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VertexPermutation

eqiora::meshing

Struct VertexPermutation 

pub struct VertexPermutation { /* private fields */ }
Description

A bijection of local vertex ordinals.

The permutation stores the image of each canonical ordinal. Keeping the permutation itself, rather than reducing it to a sign, is necessary for vector elements and high-order traces. Backends may intern validated permutations into compact crate::OrientationCode values.

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impl VertexPermutation

Signature links:§VertexPermutation

pub fn new(images: Vec<usize>) -> Result<VertexPermutation, Diagnostic>

Signature links:newVecusizeResultVertexPermutationDiagnostic

Construct a validated vertex permutation.

§Errors

Returns EQ0803 unless every ordinal in 0..images.len() occurs once.

pub fn identity(arity: usize) -> VertexPermutation

Signature links:identityusizeVertexPermutation

Identity permutation of the requested arity.

pub fn arity(&self) -> usize

Signature links:arityusize

Number of permuted vertices.

pub fn images(&self) -> &[usize]

Signature links:imagesusize

Images in canonical ordinal order.

pub fn is_identity(&self) -> bool

Signature links:is_identitybool

Whether this is the identity permutation.

pub fn then( &self, after: &VertexPermutation, ) -> Result<VertexPermutation, Diagnostic>

Signature links:thenVertexPermutationResultVertexPermutationDiagnostic

Compose self followed by after.

§Errors

Returns EQ0803 when the two permutations have different arity.

pub fn inverse(&self) -> VertexPermutation

Signature links:inverseVertexPermutation

Invert this permutation.

Trait Implementations§

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impl Clone for VertexPermutation

Signature links:§CloneVertexPermutation
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fn clone(&self) -> VertexPermutation

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

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

Signature links:unstableSource§clone_from
Performs copy-assignment from source. Read more
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impl Debug for VertexPermutation

Signature links:§DebugVertexPermutation
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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Signature links:§fmtFormatterResult()Error
Formats the value using the given formatter. Read more
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impl Hash for VertexPermutation

Signature links:§HashVertexPermutation
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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Signature links:§hash&mut __HHasher
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,

Signature links:Source§hash_slice&mut HHasherSized
Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for VertexPermutation

Signature links:§PartialEqVertexPermutation
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fn eq(&self, other: &VertexPermutation) -> bool

Signature links:§eqVertexPermutationbool
Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Signature links:unstableSource§ne&Rhsbool
Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for VertexPermutation

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impl StructuralPartialEq for VertexPermutation

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