Enum FilterFunction 

pub enum FilterFunction {
    TopHat,
    Gaussian,
    SharpK,
}

Window (filter) functions for smoothing the density field.

Used in the computation of σ(R) to select the smoothing kernel.

use brahmanda::cosmology::FilterFunction;

let w = FilterFunction::TopHat.window(0.0);
assert!((w - 1.0).abs() < 1e-10);

Variants

TopHat

Real-space top-hat: W(x) = 3(sin x - x cos x) / x^3.

Gaussian

Gaussian: W(x) = exp(-x^2/2).

SharpK

Sharp k-space filter: W(x) = 1 if x < 1, else 0.

Implementations

impl FilterFunction

pub fn window(self, x: f64) -> f64

Evaluate the window function at x = kR.

use brahmanda::cosmology::FilterFunction;

// Top-hat at x=0 → 1
assert!((FilterFunction::TopHat.window(0.0) - 1.0).abs() < 1e-10);

// Gaussian at x=0 → 1
assert!((FilterFunction::Gaussian.window(0.0) - 1.0).abs() < 1e-10);

Trait Implementations

impl Clone for FilterFunction

fn clone(&self) -> FilterFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterFunction

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FilterFunction

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for FilterFunction

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FilterFunction

fn eq(&self, other: &FilterFunction) -> 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 FilterFunction

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 FilterFunction

impl Eq for FilterFunction

impl StructuralPartialEq for FilterFunction