Trait scales::Scale

pub trait Scale<N> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone, {
    pub fn to_relative(&self, absolute: N) -> f64;
    pub fn to_absolute(&self, relative: f64) -> N;
    pub fn max(&self) -> N;
    pub fn min(&self) -> N;

    pub fn to_clamped_relative(&self, absolute: N) -> f64 { ... }
    pub fn to_clamped_absolute(&self, relative: f64) -> N { ... }
    pub fn to_relative_delta(&self, absolute_delta: N, relative_pos: f64) -> f64 { ... }
    pub fn to_absolute_delta(&self, relative_delta: f64, absolute_pos: N) -> N { ... }
}

A scale is a mapping of an arbitrary, not necessarily linear, continuous and monotonically increasing range of numbers to a relative value between 0.0 and 1.0. It's useful for converting corresponding values between different coordinate spaces, for example for processing input from or rendering to a graphical user interface. A typical example would be calculating the position of a slider knob that controls a logarithmically scaled parameter.

Required methods

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

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Provided methods

pub fn to_clamped_relative(&self, absolute: N) -> f64

pub fn to_clamped_absolute(&self, relative: f64) -> N

pub fn to_relative_delta(&self, absolute_delta: N, relative_pos: f64) -> f64

pub fn to_absolute_delta(&self, relative_delta: f64, absolute_pos: N) -> N

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Implementations on Foreign Types

impl<N, SN, '_> Scale<N> for &'_ SN where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone,
    SN: Scale<N>, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N, SN> Scale<N> for Box<SN> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone,
    SN: Scale<N>, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N, SN> Scale<N> for Rc<SN> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone,
    SN: Scale<N>, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N, SN> Scale<N> for RefCell<SN> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone,
    SN: Scale<N>, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N, SN> Scale<N> for Arc<SN> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone,
    SN: Scale<N>, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

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Implementors

impl<N> Scale<N> for BrokenScale<N> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N> Scale<N> for LinearScale<N> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N> Scale<N> for LogarithmicScale<N> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

impl<N, Min, Max> Scale<N> for DynamicLinearScale<N, Min, Max> where
    N: Sub<Output = N> + Add<Output = N> + PartialOrd + FromFloat<f64> + ToFloat<f64> + Clone,
    Min: Fn() -> N,
    Max: Fn() -> N, 

pub fn to_relative(&self, absolute: N) -> f64

pub fn to_absolute(&self, relative: f64) -> N

pub fn max(&self) -> N

pub fn min(&self) -> N

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