Definition from ISO 6707-1:1989: Construction for closing an opening, intended primarily for access with hinged, pivoted or sliding operation.
Definition from buildingSMART: The door is a building element that is predominately used to provide controlled access for people and goods. It includes constructions with hinged, pivoted, sliding, and additionally revolving and folding operations. A door consists of a lining and one or several panels, properties concerning the lining and panel are defined by the IfcDoorLiningProperties and the IfcDoorPanelProperties.
The door entity, IfcDoor, defines a particular occurrence of a door inserted in the spatial context of a project. A door can:
The actual parameter of the door and/or its shape are defined by the IfcDoor as the occurrence definition (or project instance), or by the IfcDoorStyle as the specific definition (or project type). Parameters are given:
The IfcDoor is normally inserted into an IfcOpeningElement (but does not need to - see above) using the IfcRelFillsElement relationship. It is also directly linked to the spatial structure of the project (and here normally to the IfcBuildingStorey, or to the IfcSpace) using the IfcRelContainedInSpatialStructure relationship.
HISTORY New entity in IFC Release 1.0.
Property Set Use Definition:
The property sets relating to the IfcDoor are defined by the IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to the IfcDoor are part of this IFC release:
Geometry Use Definitions:
The geometric representation of IfcDoor is given by the IfcProductDefinitionShape, allowing multiple geometric representations. The IfcDoor, in case of an occurrence object, gets its parameter and shape from the IfcDoorStyle. If an IfcRepresentationMap (a block definition) is defined for the IfcDoorStyle, then the IfcDoor inserts it through the IfcMappedItem.
The local placement for IfcDoor is defined in its supertype IfcProduct. It is defined by the IfcLocalPlacement, which defines the local coordinate system that is referenced by all geometric representations.
The geometric representation of IfcDoor is defined using the following (potentially multiple) IfcShapeRepresentation's for its IfcProductDefinitionShape:
In addition the parametric representation of a (limited) door shape is available by applying the parameters from IfcDoorStyle referencing IfcDoorLiningProperties and IfcDoorPanelProperties. The purpose of the parameter is described at those entities and below (door opening operation by door style).
Profile - 'GeometricCurveSet' representation
The door profile is represented by a three-dimensional closed curve within a particular shape representation. The profile is used to apply the parameter of the parametric door representation. The following attribute values for the IfcShapeRepresentation holding this geometric representation shall be used:
A 'Profile' representation has to be provided if:
FootPrint - 'GeometricCurveSet' or 'Annotation2D' representation
The door foot print is represented by a set of two-dimensional curves (or in case of 'Annotation2D' additional hatching and text) within a particular shape representation. The foot print is used for the planview representation of the door. The following attribute values for the IfcShapeRepresentation holding this geometric representation shall be used:
Body - 'SweptSolid', 'SurfaceModel', or 'Brep' representation
The door body is either represented parameterically (see parametric representation) or by explicit 3D shape. The 3D shape is given by using extrusion geometry, or surface models, or Brep models within a particular shape representation. The body is used for the model view representation of the door. The following attribute values for the IfcShapeRepresentation holding this geometric representation shall be used:
The 'FootPrint' and 'Body' geometric representation of IfcDoor can be shared among several identical doors using the 'MappedRepresentation'. The following attribute values for the IfcShapeRepresentation holding this geometric representation shall be used:
The same constraints, as given for the 'FootPrint', 'Body' representation identifiers, shall apply to the MappedRepresentation of the IfcRepresentationMap.
Door opening operation by door style
The parameters that defines the shape of the IfcDoor, are given at the IfcDoorStyle and the property sets, which are included in the IfcDoorStyle. The IfcDoor only defines the local placement which determines the opening direction of the door. The overall size of the IfcDoor to be used to apply the lining or panel parameter provided by the IfcDoorStyle is determined by the IfcShapeRepresentation with the RepresentationIdentifier = 'Profile'. Only in case of an IfcDoor inserted into an IfcOpeningElement using the IfcRelFillsElement relationship, having a horizontal extrusion (along the y-axis of the IfcDoor), the overall size is determined by the extrusion profile of the IfcOpeningElement.
Note The OverallWidth and OverallHeight parameters are for informational purpose only.
|The door panel (for swinging doors) opens always into the direction of the positive Y axis of the local placement. The determination of whether the door opens to the left or to the right is done at the level of the IfcDoorStyle. Here it is a left side opening door given by IfcDoorStyle.OperationType = SingleSwingLeft|
|If the door should open to the other side, then the local placement has to be changed. It is still a left side opening door, given by IfcDoorStyle.OperationType = SingleSwingLeft|
|If the door panel (for swinging doors) opens to the right, a separate door style needs to be used (here IfcDoorStyle.OperationType = SingleSwingRight) and it always opens into the direction of the positive Y axis of the local placement.|
|If the door panel (for swinging doors) opens to the right, and into the opposite directions, the local placement of the door need to change. The door style is given by IfcDoorStyle.OperationType = SingleSwingRight.|
|OverallHeight||:|| Overall measure of the height, it reflects the Z Dimension of a bounding box, enclosing the
NOTE The body of the door might be taller then the door opening (e.g. in cases where the door lining includes a casing). In these cases the OverallHeight shall still be given as the door opening height, and not as the total height of the door lining.
|OverallWidth||:|| Overall measure of the width, it reflects the X Dimension of a bounding box, enclosing the
NOTE The body of the door might be wider then the door opening (e.g. in cases where the door lining includes a casing). In these cases the OverallWidth shall still be given as the door opening width, and not as the total width of the door lining.