Getting Started

PolylineAlgorithm is a lightweight, Google-compliant polyline encoding/decoding library for .NET Standard 2.1 and above.
Follow these simple steps to get started, encode and decode polylines, and configure advanced features.

Installation

Install via the .NET CLI:

dotnet add package PolylineAlgorithm

Or via NuGet Package Manager:

Install-Package PolylineAlgorithm

Basic Usage

Encoding Coordinates

using PolylineAlgorithm;

var coordinates = new List<Coordinate>
{
    new Coordinate(48.858370, 2.294481),    // Eiffel Tower
    new Coordinate(51.500729, -0.124625)    // Big Ben
};

var encoder = new PolylineEncoder();
Polyline encoded = encoder.Encode(coordinates);

Console.WriteLine(encoded.ToString()); // Prints the encoded polyline string

Decoding a Polyline

using PolylineAlgorithm;

var decoder = new PolylineDecoder();
Polyline polyline = Polyline.FromString("yseiHoc_MwacOjnwM"); // Sample encoded string

IEnumerable<Coordinate> decoded = decoder.Decode(polyline);

// Show decoded coordinates
foreach(var coord in decoded)
{
    Console.WriteLine($"{coord.Latitude}, {coord.Longitude}");
}

Customizing and Advanced Features

Use PolylineEncodingOptionsBuilder to customize settings (buffer size, logging, etc.)
Implement custom encoder/decoder types for advanced coordinate representations
See API reference for details