Trait valence::math::FloatExt

pub trait FloatExt {
    // Required methods
    fn lerp(self, rhs: Self, s: Self) -> Self;
    fn inverse_lerp(a: Self, b: Self, v: Self) -> Self;
    fn remap(
        self,
        in_start: Self,
        in_end: Self,
        out_start: Self,
        out_end: Self,
    ) -> Self;
}

A trait for extending f32 and f64 with extra methods.

Required Methods

fn lerp(self, rhs: Self, s: Self) -> Self

Performs a linear interpolation between self and rhs based on the value s.

When s is 0, the result will be self. When s is 1, the result will be rhs. When s is outside of the range [0, 1], the result is linearly extrapolated.

fn inverse_lerp(a: Self, b: Self, v: Self) -> Self

Returns v normalized to the range [a, b].

When v is equal to a the result will be 0. When v is equal to b will be 1.

When v is outside of the range [a, b], the result is linearly extrapolated.

a and b must not be equal, otherwise the result will be either infinite or NAN.

fn remap( self, in_start: Self, in_end: Self, out_start: Self, out_end: Self, ) -> Self

Remap self from the input range to the output range.

When self is equal to in_start this returns out_start. When self is equal to in_end this returns out_end.

When self is outside of the range [in_start, in_end], the result is linearly extrapolated.

in_start and in_end must not be equal, otherwise the result will be either infinite or NAN.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl FloatExt for f32

fn lerp(self, rhs: f32, t: f32) -> f32

fn inverse_lerp(a: f32, b: f32, v: f32) -> f32

fn remap(self, in_start: f32, in_end: f32, out_start: f32, out_end: f32) -> f32

impl FloatExt for f64

fn lerp(self, rhs: f64, t: f64) -> f64

fn inverse_lerp(a: f64, b: f64, v: f64) -> f64

fn remap(self, in_start: f64, in_end: f64, out_start: f64, out_end: f64) -> f64

Implementors