Trait basic_dsp_vector::window_functions::WindowFunction[−][src]

pub trait WindowFunction<T>: Sync where
    T: RealNumber, {
    fn is_symmetric(&self) -> bool;
    fn window(&self, n: usize, length: usize) -> T;
}

A window function for FFT windows. See https://en.wikipedia.org/wiki/Window_function for details. Window functions should document if they aren't applicable for Inverse Fourier Transformations.

The contract for window functions is as follows:

The second argument is of the function is always vector.points() and the possible values for the first argument ranges from 0..vector.points().
All real return values are allowed

Required Methods

`fn is_symmetric(&self) -> bool`

Indicates whether this function is symmetric around the y axis or not. Symmetry is defined as self.window(x) == self.window(-x).

`fn window(&self, n: usize, length: usize) -> T`

Calculates a point of the window function. Callers will ensure that n <= length.

Implementors

impl<T> WindowFunction<T> for TriangularWindow where T: RealNumber,
[src]
impl<T> WindowFunction<T> for HammingWindow<T> where T: RealNumber,
[src]