Struct VisibilityCriteria 

pub struct VisibilityCriteria {
    pub min_altitude: f64,
    pub min_elongation: f64,
}

Configurable moon visibility criteria for hilal observation.

Controls the thresholds used when determining if the crescent moon is visible. Default values match MABIMS (Indonesia/Malaysia/Brunei/Singapore).

Fields

min_altitude: f64

Minimum moon altitude above horizon (degrees). Default: 3.0

min_elongation: f64

Minimum elongation between sun and moon (degrees). Default: 6.4

Implementations

impl VisibilityCriteria

pub fn new(min_altitude: f64, min_elongation: f64) -> Self

Creates new visibility criteria with custom thresholds.

pub fn mabims() -> Self

MABIMS criteria (default for Southeast Asia).

pub fn istanbul_1978() -> Self

Istanbul 1978 criteria (more conservative).

Trait Implementations

impl Clone for VisibilityCriteria

fn clone(&self) -> VisibilityCriteria

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VisibilityCriteria

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for VisibilityCriteria

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for VisibilityCriteria

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for VisibilityCriteria

fn eq(&self, other: &VisibilityCriteria) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for VisibilityCriteria

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for VisibilityCriteria

impl StructuralPartialEq for VisibilityCriteria