Struct PlacementResolver 

pub struct PlacementResolver { /* private fields */ }

Resolves placement chains to world transforms, with memoization.

Why a resolver rather than a free function

Placement chains share their upper links: every element in a storey walks the same storey-building-site tail. Caching per placement turns repeated work into a lookup, which matters because this runs once per element in the file.

Implementations

impl PlacementResolver

pub fn new() -> Self

A resolver with an empty cache.

pub fn cached(&self) -> usize

How many placements are memoized.

pub fn world_transform( &mut self, model: &Model, placement: EntityId, ) -> GeometryResult<Transform>

Resolve a placement to its world transform.

Walks PlacementRelTo to the root, then composes downward. Detects cycles rather than overflowing the stack, and reports the entity where the cycle closes so the file can be repaired.

Trait Implementations

impl Debug for PlacementResolver

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

Formats the value using the given formatter.

impl Default for PlacementResolver

fn default() -> Self

Returns the “default value” for a type.