utiles_core/
constants.rs

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//! Constants module

/// MAX ZOOM (30)
pub const MAX_ZOOM: u8 = 30;

/// MAX ZOOM JS NUMBER (28)
pub const MAX_ZOOM_JS: u8 = 28;

/// Earth radius in meters
pub const EARTH_RADIUS: f64 = 6_378_137.0;

/// Earth circumference in meters
pub const EARTH_CIRCUMFERENCE: f64 = 2.0 * std::f64::consts::PI * EARTH_RADIUS;

/// Episilon for floating point comparison for web mercator
pub const EPSILON: f64 = 1e-14;

/// Episilon for floating point comparison for latlng
pub const LL_EPSILON: f64 = 1e-11;

/// Magic-number/application-id of geopackage
pub const GPKG_MAGIC_NUMBER: u32 = 0x4750_4b47;

/// Magic-number/application-id of geopackage v1
pub const GPKG_MAGIC_NUMBER_V1: u32 = 0x4750_3110;

/// Magic-number/application-id of mbtiles
pub const MBTILES_MAGIC_NUMBER: u32 = 0x4d50_4258;

/// Magic-number/application-id of utiles db (mbt magic + 1)
pub const UTILES_MAGIC_NUMBER: u32 = 0x4d50_4259;

/// Magic-number/application-id of mutiles (multi-utiles) db (mbt magic + 2)
pub const MUTILES_MAGIC_NUMBER: u32 = 0x4d50_425a;

/// Degrees to radians
pub const DEG2RAD: f64 = std::f64::consts::PI / 180.0;