txt: ## dist_zef-bduggan-Geo-Polyline.md
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  # NAME
  
  Geo::Polyline - Encode and decode Google Maps polyline strings
  
  # SYNOPSIS
  
  ```
  use Geo::Polyline;
  
  my $polyline = polyline-encode([ [ 38.5, -120.2 ], [ 40.7, -120.95 ], [ 43.252, -126.453 ] ]);
  my @coords = polyline-decode($polyline);
  my $geojson = polyline-to-geojson($polyline);
  
  my $polyline6 = polyline6-encode([ [ 38.5, -120.2 ], [ 40.7, -120.95 ], [ 43.252, -126.453 ] ]);
  my @coords6 = polyline6-decode($polyline6);
  my $geojson6 = polyline6-to-geojson($polyline6);
  
  ```
  
  # DESCRIPTION
  
  Encode and decode polyline strings using the google polyline algorithm.
  
  The algorithm is described here: <https://developers.google.com/maps/documentation/utilities/polylinealgorithm>
  
  Polyline6 is a variant of the algorithm that uses 6 decimals of precision instead of 5. These variants can be used by either passing :v6, or using the polyline6- functions.
  
  # FUNCTIONS
  
  ## polyline-encode, polyline6-encode
  
  Encode an array of lon/lat coordinate pairs into a polyline string.
  
  ## polyline-decode, polyline6-decode
  
  Decode a polyline string into an array of lon/lat coordinate pairs.
  
  ## polyline-to-geojson, polyline6-to-geojson
  
  Convert a polyline string into a GeoJSON object.
  
  ## polyline-encode-coordinate, polyline-decode-coordinate, polyline6-encode-coordinate, polyline6-decode-coordinate
  
  Also exported; these encode an individual coordinate number to/from a string.
  
  # AUTHOR
  
  Brian Duggan
  