Overview
The point_in_polygon package is a Flutter utility designed to determine whether a given point lies inside, outside, or on the boundary of a polygon. It provides efficient geometric calculations using robust algorithms suitable for applications involving spatial data, such as mapping, GIS, and interactive graphics. The package supports multiple platforms including Android, iOS, Web, macOS, Windows, and Linux, ensuring cross-platform consistency. It is lightweight and integrates seamlessly with Flutter projects via pub.dev.
Use cases
- Geospatial analysis
- Interactive map features
- Collision detection in games
- Boundary validation for user input
- Polygon-based UI interactions
Key features
- Fast point-in-polygon testing
- Cross-platform compatibility
- Simple API integration
- Supports complex polygons
- Accurate boundary detection
Suitable for
- Developers working with geographic data
- Game developers needing hit detection
- UI designers implementing polygonal layouts
- Applications requiring spatial queries
- Flutter apps with interactive maps
Considerations
- Performance may vary with very large polygons
- Requires valid polygon coordinates
- Not optimized for real-time high-frequency checks
- Limited to 2D geometry
- No built-in coordinate transformation support