Struct EmissivityModel 

pub struct EmissivityModel {
    pub wavelengths_nm: Vec<f64>,
    pub emissivity: Vec<f64>,
    pub temp_coeff: f64,
    pub t_ref: f64,
}

Wavelength- and temperature-dependent emissivity (Kirchhoff’s law).

For a material in thermal equilibrium the emissivity equals the absorptivity: ε(λ, T) = α(λ, T).

Fields

wavelengths_nm: Vec<f64>

Emissivity samples at reference wavelengths (nm).

emissivity: Vec<f64>

Spectral emissivity values ε ∈ [0, 1].

temp_coeff: f64

Temperature coefficient of emissivity (1/K) — linear model.

t_ref: f64

Reference temperature for the tabulated values (K).

Implementations

impl EmissivityModel

pub fn new( wavelengths_nm: Vec<f64>, emissivity: Vec<f64>, temp_coeff: f64, t_ref: f64, ) -> Self

Construct an emissivity model.

pub fn emissivity_at(&self, lam_nm: f64, temp_k: f64) -> f64

Emissivity at wavelength lam_nm and temperature temp_k via linear interpolation and linear temperature correction.

pub fn total_emissivity(&self, temp_k: f64) -> f64

Total hemispherical emissivity integrated over the visible spectrum (380–780 nm) using the trapezoidal rule.

Trait Implementations

impl Clone for EmissivityModel

fn clone(&self) -> EmissivityModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EmissivityModel

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

Formats the value using the given formatter.