Struct InverseStencilChain 

pub struct InverseStencilChain { /* private fields */ }

Per-level inverse maps for a multi-level refinement.

level_stencils[k] maps level-k vertices to level-(k+1) vertices, so the inverse of level k maps a changed set in level-k space to the affected set in level-(k+1) space. affected_outputs threads a base-cage change set forward through every level to the final-level outputs it touches – equivalent to inverting the composed table, but without paying the composition cost.

The chain is topology-only: build it once when the stencils are built and reuse it across every position edit.

Implementations

impl InverseStencilChain

pub fn level_count(&self) -> usize

Number of refinement levels in the chain.

pub fn affected_outputs(&self, changed_base_inputs: &[u32]) -> Vec<u32>

Final-level output rows affected by changing the given base-level input (control) points, sorted ascending with duplicates removed.

With no levels the chain is the identity: the affected outputs are the changed inputs themselves.

pub fn affected_outputs_into( &self, changed_base_inputs: &[u32], scratch: &mut AffectedScratch, out: &mut Vec<u32>, )

Like affected_outputs but writes into out (cleared first) and reuses scratch, so a hot edit loop allocates nothing after the scratch has warmed up. Same sorted, deduped result.

Trait Implementations

impl Clone for InverseStencilChain

fn clone(&self) -> InverseStencilChain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InverseStencilChain

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

Formats the value using the given formatter.

impl<'a> From<&'a [StencilTable]> for InverseStencilChain

fn from(level_stencils: &'a [StencilTable]) -> Self

Build per-level inverse maps from a refinement’s per-level stencil tables (e.g. RefinementResult::level_stencils).