Trait valence_math::FloatExt
source · 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;
}
Required Methods§
sourcefn lerp(self, rhs: Self, s: Self) -> Self
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.
sourcefn inverse_lerp(a: Self, b: Self, v: Self) -> Self
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
.
sourcefn remap(
self,
in_start: Self,
in_end: Self,
out_start: Self,
out_end: Self,
) -> Self
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
.