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LinearCharacter

Struct LinearCharacter 

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pub struct LinearCharacter {
    pub elements: u32,
    pub modules: u32,
    pub stop_elements: u32,
    pub stop_modules: u32,
}
Expand description

How a linear symbology groups bars and spaces into fixed-width characters.

Every character of a linear symbology occupies a known number of modules spread over a known number of elements — bars and spaces — and the symbol finishes with a wider terminating pattern. A scanner uses this to convert pixel measurements back into modules one character at a time, instead of assuming a single module width holds across the whole symbol. That is what keeps decoding accurate when a label is printed a little off-scale or fed through a scanner at a slight skew.

This is metadata for the same reason required_quiet_zone is: it lets Scanner stay ignorant of which symbology it is reading, exactly as the renderers are.

Fields§

§elements: u32

Bars and spaces in one character.

§modules: u32

Modules in one character.

§stop_elements: u32

Bars and spaces in the terminating pattern.

§stop_modules: u32

Modules in the terminating pattern.

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impl Clone for LinearCharacter

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fn clone(&self) -> LinearCharacter

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for LinearCharacter

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impl Debug for LinearCharacter

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for LinearCharacter

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impl Hash for LinearCharacter

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for LinearCharacter

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fn eq(&self, other: &LinearCharacter) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for LinearCharacter

Auto Trait Implementations§

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<U> 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.