Model Window

Overview

Provides the information concerning windows required for a basic building model. This information includes:

Specification of window name and description if required
Width and height dimensions of the window
Shape representation of the window
Specification of window type (style)and identification of the type (style) to which a window occurrence conforms
The material forming the basic construction of the window occurrence
The number and general layout of the panels the window occurrence
Indicator for whether geometry of the window is determined by the style information or by lining and panel properties
Lining thickness and depth
Transom thickness and offset
Mullion thickness and offset
Frame thickness and depth
Panel hanging and operation
Panel position

Note that a window can have multiple sets of data concerning lining, transom, mullion, frame and panel depending on the number of each that are within a particular window construction.

Results

Model of window occurrence(s) including shape representation and other basic information

Description	Entity/Pset/Functional Part	MAN	REC	OPT
Model the window type (style)
Set the global unique identifier	IfcWindowStyle.GlobalId::IfcGloballyUniqueId
Apply the owner history	IfcWindowStyle.OwnerHistory::fp_apply_owner_history
Specify the name of the window style	IfcWindowStyle.Name
Specify a description for the window style	IfcWindowStyle.Description
Set the principal material from which the window is constructed from the predefined selection	IfcWindowStyle.ConstructionType::IfcWindowStyleConstructionEnum
Set the general layout and operation of the window from the predefined selection	IfcWindowStyle.OperationType::IfcWindowStyleOperationEnum
Set whether the parameter given in the attached lining and panel properties exactly define the geometry (TRUE), or whether the attached style shape takes precedence (FALSE). In the last case the parameter has only informative value.	IfcWindowStyle.ParameterTakesPrecedence::BOOLEAN
Set whether the attached ShapeStyle can be sized (using scale factor of transformation), or not (FALSE). If not, the ShapeStyle should be inserted by the IfcWindow (using IfcMappedItem) with the scale factor = 1.	IfcWindowStyle.Sizeable::BOOLEAN
A window is generally a discrete product having a predefined shape representation (geometry) that can be specified for the type. Provision of a representation map is normally optional within the model but should be asserted for building model exchange.	IfcWindowStyle.RepresentationMaps::fp_map_representation
Model the window occurrence
Set the global unique identifier for the window	IfcWindow.GlobalId::IfcGloballyUniqueId
Apply the owner history	IfcWindow.OwnerHistory::fp_apply_owner_history
Specify the name of the window	IfcWindow.Name::IfcLabel
Specify a description for the window	IfcWindow.Description::IfcText
Set the overall height of the window Sets the height(Z dimension of the bounding box of the window shape. If not set, the overall height is taken from the opening which the window fills.	IfcWindow.OverallHeight::IfcPositiveLengthMeasure
Set the overall width of the window Sets the width (X dimension) of the bounding box of the window shape. If not set, the overall width is taken from the opening which the window fills.	IfcWindow.OverallWidth::IfcPositiveLengthMeasure
Establish the placement of the origin point of the window	IfcWindow.ObjectPlacement::fp_place_object
Define the shape representation for the window A shape representation is only specified for a window occurrence if a representation map is not specified for the window style. Thus, generally, it is anticipated that this attribute will not be used. However, it should be borne in mind that a window may have several representations and therefore a special occurrence representation for the window may be applied.	IfcWindow.Representation::fp_represent_product
Define the type of window to which the window occurrence conforms	fp_define_by_type
Model the window lining properties
Set the global unique identifier	IfcWindowLiningProperties.GlobalId::IfcGloballyUniqueId
Apply the owner history	IfcWindowLiningProperties.OwnerHistory::fp_apply_owner_history
Specify the name of the window lining properties	IfcWindowLiningProperties.Name::IfcLabel
Specify a description for the window lining properties	IfcWindowLiningProperties.Description::IfcText
Set the lining thickness and depth Note that these values must be asserted together or not at all. The IFC model does not allow one value to be asserted without the other.	IfcWindowLiningProperties.LiningThickness IfcWindowLiningProperties.LiningDepth
Set transom thickness	IfcWindowLiningProperties.TransomThickness
Set transom offset Note that first and second transom offsets may be individually set.	IfcWindowLiningProperties.FirstTransomOffset IfcWindowLiningProperties.SecondTransomOffset
Set mullion thickness	IfcWindowLiningProperties.TransomThickness
Set mullion offset Note that first and second mullion offsets may be individually set.	IfcWindowLiningProperties.FirstMullionOffset IfcWindowLiningProperties.SecondMullionOffset
Identify the shape aspect to which the window lining properties belong	IfcWindowLiningProperties.ShapeAspectStyle::fp_style_shape_aspect ***
Model the window panel properties
Set the global unique identifier	IfcWindowPanelProperties.GlobalId::IfcGloballyUniqueId
Apply the owner history IfcWindowPanelProperties.	OwnerHistory::fp_apply_owner_history
Specify the name of the window panel properties	IfcWindowPanelProperties.Name::IfcLabel
Specify a description for the window panel properties	IfcWindowPanelProperties.Description::IfcText
Set the frame depth	IfcWindowPanelProperties.FrameDepth
Set the frame thickness	IfcWindowPanelProperties.FrameThickness
Set the operation type of the panel from the predefined selection Value must be set if the panel properties are asserted.	IfcWindowPanelProperties.OperationType
Set the panel position from the predefined selection Value must be set if the panel properties are asserted.	IfcWindowPanelProperties.PanelPosition
Identify the shape aspect to which the window panel properties belong	IfcWindowPanelProperties.ShapeAspectStyle::fp_style_shape_aspect ***
Set values in the property set Pset_WindowCommon as indicated below.
Reference type of window from the list defined for the project	Pset_WindowCommon.Reference
Fire rating (extent to which window is designed to resist fire)	Pset_WindowCommon.FireRating
Indication of whether the window is to be used as an exterior element of the building. If so, the value should be set to TRUE	Pset_WindowCommon.IsExternal
Set values in the property set Pset_ DoorWindowGlazingType as indicated below.
The number of layers of glass in the window (e.g. 1, 2 or 3)	Pset_DoorWindowGlazingType.GlassLayers
Define the property set(s) for the window occurrence	fp_define_by_properties

IFC Entities Required

IfcBuildingElement
IfcElement
IfcObject
IfcProduct
IfcPropertyDefinition
IfcPropertySetDefinition
IfcPropertySet
IfcRoot
IfcTypeObject
IfcTypeProduct
IfcWindow
IfcWindowLiningProperties
IfcWindowPanelProperties
IfcWindowStyle

IFC Datatypes Required

IfcGloballyUniqueId
IfcIdentifier
IfcLabel
IfcLengthMeasure
IfcNormalisedRatioMeasure
IfcPositiveLengthMeasure
IfcRatioMeasure
IfcText
IfcWindowPanelOperationEnum
IfcWindowPanelPositionEnum
IfcWindowStyleConstructionEnum
IfcWindowStyleOperationEnum

IFC Functions Required

-

IFC Property Sets Required

Pset_WindowCommon
Pset_DoorWindowGlazingType

IDM Functional Parts Required

fp_apply_owner_history
fp_define_property_set
fp_map_representation
fp_place_object
fp_property
fp_represent_product
fp_style_shape_aspect

EXPRESS-G

EXPRESS Schema

SCHEMA FP_MODEL_WINDOW;

  TYPE IfcGloballyUniqueId = STRING (22) FIXED;
  END_TYPE;

  TYPE IfcIdentifier = STRING;
  END_TYPE;

  TYPE IfcLabel = STRING;
  END_TYPE;

  TYPE IfcLengthMeasure = REAL;
  END_TYPE;

  TYPE IfcNormalisedRatioMeasure = IfcRatioMeasure;
    WHERE
      WR1 : {0.0 <= SELF <= 1.0};
  END_TYPE;

  TYPE IfcRatioMeasure = REAL;
  END_TYPE;

  TYPE IfcPositiveLengthMeasure = IfcLengthMeasure;
    WHERE
      WR1 : SELF > 0;
  END_TYPE;

  TYPE IfcText = STRING;
  END_TYPE;

  TYPE IfcWindowPanelOperationEnum = ENUMERATION OF
    (SIDEHUNGRIGHTHAND,
     SIDEHUNGLEFTHAND,
     TILTANDTURNRIGHTHAND,
     TILTANDTURNLEFTHAND,
     TOPHUNG,
     BOTTOMHUNG,
     PIVOTHORIZONTAL,
     PIVOTVERTICAL,
     SLIDINGHORIZONTAL,
     SLIDINGVERTICAL,
     REMOVABLECASEMENT,
     FIXEDCASEMENT,
     OTHEROPERATION,
     NOTDEFINED);
  END_TYPE;

  TYPE IfcWindowPanelPositionEnum = ENUMERATION OF
    (LEFT,
     MIDDLE,
     RIGHT,
     BOTTOM,
     TOP,
     NOTDEFINED);
  END_TYPE;

  TYPE IfcWindowStyleConstructionEnum = ENUMERATION OF
    (ALUMINIUM,
     HIGH_GRADE_STEEL,
     STEEL,
     WOOD,
     ALUMINIUM_WOOD,
     PLASTIC,
     OTHER_CONSTRUCTION,
     NOTDEFINED);
  END_TYPE;

  TYPE IfcWindowStyleOperationEnum = ENUMERATION OF
    (SINGLE_PANEL,
     DOUBLE_PANEL_VERTICAL,
     DOUBLE_PANEL_HORIZONTAL,
     TRIPLE_PANEL_VERTICAL,
     TRIPLE_PANEL_BOTTOM,
     TRIPLE_PANEL_TOP,
     TRIPLE_PANEL_LEFT,
     TRIPLE_PANEL_RIGHT,
     TRIPLE_PANEL_HORIZONTAL,
     USERDEFINED,
     NOTDEFINED);
  END_TYPE;

  ENTITY IfcProduct
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcObject);
      ObjectPlacement : fp_place_object;
      Representation  : fp_represent_product;
    WHERE
      WR1 : (EXISTS(Representation) AND EXISTS(ObjectPlacement))
            OR (EXISTS(Representation) AND 
            (NOT('IFC2X2_FINAL.IFCPRODUCTDEFINITIONSHAPE' IN TYPEOF(Representation))))
            OR (NOT(EXISTS(Representation)));
  END_ENTITY;

  ENTITY IfcObject
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcRoot);
      ObjectType : OPTIONAL IfcLabel;
    WHERE
      WR1 : SIZEOF(QUERY(temp <* IsDefinedBy | 'IFC2X2_FINAL.IFCRELDEFINESBYTYPE' IN TYPEOF(temp))) <= 1;
  END_ENTITY;

  ENTITY IfcRoot
    ABSTRACT SUPERTYPE OF (ONEOF(IfcObject, IfcPropertyDefinition));
      GlobalId     : IfcGloballyUniqueId;
      Name         : OPTIONAL IfcLabel;
      Description  : OPTIONAL IfcText;
      OwnerHistory : fp_apply_owner_history;
    UNIQUE
      UR1 : GlobalId;
  END_ENTITY;

  ENTITY IfcPropertyDefinition
    ABSTRACT SUPERTYPE OF (ONEOF(IfcPropertySetDefinition, IfcTypeObject))
    SUBTYPE OF(IfcRoot);
  END_ENTITY;

  ENTITY IfcPropertySetDefinition
    ABSTRACT SUPERTYPE OF (ONEOF(IfcWindowLiningProperties, IfcWindowPanelProperties, IfcPropertySet))
    SUBTYPE OF(IfcPropertyDefinition);
    INVERSE
      DefinesType : SET [0:1] OF IfcTypeObject FOR HasPropertySets;
  END_ENTITY;

  ENTITY IfcWindowLiningProperties
    SUBTYPE OF(IfcPropertySetDefinition);
      LiningDepth         : OPTIONAL IfcPositiveLengthMeasure;
      LiningThickness     : OPTIONAL IfcPositiveLengthMeasure;
      TransomThickness    : OPTIONAL IfcPositiveLengthMeasure;
      MullionThickness    : OPTIONAL IfcPositiveLengthMeasure;
      FirstTransomOffset  : OPTIONAL IfcNormalisedRatioMeasure;
      SecondTransomOffset : OPTIONAL IfcNormalisedRatioMeasure;
      FirstMullionOffset  : OPTIONAL IfcNormalisedRatioMeasure;
      SecondMullionOffset : OPTIONAL IfcNormalisedRatioMeasure;
      ShapeAspectStyle    : OPTIONAL fp_style_shape_aspect;
    WHERE
      WR1 : (EXISTS(LiningDepth) AND EXISTS(LiningThickness)) XOR
            (NOT(EXISTS(LiningDepth)) AND NOT(EXISTS(LiningThickness)));
  END_ENTITY;

  ENTITY fp_style_shape_aspect;
  END_ENTITY;

  ENTITY IfcWindowPanelProperties
    SUBTYPE OF(IfcPropertySetDefinition);
      OperationType    : IfcWindowPanelOperationEnum;
      PanelPosition    : IfcWindowPanelPositionEnum;
      FrameDepth       : OPTIONAL IfcPositiveLengthMeasure;
      FrameThickness   : OPTIONAL IfcPositiveLengthMeasure;
      ShapeAspectStyle : OPTIONAL fp_style_shape_aspect;
  END_ENTITY;

  ENTITY IfcPropertySet
    SUBTYPE OF(IfcPropertySetDefinition);
      HasProperties : SET [1:?] OF fp_property;
    WHERE
      WR31 : EXISTS(SELF\IfcRoot.Name);
      WR32 : IfcUniquePropertyName(HasProperties);
  END_ENTITY;

  ENTITY fp_property;
  END_ENTITY;

  ENTITY IfcTypeObject
    SUBTYPE OF(IfcPropertyDefinition);
      ApplicableOccurrence : OPTIONAL IfcLabel;
      HasPropertySets      : OPTIONAL LIST [1:?] OF IfcPropertySetDefinition;
    WHERE
      WR1 : EXISTS(SELF\IfcRoot.Name);
  END_ENTITY;

  ENTITY IfcTypeProduct
    SUBTYPE OF(IfcTypeObject);
      Tag                : OPTIONAL IfcLabel;
      RepresentationMaps : SET [1:?] OF fp_map_representation;
    WHERE
      WR41 : NOT(EXISTS(SELF\IfcTypeObject.ObjectTypeOf[1])) OR
             (SIZEOF(QUERY(temp <* SELF\IfcTypeObject.ObjectTypeOf[1].RelatedObjects |
             NOT('IFC2X2_FINAL.IFCPRODUCT' IN TYPEOF(temp)))
             ) = 0);
  END_ENTITY;

  ENTITY IfcWindowStyle
    SUBTYPE OF(IfcTypeProduct);
      ConstructionType         : IfcWindowStyleConstructionEnum;
      OperationType            : IfcWindowStyleOperationEnum;
      ParameterTakesPrecedence : BOOLEAN;
      Sizeable                 : BOOLEAN;
  END_ENTITY;

  ENTITY fp_map_representation;
  END_ENTITY;

  ENTITY fp_apply_owner_history;
  END_ENTITY;

  ENTITY IfcElement
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcProduct);
      Tag : OPTIONAL IfcIdentifier;
  END_ENTITY;

  ENTITY IfcBuildingElement
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcElement);
  END_ENTITY;

  ENTITY IfcWindow
    SUBTYPE OF(IfcBuildingElement);
      OverallHeight : OPTIONAL IfcPositiveLengthMeasure;
      OverallWidth  : OPTIONAL IfcPositiveLengthMeasure;
  END_ENTITY;

  ENTITY fp_place_object;
  END_ENTITY;

  ENTITY fp_represent_product;
  END_ENTITY;

END_SCHEMA;

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