Struct MaterialLayerIndex 

pub struct MaterialLayerIndex { /* private fields */ }

Map from element entity ID to its resolved LayerBuildup.

Implementations

impl MaterialLayerIndex

pub fn new() -> Self

pub fn from_content(content: &str, decoder: &mut EntityDecoder<'_>) -> Self

Scan content for IfcRelAssociatesMaterial and build the index.

One pass over the file: for each association we resolve the RelatingMaterial once and insert the result under every related object ID. Elements that associate with a non-sliceable material are still inserted (as NotSliceable) so callers can distinguish “has a material, can’t slice” from “no material association at all”.

pub fn get(&self, element_id: u32) -> Option<&LayerBuildup>

Get the resolved buildup for an element, or None if the element has no material association at all.

pub fn len(&self) -> usize

Number of elements with a recorded buildup (sliceable or not).

pub fn is_empty(&self) -> bool

pub fn sliceable_count(&self) -> usize

Count how many of the recorded buildups are actually sliceable. Useful for logging / statistics — not on the hot path.

Trait Implementations

impl Clone for MaterialLayerIndex

fn clone(&self) -> MaterialLayerIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MaterialLayerIndex

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

Formats the value using the given formatter.

impl Default for MaterialLayerIndex

fn default() -> MaterialLayerIndex

Returns the “default value” for a type.