Class StoreNamespace

Add an IfcBeam between Start and End with a centred rectangle (Width × Height) or parameterised Profile. Local Z is the beam axis so the extrusion runs along the beam.

Add an IfcColumn to a parsed model, anchored to an existing storey. Emits the full STEP sub-graph (placement, profile, extruded solid, representation, IfcRelContainedInSpatialStructure) into the overlay so the column appears next to the existing model on export.

Position is the base centre in storey-local coordinates (metres), Width×Depth selects a centred rectangle; Profile selects the canonical parameterised section. RefDirection turns its local X axis in the storey plane, and Height is the +Z extrusion length.

Add an IfcCostItem. CostValues/CostQuantities are optional; an empty array is refused.

Add an IfcPhysicalSimpleQuantity for IfcCostItem.CostQuantities.

Add an IfcCostSchedule. Refused for IFC2X3 (different attribute layout).

Add an IfcCostValue. AppliedValue and AppliedValueRef are mutually exclusive.

Add a free-standing IfcDoor (Width × Height + thin frame depth).

Inject a new entity into the active model. Returns an EntityRef pointing at the freshly-allocated expressId.

Pass def.type as the canonical IFC EXPRESS PascalCase name (e.g. 'IfcRectangleProfileDef'). UPPERCASE STEP tokens are also accepted and silently normalized to PascalCase against the schema registry, so the returned entity.type always reflects the canonical form regardless of how the caller spelled it.

Attribute conventions (mirror EntityExtractor.extractEntity()):

• numbers → STEP integer / REAL literal
• "#42" → entity reference
• ".AREA." → enum
• null → $
• arrays → STEP list (a,b,c) (recursed)
• any other string → quoted STEP string

modelId must be one the backend answers for: the headless CLI backend takes 'default' or the file basename and throws on anything else, rather than minting a ref that bim.mutate.* would then refuse.

Add an IfcMember (generic structural member — brace, post, strut) between Start and End. Same rectangular or parameterised Profile extrusion as addBeam; choose PredefinedType to disambiguate the role.

Add an IfcPlate (thin flat element) — rectangle or polygon profile extruded by Thickness. PredefinedType defaults to NOTDEFINED; pass 'CURTAIN_PANEL' / 'SHEET' to override.

Add an IfcRoof — flat-roof slab variant. Same rectangle/polygon profile shapes as addSlab but emits an IfcRoof entity with .FLAT_ROOF. PredefinedType.

Add an IfcSlab. Position is the minimum corner; the slab extends Width along +X, Depth along +Y, and is extruded Thickness upward.

Add an IfcSpace (room/zone) — rectangle or polygon footprint extruded vertically by Height. Aggregated into the storey via IfcRelAggregates (spaces are spatial-structure children, not IfcRelContainedInSpatialStructure products).

Add an IfcStructuralAnalysisModel. Not storey-anchored (IfcGroup, no geometry).

Add an IfcStructuralCurveMember between params.Start and params.End, anchored to a storey for its ObjectPlacement. Emits an IfcTopologyRepresentation (IfcEdge between two IfcVertexPoints) as its analytical line geometry.

Add an IfcStructuralLinearAction carrying an IfcStructuralLoadLinearForce.

Add an IfcStructuralLoadGroup, or an IfcStructuralLoadCase when params.SelfWeightCoefficients is given.

Add an IfcStructuralPointAction carrying an IfcStructuralLoadSingleForce.

Add an IfcStructuralPointConnection at params.Position, optionally with an IfcBoundaryNodeCondition.

Add an IfcWall from Start to End (storey-local metres). Profile spans the full length along the wall axis, centred on Thickness, and is extruded upward by Height.

Add a free-standing IfcWindow (Width × Height + thin frame depth).

Assign itemExpressIds to scheduleExpressId's control via IfcRelAssignsToControl.

Assign objectExpressIds (products AND/OR tasks) to costItemExpressId's control.

Assign members/connections into an analysis model, or activities into a load group, via IfcRelAssignsToGroup — the relationship bim.structural.analysisModels()[i].itemGlobalIds and bim.structural.loadGroups()[i].activityGlobalIds read back.

Apply a structural action/reaction to the member or connection it acts on via IfcRelConnectsStructuralActivity.

Link a structural member to a structural connection via IfcRelConnectsStructuralMember.

Nest childExpressIds (IfcCostItem) under parentExpressId via IfcRelNests. A child already nested elsewhere is reparented: detached from its old rel (which is tombstoned if that empties it) first.

Safe-delete an IfcCostSchedule / IfcCostItem / IfcCostValue. Throws, naming referrers, if a value is still listed in another item's CostValues or another value's Components — pass { detach: true } to rewrite those lists first. Deleting an item cascades to values it alone references.

Remove an entity. Tombstones existing source entities so they're skipped on export; forgets overlay-only entities entirely. Returns false if the id is unknown to the store.

Replace an IfcCostItem's CostValues. Pass [] to clear it (written as $, never ()).

Edit a positional STEP argument on any entity by zero-based index. Use this for non-IfcRoot edits like IfcRectangleProfileDef.XDim (index 3) where the attribute has no symbolic name.