Class IfcSceneBuilder

constructor

• new IfcSceneBuilder(model, conwayGeometry, materials): IfcSceneBuilder

• Parameters

  • model: default
  • conwayGeometry: ConwayGeometry
  • materials: IfcMaterialCache

  Returns IfcSceneBuilder

ReadonlyconwayGeometry

Readonlymaterials

Readonlymodel

roots

currentTransform

• get currentTransform(): undefined | IfcSceneTransform

• Get the current transform for this.

  Returns undefined | IfcSceneTransform

addGeometry

• addGeometry(localID, owningElementLocalID?, isSpace?, materialOverrideLocalID?): IfcSceneGeometry

• Parameters

  • localID: number
  • OptionalowningElementLocalID: number
  • OptionalisSpace: boolean
  • OptionalmaterialOverrideLocalID: number

  Returns IfcSceneGeometry

addSceneListener

• addSceneListener(listener, options?): void

• Parameters

  • listener: SceneListener
  • Optionaloptions: SceneListenerOptions

  Returns void

addTransform

• addTransform(localID, transform, nativeTransform, isMappedItem?): IfcSceneTransform

• Add a transform node and make the current transform stack parent its parent.

  Items added will be made the top of the transform stack.

  To prevent a node being used as a parent, pop it subsequently.

  Parameters

  • localID: number
  • transform: readonly number[]
  • nativeTransform: NativeTransform4x4
  • isMappedItem: boolean = false

  Returns IfcSceneTransform

buildPackedMeshModel

• buildPackedMeshModel(): PackedMesh<default>

• Build a packed/optimised mesh model with triangle element maps.

  Returns PackedMesh<default>

  Maps materials to a geometry object and triangle element map.

clearParentStack

• clearParentStack(): void

• Returns void

getByNodeIndex

• getByNodeIndex(nodeIndex): undefined | IfcSceneNode

• Parameters

  • nodeIndex: number

  Returns undefined | IfcSceneNode

getGeometry

• getGeometry(localID): undefined | IfcSceneGeometry

• Parameters

  • localID: number

  Returns undefined | IfcSceneGeometry

getTransform

• getTransform(localID): undefined | IfcSceneTransform

• Parameters

  • localID: number

  Returns undefined | IfcSceneTransform

hasGeometry

• hasGeometry(localID): boolean

• Does this scene have a particular piece of geometry?

  Parameters

  • localID: number

    The local ID of the geometry

  Returns boolean

  True if the scene has this geometry.

isAllSpaces

• isAllSpaces(): boolean

• Are all the geometry nodes in the scene spaces

  Returns boolean

  Are all the geometry nodes in the scene spaces

popTransform

• popTransform(): void

• Returns void

pushTransform

• pushTransform(transform): void

• Parameters

  • transform: IfcSceneTransform

  Returns void

removeSceneListener

• removeSceneListener(listener): void

• Parameters

  • listener: SceneListener

  Returns void

walk

• walk(includeSpaces?): IterableIterator<[undefined | readonly number[], undefined | NativeTransform4x4, CanonicalMeshBuffer, undefined | CanonicalMaterial, undefined | default<EntityTypesIfc>]>

• Walk the current scene.

  Parameters

  • includeSpaces: boolean = false

    the canonical material and the associated step element as it walks the hierarchy.

  Returns IterableIterator<[undefined | readonly number[], undefined | NativeTransform4x4, CanonicalMeshBuffer, undefined | CanonicalMaterial, undefined | default<EntityTypesIfc>]>

  Yields

  Raw absolute matrix transform, the native absolute transform, the canonical mesh,