Overview
Polyline_do is a Dart package that implements the polyline encoding algorithm, enabling efficient compression and decompression of geographic coordinates. It is designed for use in geolocation applications where transmitting or storing large lists of latitude and longitude points needs to be optimized. The package supports both encoding coordinates into compact polyline strings and decoding them back into coordinate lists. It is particularly useful in mapping services, route tracking, and GPS data handling. The implementation follows the standard Google Polyline Encoding Algorithm, ensuring compatibility with existing systems.
Use cases
- Map route encoding
- GPS track compression
- Geospatial data transmission
- Route visualization in apps
- Offline map data storage
Key features
- Efficient polyline encoding
- Decoding of encoded polylines
- Complies with Google Polyline standard
- Lightweight and fast
- Supports high-precision coordinates
Suitable for
- Mobile apps with maps
- Location-based services
- Data-efficient geospatial transfers
- Route planning tools
- Apps handling large coordinate sets
Considerations
- Limited to 2D coordinates (lat/lng)
- No built-in support for elevation
- Requires manual handling of coordinate precision
- Not suitable for real-time streaming without batching
- Depends on external library for full functionality