• Size: 65.4 KB
• Stars: 111
• Watchers: 6
• Forks: 30
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-polyline

[![Build Status](https://github.com/twpayne/go-polyline/workflows/Test/badge.svg)](https://github.com/twpayne/go-polyline/actions?query=workflow%3ATest)

[![PkgGoDev](https://pkg.go.dev/badge/github.com/twpayne/go-polyline)](https://pkg.go.dev/github.com/twpayne/go-polyline)

[![Coverage Status](https://coveralls.io/repos/github/twpayne/go-polyline/badge.svg)](https://coveralls.io/github/twpayne/go-polyline)

Package `polyline` implements a Google Maps Encoding Polyline encoder and decoder.

## Encoding example

```go

func ExampleEncodeCoords() {

	coords := [][]float64{

		{38.5, -120.2},

		{40.7, -120.95},

		{43.252, -126.453},

	}

	fmt.Println(string(polyline.EncodeCoords(coords)))

	// Output: _p~iF~ps|U_ulLnnqC_mqNvxq`@

}

```

## Decoding example

```go

func ExampleDecodeCoords() {

	buf := []byte("_p~iF~ps|U_ulLnnqC_mqNvxq`@")

	coords, _, _ := polyline.DecodeCoords(buf)

	fmt.Println(coords)

	// Output: [[38.5 -120.2] [40.7 -120.95] [43.252 -126.453]]

}

```

## License

BSD-2-Clause