### Install web-ifc NPM Package

Source: https://thatopen.github.io/engine_web-ifc/docs/index

Instructions to install the web-ifc library using the Node Package Manager (npm). This command adds the web-ifc package to your project's dependencies.

```Bash
npm install web-ifc
```

--------------------------------

### API Navigation: Page Constructors and Properties

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcMechanicalConcreteMaterialProperties

Lists the constructors and properties available on the current documentation page, serving as a quick navigation guide for the API elements documented within this section.

```APIDOC
Constructors
constructor

Properties
AdmixturesDescription
CompressiveStrength
DynamicViscosity
expressID
Material
MaxAggregateSize
PoissonRatio
ProtectivePoreRatio
ShearModulus
ThermalExpansionCoefficient
type
WaterImpermeability
Workability
YoungModulus
```

--------------------------------

### Get Express ID from Global ID (GUID)

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/web-ifc.IfcAPI

Looks up and returns an entity's express ID based on its GlobalID (GUID) within a specified model. The function can return undefined, a string, or a number for the express ID.

```APIDOC
GetExpressIdFromGuid(modelID: number, guid: string): undefined | string | number
  Parameters:
    modelID: number
      Model handle retrieved by OpenModel
    guid: string
      GobalID to be looked up
  Returns: undefined | string | number
    expressID numerical value
```

--------------------------------

### Web-IFC Entity Constructor

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcEquipmentElement

Details the constructor available for instantiating a Web-IFC entity, outlining its basic initialization. The specific parameters are not detailed in this index.

```APIDOC
constructor()
```

--------------------------------

### IfcAPI Constructor Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcOpenShell

Lists the available constructors for the IfcAPI class. Detailed documentation for the constructor is available via the provided link in the original source.

```APIDOC
IfcAPI:
  constructor()
```

--------------------------------

### IFC Schema: Start Property Definition

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcWorkTime

Specifies the Start property, which can be null or an IfcDate object from IFC4, indicating a date value, as defined in ifc-schema.ts.

```APIDOC
Start: null | [IFC4](../modules/ifc-schema.IFC4.html).[IfcDate](ifc-schema.IFC4.IfcDate.html)
```

--------------------------------

### Web-IFC API Constructors Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcComplexProperty

This section lists the primary constructors available in the Web-IFC API, providing entry points for creating instances or initializing core components.

```APIDOC
Constructors:
  - constructor
```

--------------------------------

### Web-IFC API Constructors Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcAudioVisualApplianceTypeEnum

This section lists the primary constructors available in the Web-IFC API, providing a quick reference and links to their specific documentation.

```APIDOC
Constructors:
  - constructor
```

--------------------------------

### GetNextExpressID

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/web-ifc.IfcAPI

Gets the next unused expressID.

```APIDOC
GetNextExpressID(modelID: number, expressID: number): number
  Parameters:
    modelID: number
      Description: Model handle retrieved by OpenModel
    expressID: number
      Description: Starting expressID value
  Returns: number
    Description: The next unused expressID starting from the value provided
```

--------------------------------

### IfcEngine Class Constructor

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcEngine

Documents the constructor for the IfcEngine class, detailing all required and optional parameters for its instantiation. It inherits from IfcEnergyConversionDevice and returns an IfcEngine instance.

```APIDOC
new IfcEngine(
  GlobalId: IFC4.IfcGloballyUniqueId,
  OwnerHistory: null | IFC4.IfcOwnerHistory | Handle<IFC4.IfcOwnerHistory>,
  Name: null | IFC4.IfcLabel,
  Description: null | IFC4.IfcText,
  ObjectType: null | IFC4.IfcLabel,
  ObjectPlacement: null | IFC4.IfcObjectPlacement | Handle<IFC4.IfcObjectPlacement>,
  Representation: null | IFC4.IfcProductRepresentation | Handle<IFC4.IfcProductRepresentation>,
  Tag: null | IFC4.IfcIdentifier,
  PredefinedType: null | IFC4.IfcEngineTypeEnum
): IFC4.IfcEngine

Parameters:
  GlobalId: IFC4.IfcGloballyUniqueId
  OwnerHistory: null | IFC4.IfcOwnerHistory | Handle<IFC4.IfcOwnerHistory>
  Name: null | IFC4.IfcLabel
  Description: null | IFC4.IfcText
  ObjectType: null | IFC4.IfcLabel
  ObjectPlacement: null | IFC4.IfcObjectPlacement | Handle<IFC4.IfcObjectPlacement>
  Representation: null | IFC4.IfcProductRepresentation | Handle<IFC4.IfcProductRepresentation>
  Tag: null | IFC4.IfcIdentifier
  PredefinedType: null | IFC4.IfcEngineTypeEnum

Returns: IFC4.IfcEngine
```

--------------------------------

### GetNameFromTypeCode

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/web-ifc.IfcAPI

Gets the name from a type code.

```APIDOC
GetNameFromTypeCode(type: number): string
  Parameters:
    type: number
      Description: Code
  Returns: string
    Description: Name
```

--------------------------------

### IfcAPI Class Constructors and Properties

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcWindowStyle

Provides an overview of the available constructors and properties for an IfcAPI class. This section serves as a quick reference for navigating the class's public interface.

```APIDOC
Constructors
constructor

Properties
ApplicableOccurrence
ConstructionType
Decomposes
Description
expressID
GlobalId
HasAssignments
HasAssociations
HasContext
HasPropertySets
IsDecomposedBy
IsNestedBy
Name
Nests
OperationType
OwnerHistory
ParameterTakesPrecedence
ReferencedBy
RepresentationMaps
Sizeable
Tag
type
Types
```

--------------------------------

### GetTypeCodeFromName

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/web-ifc.IfcAPI

Gets the type code from a name code.

```APIDOC
GetTypeCodeFromName(typeName: string): number
  Parameters:
    typeName: string
  Returns: number
    Description: type code
```

--------------------------------

### IfcDoorType Constructor Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcDoorType

Provides an overview of the constructor for the IfcDoorType class. The provided documentation does not detail specific parameters or return types for the constructor.

```APIDOC
Constructors:
  constructor
```

--------------------------------

### StartTime Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcTimeSeries

Specifies the start time of an event or process, typed as IfcDateTimeSelect.

```APIDOC
StartTime: IfcDateTimeSelect
```

--------------------------------

### Get ForProfileEndSet Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMaterialProfileSetUsageTapering

Retrieves the ForProfileEndSet property, which can be an IfcMaterialProfileSet or a Handle to an IfcMaterialProfileSet.

```APIDOC
ForProfileEndSet:
  | IFC4X3.IfcMaterialProfileSet
  | Handle<IFC4X3.IfcMaterialProfileSet>
```

--------------------------------

### Web-IFC API Constructors and Properties Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcInterceptor

This section outlines the main constructors and properties available within the Web-IFC API, providing a structured list for quick reference.

```APIDOC
Web-IFC API:
  Constructors:
    - constructor
  Properties:
    - ConnectedFrom
    - ConnectedTo
    - ContainedInStructure
    - Declares
    - Decomposes
    - Description
    - expressID
    - FillsVoids
    - GlobalId
    - HasAssignments
    - HasAssociations
    - HasContext
    - HasControlElements
    - HasCoverings
    - HasOpenings
    - HasPorts
    - HasProjections
    - HasSurfaceFeatures
    - InterferesElements
    - IsConnectionRealization
    - IsDeclaredBy
    - IsDecomposedBy
    - IsDefinedBy
    - IsInterferedByElements
    - IsNestedBy
    - IsTypedBy
    - Name
    - Nests
    - ObjectPlacement
    - ObjectType
    - OwnerHistory
    - PositionedRelativeTo
    - PredefinedType
    - ProvidesBoundaries
    - ReferencedBy
    - ReferencedInStructures
    - Representation
    - Tag
    - type
```

--------------------------------

### IfcEquipmentElement Constructor API

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcEquipmentElement

This snippet documents the constructor for the IfcEquipmentElement class. It details all required and optional parameters for creating a new instance of an IfcEquipmentElement, including its global ID, owner history, name, description, object type, placement, representation, and tag. The constructor returns a new IfcEquipmentElement object.

```APIDOC
new IfcEquipmentElement(
  GlobalId: IfcGloballyUniqueId,
  OwnerHistory: IfcOwnerHistory | Handle<IfcOwnerHistory>,
  Name: null | IfcLabel,
  Description: null | IfcText,
  ObjectType: null | IfcLabel,
  ObjectPlacement: null | IfcObjectPlacement | Handle<IfcObjectPlacement>,
  Representation: null | IfcProductRepresentation | Handle<IfcProductRepresentation>,
  Tag: null | IfcIdentifier
)

Parameters:
  GlobalId: IfcGloballyUniqueId - A globally unique identifier for the element.
  OwnerHistory: IfcOwnerHistory | Handle<IfcOwnerHistory> - The history of the object's ownership.
  Name: null | IfcLabel - The name of the object.
  Description: null | IfcText - A description of the object.
  ObjectType: null | IfcLabel - The type of the object.
  ObjectPlacement: null | IfcObjectPlacement | Handle<IfcObjectPlacement> - The placement of the object in space.
  Representation: null | IfcProductRepresentation | Handle<IfcProductRepresentation> - The representation of the product.
  Tag: null | IfcIdentifier - A tag for the object.

Returns: IfcEquipmentElement
```

--------------------------------

### Property: StartTime

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcIrregularTimeSeries

Represents the start time of the time series. It is inherited from IfcTimeSeries and is of type IfcDateTime.

```APIDOC
StartTime: IFC4.IfcDateTime
```

--------------------------------

### Property: StartParam

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcFixedReferenceSweptAreaSolid

Defines the start parameter for an entity. It can be null or an IfcParameterValue. This property is defined in ifc-schema.ts.

```APIDOC
StartParam: null | IFC4.IfcParameterValue
```

--------------------------------

### GlobalId Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMarineFacility

Represents the globally unique identifier (GUID) for the entity. This property is inherited from IfcFacility.

```APIDOC
GlobalId: IFC4X3.IfcGloballyUniqueId
```

--------------------------------

### Get IFC Material Name

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcMaterial

Retrieves the name of the IFC material, represented as an IfcLabel.

```APIDOC
Name: IFC4.IfcLabel
```

--------------------------------

### IfcMooringDevice Class API Reference

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMooringDevice

This section provides the API documentation for the IfcMooringDevice class, detailing its constructor parameters and inherited properties for connecting elements within the IFC4X3 schema.

```APIDOC
Class: IfcMooringDevice
  Constructor:
    Parameters:
      GlobalId: IFC4X3.IfcGloballyUniqueId
      OwnerHistory: IFC4X3.IfcOwnerHistory | Handle<IFC4X3.IfcOwnerHistory> | null
      Name: IFC4X3.IfcLabel | null
      Description: IFC4X3.IfcText | null
      ObjectType: IFC4X3.IfcLabel | null
      ObjectPlacement: IFC4X3.IfcObjectPlacement | Handle<IFC4X3.IfcObjectPlacement> | null
      Representation: IFC4X3.IfcProductRepresentation | Handle<IFC4X3.IfcProductRepresentation> | null
      Tag: IFC4X3.IfcIdentifier | null
      PredefinedType: IfcMooringDeviceTypeEnum | null
    Returns: IfcMooringDevice
```

```APIDOC
Property: ConnectedFrom
  Type: (IFC4X3.IfcRelConnectsElements | Handle<IFC4X3.IfcRelConnectsElements>)[] | null
  Inherited From: IfcBuiltElement
```

```APIDOC
Property: ConnectedTo
  Type: (IFC4X3.IfcRelConnectsElements | Handle<IFC4X3.IfcRelConnectsElements>)[] | null
  Inherited From: IfcBuiltElement
```

--------------------------------

### IfcCooledBeam Constructor API Documentation

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcCooledBeam

Documents the constructor for the IfcCooledBeam class, detailing all required and optional parameters for its instantiation within the IFC4X3 schema. It returns an instance of IfcCooledBeam.

```APIDOC
new IfcCooledBeam(
  GlobalId: IFC4X3.IfcGloballyUniqueId,
  OwnerHistory:
    null
    | IFC4X3.IfcOwnerHistory
    | Handle<IFC4X3.IfcOwnerHistory>,
  Name: null | IFC4X3.IfcLabel,
  Description: null | IFC4X3.IfcText,
  ObjectType: null | IFC4X3.IfcLabel,
  ObjectPlacement:
    null
    | IFC4X3.IfcObjectPlacement
    | Handle<IFC4X3.IfcObjectPlacement>,
  Representation:
    null
    | IFC4X3.IfcProductRepresentation
    | Handle<IFC4X3.IfcProductRepresentation>,
  Tag: null | IFC4X3.IfcIdentifier,
  PredefinedType: null | IFC4X3.IfcCooledBeamTypeEnum
): IFC4X3.IfcCooledBeam

Parameters:
- GlobalId: IFC4X3.IfcGloballyUniqueId
- OwnerHistory: null | IFC4X3.IfcOwnerHistory | Handle<IFC4X3.IfcOwnerHistory>
- Name: null | IFC4X3.IfcLabel
- Description: null | IFC4X3.IfcText
- ObjectType: null | IFC4X3.IfcLabel
- ObjectPlacement: null | IFC4X3.IfcObjectPlacement | Handle<IFC4X3.IfcObjectPlacement>
- Representation: null | IFC4X3.IfcProductRepresentation | Handle<IFC4X3.IfcProductRepresentation>
- Tag: null | IFC4X3.IfcIdentifier
- PredefinedType: null | IFC4X3.IfcCooledBeamTypeEnum

Returns: IFC4X3.IfcCooledBeam
```

--------------------------------

### StartPoint Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcAlignmentHorizontalSegment

This property specifies the starting point of the segment. It can be an IFC4X3.IfcCartesianPoint directly or a Handle referencing an IFC4X3.IfcCartesianPoint.

```APIDOC
StartPoint: IFC4X3.IfcCartesianPoint | Handle<IFC4X3.IfcCartesianPoint>
```

--------------------------------

### StartDirection Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcAlignmentHorizontalSegment

This property defines the starting direction of the segment. Its value is an IFC4X3.IfcPlaneAngleMeasure, representing an angle in a plane.

```APIDOC
StartDirection: IFC4X3.IfcPlaneAngleMeasure
```

--------------------------------

### Web-IFC Main API Class (IfcAPI)

Source: https://thatopen.github.io/engine_web-ifc/docs/variables/ifc-schema.IFCTUBEBUNDLETYPE

Documentation for the `IfcAPI` class, which serves as the main entry point for interacting with the web-ifc library, providing core functionalities for loading, parsing, and managing IFC models.

```APIDOC
Class: IfcAPI
  Module: web_ifc
  Description: Main entry point for interacting with the web-ifc library, providing core functionalities for loading, parsing, and managing IFC models.
```

--------------------------------

### Construct IfcAudioVisualAppliance Instance

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcAudioVisualAppliance

Initializes a new instance of the `IfcAudioVisualAppliance` class. This constructor requires various IFC-specific parameters such as a globally unique ID, owner history, name, description, object type, object placement, representation, tag, and a predefined type. It returns a new `IfcAudioVisualAppliance` object.

```APIDOC
IfcAudioVisualAppliance Constructor:
  new IfcAudioVisualAppliance(
    GlobalId: IFC4X3.IfcGloballyUniqueId,
    OwnerHistory: null | IFC4X3.IfcOwnerHistory | Handle<IFC4X3.IfcOwnerHistory>,
    Name: null | IFC4X3.IfcLabel,
    Description: null | IFC4X3.IfcText,
    ObjectType: null | IFC4X3.IfcLabel,
    ObjectPlacement: null | IFC4X3.IfcObjectPlacement | Handle<IFC4X3.IfcObjectPlacement>,
    Representation: null | IFC4X3.IfcProductRepresentation | Handle<IFC4X3.IfcProductRepresentation>,
    Tag: null | IFC4X3.IfcIdentifier,
    PredefinedType: null | IFC4X3.IfcAudioVisualApplianceTypeEnum
  ): IFC4X3.IfcAudioVisualAppliance
```

--------------------------------

### LateStart Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcScheduleTimeControl

Specifies the late start date/time for an entity. This property can be null or an IfcDateTimeSelect type.

```APIDOC
LateStart: null | IfcDateTimeSelect
```

--------------------------------

### Get Name Property for IfcStructuralReaction

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcStructuralCurveReaction

Retrieves the 'Name' property, which is an IfcLabel. This property is inherited from IfcStructuralReaction.

```APIDOC
Name: null | IFC4X3.IfcLabel
Inherited from IfcStructuralReaction.Name
```

--------------------------------

### IfcBearing Constructor Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcBearing

Lists the available constructors for the `IfcBearing` class. This section provides a quick reference to how instances of `IfcBearing` can be initialized.

```APIDOC
Constructors:
  - constructor
```

--------------------------------

### IfcSpace Class Constructor Documentation

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcSpace

Documents the constructor for the IfcSpace class, detailing all required and optional parameters for creating an instance of an IFC Space entity. It includes parameter types and the return type of the constructor.

```APIDOC
new IfcSpace(
    GlobalId: IFC2X3.IfcGloballyUniqueId,
    OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>,
    Name: null | IFC2X3.IfcLabel,
    Description: null | IFC2X3.IfcText,
    ObjectType: null | IFC2X3.IfcLabel,
    ObjectPlacement:
        | null
        | IFC2X3.IfcObjectPlacement
        | Handle<IFC2X3.IfcObjectPlacement>,
    Representation:
        | null
        | IFC2X3.IfcProductRepresentation
        | Handle<IFC2X3.IfcProductRepresentation>,
    LongName: null | IFC2X3.IfcLabel,
    CompositionType: IFC2X3.IfcElementCompositionEnum,
    InteriorOrExteriorSpace: IFC2X3.IfcInternalOrExternalEnum,
    ElevationWithFlooring: null | IFC2X3.IfcLengthMeasure,
): IFC2X3.IfcSpace

Parameters:
  GlobalId: IFC2X3.IfcGloballyUniqueId
  OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>
  Name: null | IFC2X3.IfcLabel
  Description: null | IFC2X3.IfcText
  ObjectType: null | IFC2X3.IfcLabel
  ObjectPlacement: null | IFC2X3.IfcObjectPlacement | Handle<IFC2X3.IfcObjectPlacement>
  Representation: null | IFC2X3.IfcProductRepresentation | Handle<IFC2X3.IfcProductRepresentation>
  LongName: null | IFC2X3.IfcLabel
  CompositionType: IFC2X3.IfcElementCompositionEnum
  InteriorOrExteriorSpace: IFC2X3.IfcInternalOrExternalEnum
  ElevationWithFlooring: null | IFC2X3.IfcLengthMeasure

Returns: IFC2X3.IfcSpace
```

--------------------------------

### Get ReferenceExtent Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMaterialProfileSetUsageTapering

Retrieves the ReferenceExtent property, which can be null or an IfcPositiveLengthMeasure. This property is inherited from IfcMaterialProfileSetUsage.

```APIDOC
ReferenceExtent: null | IFC4X3.IfcPositiveLengthMeasure
Inherited from IfcMaterialProfileSetUsage.ReferenceExtent
```

--------------------------------

### Get CardinalPoint Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMaterialProfileSetUsageTapering

Retrieves the CardinalPoint property, which can be null or an IfcCardinalPointReference. This property is inherited from IfcMaterialProfileSetUsage.

```APIDOC
CardinalPoint: null | IFC4X3.IfcCardinalPointReference
Inherited from IfcMaterialProfileSetUsage.CardinalPoint
```

--------------------------------

### IfcWindow Class Constructor and Properties API

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcWindow

This snippet provides the API documentation for the IfcWindow class, including its constructor signature with all parameters and their types, as well as the definition of the 'ConnectedFrom' property.

```APIDOC
IfcWindow constructor:
  new IfcWindow(
    GlobalId: IFC2X3.IfcGloballyUniqueId,
    OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>,
    Name: null | IFC2X3.IfcLabel,
    Description: null | IFC2X3.IfcText,
    ObjectType: null | IFC2X3.IfcLabel,
    ObjectPlacement: null | IFC2X3.IfcObjectPlacement | Handle<IFC2X3.IfcObjectPlacement>,
    Representation: null | IFC2X3.IfcProductRepresentation | Handle<IFC2X3.IfcProductRepresentation>,
    Tag: null | IFC2X3.IfcIdentifier,
    OverallHeight: null | IFC2X3.IfcPositiveLengthMeasure,
    OverallWidth: null | IFC2X3.IfcPositiveLengthMeasure
  ): IFC2X3.IfcWindow
```

```APIDOC
IfcWindow.ConnectedFrom property:
  Type: null | (IFC2X3.IfcRelConnectsElements | Handle<IFC2X3.IfcRelConnectsElements>)[]
  Inherited from IfcBuildingElement.ConnectedFrom
```

--------------------------------

### Web-IFC API Reference Index

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcBeam

Lists the main constructors and properties available in the Web-IFC API, serving as a navigation aid to their detailed documentation.

```APIDOC
Web-IFC API Elements:

Constructors:
  - constructor()

Properties:
  - ConnectedFrom
  - ConnectedTo
  - ContainedInStructure
  - Decomposes
  - Description
  - expressID
  - FillsVoids
  - GlobalId
  - HasAssignments
  - HasAssociations
  - HasCoverings
  - HasOpenings
  - HasPorts
  - HasProjections
  - HasStructuralMember
  - IsConnectionRealization
  - IsDecomposedBy
  - IsDefinedBy
  - Name
  - ObjectPlacement
  - ObjectType
  - OwnerHistory
  - ProvidesBoundaries
  - ReferencedBy
  - ReferencedInStructures
  - Representation
  - Tag
  - type
```

--------------------------------

### API Property: IfcControl.StartTime

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcWorkControl

Indicates the start time of an IFC object. Its type is IfcDateTime. This property is defined in ifc-schema.ts.

```APIDOC
StartTime:
  Type: IFC4X3.IfcDateTime
  Defined In: ifc-schema.ts:28253
```

--------------------------------

### IfcEvaporatorType Constructor API Documentation

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcEvaporatorType

Documents the constructor for the IfcEvaporatorType class, detailing all required and optional parameters for its instantiation. It outlines the types for each parameter, including references to IFC2X3 schema definitions and Handle types.

```APIDOC
constructor(
  GlobalId: IFC2X3.IfcGloballyUniqueId,
  OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>,
  Name: null | IFC2X3.IfcLabel,
  Description: null | IFC2X3.IfcText,
  ApplicableOccurrence: null | IFC2X3.IfcLabel,
  HasPropertySets: null | (IFC2X3.IfcPropertySetDefinition | Handle<IFC2X3.IfcPropertySetDefinition>)[],
  RepresentationMaps: null | (IFC2X3.IfcRepresentationMap | Handle<IFC2X3.IfcRepresentationMap>)[],
  Tag: null | IFC2X3.IfcLabel,
  ElementType: null | IFC2X3.IfcLabel,
  PredefinedType: IFC2X3.IfcEvaporatorTypeEnum
): IFC2X3.IfcEvaporatorType
```

--------------------------------

### IFC Schema Property: StartParam

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcSweptDiskSolid

Defines the start parameter, which can be null or an IfcParameterValue. This property is defined in ifc-schema.ts.

```APIDOC
StartParam: null | IfcParameterValue
```

--------------------------------

### StartTag Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcAlignmentHorizontalSegment

This property represents the start tag of a segment. It can be null or an instance of IFC4X3.IfcLabel. This property is inherited from IfcAlignmentParameterSegment.

```APIDOC
StartTag: null | IFC4X3.IfcLabel
```

--------------------------------

### IfcBoxedHalfSpace Constructor

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcBoxedHalfSpace

Initializes a new instance of the IfcBoxedHalfSpace class. Requires a base surface, an agreement flag, and an enclosure bounding box.

```APIDOC
constructor(
  BaseSurface: IFC4X3.IfcSurface | Handle<IFC4X3.IfcSurface>,
  AgreementFlag: IFC4X3.IfcBoolean,
  Enclosure: IFC4X3.IfcBoundingBox | Handle<IFC4X3.IfcBoundingBox>
): IFC4X3.IfcBoxedHalfSpace
  Overrides: IfcHalfSpaceSolid.constructor
  Defined in: ifc-schema.ts:25536
```

--------------------------------

### StartRadiusOfCurvature Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcAlignmentHorizontalSegment

This property defines the radius of curvature at the start of the segment. Its type is IFC4X3.IfcLengthMeasure, indicating a length value.

```APIDOC
StartRadiusOfCurvature: IFC4X3.IfcLengthMeasure
```

--------------------------------

### Web-IFC API Constructors and Properties Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcApplication

Lists the main constructors and properties exposed by the Web-IFC API, providing a quick reference to available members.

```APIDOC
Constructors:
  - constructor

Properties:
  - ApplicationDeveloper
  - ApplicationFullName
  - ApplicationIdentifier
  - expressID
  - type
  - Version
```

--------------------------------

### Reference to Main Web-IFC API Class

Source: https://thatopen.github.io/engine_web-ifc/docs/variables/ifc-schema.IFCPIPEFITTING

Provides a direct link to the documentation for the `IfcAPI` class, which serves as the main entry point for interacting with the Web-IFC API in the That Open Engine.

```APIDOC
Web-IFC API:
  Class: IfcAPI
  Documentation Link: classes/web_ifc.IfcAPI.html
```

--------------------------------

### Get ForProfileSet Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMaterialProfileSetUsageTapering

Retrieves the ForProfileSet property, which can be an IfcMaterialProfileSet or a Handle to an IfcMaterialProfileSet. This property is inherited from IfcMaterialProfileSetUsage.

```APIDOC
ForProfileSet:
  | IFC4X3.IfcMaterialProfileSet
  | Handle<IFC4X3.IfcMaterialProfileSet>
Inherited from IfcMaterialProfileSetUsage.ForProfileSet
```

--------------------------------

### API Property: StartParam

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcSweptDiskSolidPolygonal

Indicates the starting parameter value for an object. This property is inherited from IfcSweptDiskSolid and can be null or an IfcParameterValue.

```APIDOC
StartParam: null | IFC4.IfcParameterValue
Inherited from IfcSweptDiskSolid.StartParam
```

--------------------------------

### Web-IFC API Constructors

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcReinforcingBar

Lists the available constructors for Web-IFC objects.

```APIDOC
constructor
```

--------------------------------

### StartParam Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcDirectrixDerivedReferenceSweptAreaSolid

This property defines the start parameter for a swept area solid. It can be null or an IfcCurveMeasureSelect type. It is inherited from IfcFixedReferenceSweptAreaSolid.

```APIDOC
StartParam: null | IfcCurveMeasureSelect
```

--------------------------------

### IfcPlate Constructor

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcPlate

Documents the constructor for the IfcPlate class. While specific parameters are not detailed in the provided text, its availability for object instantiation is noted.

```APIDOC
Constructors
- constructor
```

--------------------------------

### API Documentation for SegmentStart Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcCurveSegment

Defines the SegmentStart property, which specifies a measure for the start of a curve segment. It is of type IfcCurveMeasureSelect.

```APIDOC
SegmentStart: IfcCurveMeasureSelect
```

--------------------------------

### Web-IFC API Constructor Reference

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcShadingDevice

Lists the available constructors for the Web-IFC API.

```APIDOC
Constructors:
  - constructor
```

--------------------------------

### PatternStart Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcFillAreaStyleHatching

Indicates the starting point of a pattern. It can be null, an IfcCartesianPoint, or a Handle to an IfcCartesianPoint. This property is defined in ifc-schema.ts.

```APIDOC
PatternStart: null | IFC2X3.IfcCartesianPoint | Handle<IFC2X3.IfcCartesianPoint>
```

--------------------------------

### Web-IFC API Constructors and Properties Index

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcEvaporativeCoolerTypeEnum

This section outlines the primary constructors and a comprehensive list of properties available within the Web-IFC API. It acts as a quick reference for the core components of the API.

```APIDOC
Constructors:
  - constructor
Properties:
  - DIRECTEVAPORATIVEAIRWASHER
  - DIRECTEVAPORATIVEPACKAGEDROTARYAIRCOOLER
  - DIRECTEVAPORATIVERANDOMMEDIAAIRCOOLER
  - DIRECTEVAPORATIVERIGIDMEDIAAIRCOOLER
  - DIRECTEVAPORATIVESLINGERSPACKAGEDAIRCOOLER
  - INDIRECTDIRECTCOMBINATION
  - INDIRECTEVAPORATIVECOOLINGTOWERORCOILCOOLER
  - INDIRECTEVAPORATIVEPACKAGEAIRCOOLER
  - INDIRECTEVAPORATIVEWETCOIL
  - NOTDEFINED
  - USERDEFINED
```

--------------------------------

### IfcWorkPlan Constructor API Documentation

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcWorkPlan

Documents the constructor for the IfcWorkPlan class, detailing all required and optional parameters for instantiation and its return type. This constructor allows for the creation of a new IfcWorkPlan instance with comprehensive metadata.

```APIDOC
IfcWorkPlan:
  constructor(
    GlobalId: IFC2X3.IfcGloballyUniqueId,
    OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>,
    Name: null | IFC2X3.IfcLabel,
    Description: null | IFC2X3.IfcText,
    ObjectType: null | IFC2X3.IfcLabel,
    Identifier: IFC2X3.IfcIdentifier,
    CreationDate: IfcDateTimeSelect,
    Creators: null | (IFC2X3.IfcPerson | Handle<IFC2X3.IfcPerson>)[],
    Purpose: null | IFC2X3.IfcLabel,
    Duration: null | IFC2X3.IfcTimeMeasure,
    TotalFloat: null | IFC2X3.IfcTimeMeasure,
    StartTime: IfcDateTimeSelect,
    FinishTime: null | IfcDateTimeSelect,
    WorkControlType: null | IfcWorkControlTypeEnum,
    UserDefinedControlType: null | IFC2X3.IfcLabel
  )
  Returns: IFC2X3.IfcWorkPlan
```

--------------------------------

### Get expressID Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcMaterialProfileSetUsageTapering

Retrieves the expressID property, a number with a default value of -1. This property is inherited from IfcMaterialProfileSetUsage.

```APIDOC
expressID: number = -1
Inherited from IfcMaterialProfileSetUsage.expressID
```

--------------------------------

### Web-IFC API Reference

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcZone

This snippet provides a structured overview of the Web-IFC API's main constructor and its available properties, as listed in the documentation's table of contents.

```APIDOC
Web-IFC API Reference:
  Constructors:
    - constructor
  Properties:
    - Decomposes
    - Description
    - expressID
    - GlobalId
    - HasAssignments
    - HasAssociations
    - IsDecomposedBy
    - IsDefinedBy
    - IsGroupedBy
    - Name
    - ObjectType
    - OwnerHistory
    - type
```

--------------------------------

### ScheduleStart Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcTaskTime

Indicates the scheduled start time, which can be null or an IfcDateTime type from the IFC4 schema. This property is defined in ifc-schema.ts.

```APIDOC
ScheduleStart: null | IFC4.IfcDateTime
```

--------------------------------

### StartParam Property Definition

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcSweptDiskSolid

Defines the starting parameter for an element. This property can be null or an IfcParameterValue, indicating a specific parameter value.

```APIDOC
StartParam: null | IFC4.IfcParameterValue
```

--------------------------------

### IfcHeatExchanger Constructor API Documentation

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4X3.IfcHeatExchanger

Documents the constructor for the IfcHeatExchanger class, outlining all required and optional parameters for instantiation. It details the types for each parameter, including IFC4X3 schema types and Handle references, and specifies the return type as an IfcHeatExchanger instance.

```APIDOC
new IfcHeatExchanger(
  GlobalId: IFC4X3.IfcGloballyUniqueId,
  OwnerHistory: null | IFC4X3.IfcOwnerHistory | Handle<IFC4X3.IfcOwnerHistory>,
  Name: null | IFC4X3.IfcLabel,
  Description: null | IFC4X3.IfcText,
  ObjectType: null | IFC4X3.IfcLabel,
  ObjectPlacement: null | IFC4X3.IfcObjectPlacement | Handle<IFC4X3.IfcObjectPlacement>,
  Representation: null | IFC4X3.IfcProductRepresentation | Handle<IFC4X3.IfcProductRepresentation>,
  Tag: null | IFC4X3.IfcIdentifier,
  PredefinedType: null | IFC4X3.IfcHeatExchangerTypeEnum
): IFC4X3.IfcHeatExchanger

Parameters:
  GlobalId: IFC4X3.IfcGloballyUniqueId
  OwnerHistory: null | IFC4X3.IfcOwnerHistory | Handle<IFC4X3.IfcOwnerHistory>
  Name: null | IFC4X3.IfcLabel
  Description: null | IFC4X3.IfcText
  ObjectType: null | IFC4X3.IfcLabel
  ObjectPlacement: null | IFC4X3.IfcObjectPlacement | Handle<IFC4X3.IfcObjectPlacement>
  Representation: null | IFC4X3.IfcProductRepresentation | Handle<IFC4X3.IfcProductRepresentation>
  Tag: null | IFC4X3.IfcIdentifier
  PredefinedType: null | IFC4X3.IfcHeatExchangerTypeEnum

Returns: IFC4X3.IfcHeatExchanger
```

--------------------------------

### ScheduleStart Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcResourceTime

Represents the scheduled start time. This property can be null or an IfcDateTime object from the IFC4 schema. It is defined in ifc-schema.ts.

```APIDOC
ScheduleStart: null | IFC4.IfcDateTime
```

--------------------------------

### IfcWindowStyle Constructor API Reference

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcWindowStyle

Documents the constructor for the IfcWindowStyle class, outlining all parameters required for its instantiation, including their types and whether they are optional or mandatory. It also specifies the return type of the constructor.

```APIDOC
new IfcWindowStyle(
  GlobalId: IFC4.IfcGloballyUniqueId,
  OwnerHistory: null | IFC4.IfcOwnerHistory | Handle<IFC4.IfcOwnerHistory>,
  Name: null | IFC4.IfcLabel,
  Description: null | IFC4.IfcText,
  ApplicableOccurrence: null | IFC4.IfcIdentifier,
  HasPropertySets: null | (IFC4.IfcPropertySetDefinition | Handle<IFC4.IfcPropertySetDefinition>)[],
  RepresentationMaps: null | (IFC4.IfcRepresentationMap | Handle<IFC4.IfcRepresentationMap>)[],
  Tag: null | IFC4.IfcLabel,
  ConstructionType: IFC4.IfcWindowStyleConstructionEnum,
  OperationType: IFC4.IfcWindowStyleOperationEnum,
  ParameterTakesPrecedence: IFC4.IfcBoolean,
  Sizeable: IFC4.IfcBoolean
): IFC4.IfcWindowStyle
```

--------------------------------

### IfcSystem Class API Reference

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcSystem

Detailed API documentation for the IfcSystem class, including its hierarchical structure, constructor signature with parameters and return type, and inherited properties with their types and origins.

```APIDOC
Class: IfcSystem
  Hierarchy:
    - IFC2X3.IfcGroup
      - IfcSystem
        - IfcElectricalCircuit
        - IFC2X3.IfcStructuralAnalysisModel

  Constructors:
    constructor(
      GlobalId: IFC2X3.IfcGloballyUniqueId,
      OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>,
      Name: null | IFC2X3.IfcLabel,
      Description: null | IFC2X3.IfcText,
      ObjectType: null | IFC2X3.IfcLabel
    ): IFC2X3.IfcSystem
      Parameters:
        GlobalId: IFC2X3.IfcGloballyUniqueId
        OwnerHistory: IFC2X3.IfcOwnerHistory | Handle<IFC2X3.IfcOwnerHistory>
        Name: null | IFC2X3.IfcLabel
        Description: null | IFC2X3.IfcText
        ObjectType: null | IFC2X3.IfcLabel
      Returns: IFC2X3.IfcSystem
      Overrides: IfcGroup.constructor

  Properties:
    Decomposes: null | (IFC2X3.IfcRelDecomposes | Handle<IFC2X3.IfcRelDecomposes>)[]
      Inherited from: IfcGroup.Decomposes
    Description: null | IFC2X3.IfcText
      Inherited from: IfcGroup.Description
    expressID: number = -1
      Inherited from: IfcGroup.expressID
```

--------------------------------

### ActualStart Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcResourceTime

Represents the actual start time. This property can be null or an IfcDateTime object from the IFC4 schema. It is defined in ifc-schema.ts.

```APIDOC
ActualStart: null | IFC4.IfcDateTime
```

--------------------------------

### IfcAPI Class Reference and Methods

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/web-ifc.IfcAPI

Detailed API documentation for the IfcAPI class, including its constructor, properties, and a selection of methods for model handling and geometry creation. This reference outlines method signatures, parameters, return types, and brief descriptions.

```APIDOC
class IfcAPI {
  constructor(): IfcAPI

  properties: Properties
    Description: Contains all the logic and methods regarding properties, psets, qsets, etc.

  methods:
    CloseModel(modelID: number): void
      Description: Closes a model and frees all related memory
      Parameters:
        modelID: number - Model handle retrieved by OpenModel, model must be closed after use

    CreateAABB(): any

    CreateAlignment(): any

    CreateArc(): any

    CreateBooleanOperator(): any

    CreateCircularSweep(): any

    CreateClothoid(): any
}
```

--------------------------------

### API Property: StartTime

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcRegularTimeSeries

Documents the 'StartTime' property, which specifies the start time using the IfcDateTimeSelect type. This property is inherited from IfcTimeSeries.

```APIDOC
StartTime: IfcDateTimeSelect
Inherited from IfcTimeSeries.StartTime
```

--------------------------------

### Web-IFC API Constructors and Properties Overview

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC4.IfcPerformanceHistory

This section outlines the primary constructors and properties exposed by the Web-IFC API. It acts as a quick reference or table of contents for navigating the detailed API documentation, indicating available members for objects within the library.

```APIDOC
Web-IFC API Members:

Constructors:
  - constructor

Properties:
  - Controls
  - Declares
  - Decomposes
  - Description
  - expressID
  - GlobalId
  - HasAssignments
  - HasAssociations
  - HasContext
  - Identification
  - IsDeclaredBy
  - IsDecomposedBy
  - IsDefinedBy
  - IsNestedBy
  - IsTypedBy
  - LifeCyclePhase
  - Name
  - Nests
  - ObjectType
  - OwnerHistory
  - PredefinedType
  - type
```

--------------------------------

### StartOfNextHatchLine Property

Source: https://thatopen.github.io/engine_web-ifc/docs/classes/ifc-schema.IFC2X3.IfcFillAreaStyleHatching

Specifies the starting point for the next hatch line, using an IfcHatchLineDistanceSelect type. This property is defined in ifc-schema.ts.

```APIDOC
StartOfNextHatchLine: IFC2X3.IfcHatchLineDistanceSelect
```