Struct peroxide::numerical::spline::CubicBSplineBases

pub struct CubicBSplineBases {
    pub ranges: Vec<Range<f64>>,
    pub bases: Vec<UnitCubicBasis>,
}

Uniform Cubic B-Spline basis functions

Example

use peroxide::fuga::*;
use core::ops::Range;
 
fn main() -> anyhow::Result<()> {
    let cubic_b_spline = CubicBSplineBases::from_interval((0f64, 1f64), 5);
    let x = linspace(0f64, 1f64, 1000);
    let y = cubic_b_spline.eval_vec(&x);
 
    let mut plt = Plot2D::new();
    plt.set_domain(x.clone());
 
    for basis in &cubic_b_spline.bases {
        plt.insert_image(basis.eval_vec(&x));
    }

    plt
        .insert_image(y)
        .set_xlabel(r"$x$")
        .set_ylabel(r"$y$")
        .set_style(PlotStyle::Nature)
        .tight_layout()
        .set_dpi(600)
        .set_path("example_data/cubic_b_spline.png")
        .savefig()?;
    Ok(())
}

Fields

ranges: Vec<Range<f64>>

bases: Vec<UnitCubicBasis>

Implementations

impl CubicBSplineBases

pub fn new(ranges: Vec<Range<f64>>, bases: Vec<UnitCubicBasis>) -> Self

Create new Cubic B-Spline basis functions

pub fn from_interval((a, b): (f64, f64), num_bases: usize) -> Self

Create new Cubic B-Spline basis functions for [a, b]

pub fn rescale(&mut self, scale_vec: &[f64]) -> Result<()>

Rescale all basis functions

Arguments

• scale_vec - scale vector

pub fn eval(&self, x: f64) -> f64

pub fn eval_vec(&self, x: &[f64]) -> Vec<f64>

Trait Implementations

impl Clone for CubicBSplineBases

fn clone(&self) -> CubicBSplineBases

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CubicBSplineBases

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

Formats the value using the given formatter.