Waqti vs Others
An honest, direct architectural and functional comparison between standard open-source prayer libraries and Waqti's high-fidelity calculation engine.
1. Astronomical Engine & Precision
| Feature Area | Waqti (Our Engine) | Other Libraries |
|---|---|---|
| Algorithm Foundation | High-fidelity planetary integrations tested against NASA JPL DE441 oracles for sub-arcsecond accuracy. | Basic implementations, often a highly simplified form of Meeus' Astronomical Algorithms. |
| Lunar Engine | Advanced ELP-2000/82B model for high-precision lunar phase extraction. | Generic, truncated 3-term equations and simplified mean lunar longitudes. |
| Nutation & Obliquity | Full IAU series with strict type-safety preventing mathematical overflow. | Truncated to absolute bare minimum approximations (typically a 4-term constant). |
2. Earth Geometry & Refraction
| Feature Area | Waqti (Our Engine) | Other Libraries |
|---|---|---|
| Earth Model | Pure WGS-84 Ellipsoidal Geometry for accurate horizon distance metrics. | Assumption of a perfectly Flat or Spherical Earth. |
| Elevation & Geography | Terrain-aware rendering with precise altitude scaling. Accounts for mountain elevations. | Fixed elevation. Ignores topographic variation completely. |
| Atmospheric Refraction | Dynamic extrapolations using standard temperature, pressure, and specific Earth k-factors. | Static altitude check locking sunrise/sunset to a generic -0.833° globally. |
| Boundary Polygons | Shuruk and Ishraq assessed via structural bounding boxes for the safest earliest possible time. | Calculates using a single generic coordinate centroid. |
3. Architecture & Functional Scope
| Feature Area | Waqti (Our Engine) | Other Libraries |
|---|---|---|
| Execution Flow | Decoupled architecture (State Orchestrator → Stateless Physics Engine). | Monolithic logic packed inside script-like massive closures. |
| Event Output | Holistic timeline widget outputs with complex fallback indicators, day phases, and sun/moon trajectories. | Hard-limited minimum: Fajr, Dhuhr, Asr, Maghrib, Isha. |
| Extreme Latitudes | Specialized abstract Strategies naturally handle boundary paradoxes gracefully. | Rudimentary `if` checks directly packed into the calculation baseline. |
4. Method Extensibility
| Feature Area | Waqti (Our Engine) | Other Libraries |
|---|---|---|
| Juristic Methodologies | Natively maps 25+ extensive juristic authorities out-of-the-box. | Tracks ~11 generic/conventional methods. |
| Dynamic Resolution | Effortlessly routes algorithms that dynamically shift twilight percentages (e.g., Ijtihad, Polar, Ditib). | Highly rigid static configuration variables incapable of shifting contexts. |
Conclusion
Most standard libraries are functional but elementary. While adequate for lightweight applications, their rigid parameter architecture prevents them from scaling to support robust global juristic standards. Further compounded by their complete bypass of geographic altitude modeling and lack of WGS-84 ellipsoidal precision, they are unsuitable for high-precision, theological safety applications. Waqti acts as an industrial, high-fidelity alternative providing verifiable space-agency tier logic married with rigorous Islamic jurisprudence boundaries.