pub trait LerpIter {
// Required method
fn lerp_iter(self, other: Self, steps: usize) -> LerpIterator<Self> ⓘ
where Self: Sized;
// Provided method
fn lerp_iter_closed(
self,
other: Self,
steps: usize
) -> Skip<Chain<LerpIterator<Self>, Once<Self>>>
where Self: Copy,
LerpIterator<Self>: Iterator<Item = Self> { ... }
}
Expand description
Types which can construct a lerping iterator from one point to another over a set number of steps.
This is automatically implemented for all T: Lerp<f64> + Sized
.
Required Methods§
sourcefn lerp_iter(self, other: Self, steps: usize) -> LerpIterator<Self> ⓘwhere
Self: Sized,
fn lerp_iter(self, other: Self, steps: usize) -> LerpIterator<Self> ⓘwhere Self: Sized,
Create an iterator which lerps from self
to other
.
The iterator is half-open: it includes self
, but not other
Example
use lerp::LerpIter;
// lerp between 3 and 5, collecting two items
let items: Vec<_> = 3.0_f64.lerp_iter(5.0, 4).collect();
assert_eq!(vec![3.0, 3.5, 4.0, 4.5], items);
Provided Methods§
sourcefn lerp_iter_closed(
self,
other: Self,
steps: usize
) -> Skip<Chain<LerpIterator<Self>, Once<Self>>>where
Self: Copy,
LerpIterator<Self>: Iterator<Item = Self>,
fn lerp_iter_closed( self, other: Self, steps: usize ) -> Skip<Chain<LerpIterator<Self>, Once<Self>>>where Self: Copy, LerpIterator<Self>: Iterator<Item = Self>,
Create an iterator which lerps from self
to other
.
The iterator is closed: it returns both self
and other
.
Note when steps == 1
, other
is returned instead of self
.
Example
use lerp::LerpIter;
assert_eq!(vec![3.0, 5.0], 3.0_f64.lerp_iter_closed(5.0, 2).collect::<Vec<f64>>());