Class SpatialHierarchyBuilder

Index

Constructors

Methods

build buildFromCache

Constructors

constructor

new SpatialHierarchyBuilder(): SpatialHierarchyBuilder

Returns SpatialHierarchyBuilder

Methods

build

build(
    entities: EntityTable,
    relationships: RelationshipGraph,
    _strings: StringTable,
    source: Uint8Array<ArrayBufferLike> | IfcSourceBytes,
    entityIndex: { byId: { get(expressId: number): EntityRef | undefined } },
    lengthUnitScale?: number,
): SpatialHierarchy
Fresh-parse build. Extracts storey elevations from the source buffer. Throws if no IfcProject is present.
Parameters
- entities: EntityTable
- relationships: RelationshipGraph
- _strings: StringTable
- source: Uint8Array<ArrayBufferLike> | IfcSourceBytes
- entityIndex: { byId: { get(expressId: number): EntityRef | undefined } }
- OptionallengthUnitScale: number
  Scale to convert IFC length values to meters (e.g. 0.001 for millimeters).
Returns SpatialHierarchy

buildFromCache

buildFromCache(
entities: EntityTable,
relationships: RelationshipGraph,
): SpatialHierarchy | undefined
Cache-restore build. No source buffer, so storey elevations stay empty (getStoreyByElevation returns null). Returns undefined if no IfcProject.
Parameters
- entities: EntityTable
- relationships: RelationshipGraph
Returns SpatialHierarchy | undefined