Struct SliceWeigher 

pub struct SliceWeigher(/* private fields */);

What a slice of a measure weighs, given its quarter length, the meter’s accent where it starts, whether it is the last sounding slice of the measure and whether it is consonant: music21’s weightAlgorithm.

use music21::analysis::reduce_chords::{ReductionOptions, SliceWeigher};

let mut options = ReductionOptions::default();
options.weight_algorithm = SliceWeigher::new(|quarter_length, _, _, _| quarter_length);
assert_eq!(options.weight_algorithm.weigh(2.0, 0.5, false, true), 2.0);

Implementations

impl SliceWeigher

pub fn new( weigh: impl Fn(FloatType, FloatType, bool, bool) -> FloatType + Send + Sync + 'static, ) -> Self

A weigher that calls weigh with a slice’s quarter length, accent, whether it is last and whether it is consonant.

pub fn weigh( &self, quarter_length: FloatType, accent: FloatType, is_last: bool, is_consonant: bool, ) -> FloatType

What a slice weighs.

Trait Implementations

impl Clone for SliceWeigher

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SliceWeigher

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

Formats the value using the given formatter.

impl Default for SliceWeigher

fn default() -> Self

Returns the “default value” for a type.