Struct PixelCache

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pub struct PixelCache {
    pub boxes: Vec<Rectangle>,
}

Expand description

A high-performance spatial cache for PixelSet data, organized as a collection of Rectangle containers.

§Overview

PixelCache is designed to store pixels in spatially contiguous boxes (Rectangle), making it easily to compactly store continuous sets of pixels.

A PixelCache can be very quickly iterated over, and converted to a PixelSet, but cannot be directly operated on, and generating one may take longer.

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§boxes: Vec<Rectangle>

Implementations§

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impl PixelCache

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pub fn new() -> Self

Creates a new empty PixelCache.

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pub fn group(&self) -> PixelSet

Combines all cached Rectangle containers into a single, sorted PixelSet.

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pub fn len(&self) -> usize

Returns the total number of pixels contained across all cached boxes.

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pub fn is_empty(&self) -> bool

Returns true if the cache contains no pixels.

Trait Implementations§

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impl Clone for PixelCache

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fn clone(&self) -> PixelCache

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl UnwindSafe for PixelCache

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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