Struct SpectralLocus 

pub struct SpectralLocus { /* private fields */ }

Represents the spectral locus, which includes:

• An observer for spectral data.
• A vector of tuples where each tuple contains:
  • A wavelength (usize).
  • A chromaticity coordinate ([f64; 2]).

Implementations

impl SpectralLocus

pub fn new(observer: Observer) -> Self

pub fn contains(&self, point: [f64; 2]) -> bool

pub fn observer(&self) -> Observer

pub fn iter_range_with_slope<'a>( &'a self, range: impl RangeBounds<usize>, step: usize, ) -> SpectralLocusSlopeIterator<'a>

Iterate over the spectral locus points over a given wavelength range and step size producing the spectral locus coordinates (f64, f64) and slope angles f64 in radians. The slope is calculated using a quadratic curve fit for interior points, and a simple difference for the endpoints.

This iterator is useful for applications that require not only the locus points, but also the direction of the locus at each point, for example when plotting tick marks along the spectral locus in plots, to find its boundaries.

Item

Each iteration yields a tuple:

• ((f64, f64), f64)
  • The chromaticity coordinate (x, y) of the locus point.
  • The slope angle (in radians) at that point.

pub fn polygon(&self) -> &Polygon

Trait Implementations

impl<'a> IntoIterator for &'a SpectralLocus

type Item = (f64, f64)

The type of the elements being iterated over.

type IntoIter = SpectralLocusIterator<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.