IfcWindowStyle
Definition from IAI: The window style defines a particular style
of windows, which may be included into the spatial context of the building
model through an (or multiple) instances of IfcWindow. A window style
defines the overall parameter of the window style and refers to the particular
parameter of the lining and one (or several) panels through the
IfcWindowLiningProperties and the IfcWindowPanelProperties.
The window entity (IfcWindow) defines a particular occurrence of
a window inserted in the spatial context of a project. The actual parameter of
the window and/or its shape is defined at the IfcWindowStyle, to which
the IfcWindow related by the inverse relationship IsDefinedBy
pointing to IfcRelDefinesByType. The IfcWindowStyle also defines
the particular attributes for the lining (IfcWindowLiningProperties) and
panels (IfcWindowPanelProperties).
HISTORY New entity in IFC
Release 2x.
IFC2x2 COMPATIBILITY NOTICE:
The entity IfcWindowStyle is still subtyped from the
IfcTypeProduct to provide upward compatibility. This is a recorded
anomaly as all other types for building elements are now subtyped from
IfcBuildingElementType and have the suffix "Type", not "Style".
Geometry Use Definitions:
The IfcWindowStyle defines the baseline geometry, or the
representation map, for all occurrences of the window style, given by the
IfcWindow, pointing to this style. The representation of the window style may
be given by the agreed set of minimal parameters, defined for the window lining
and the window panel(s), or it my be given by a geometric representation used
by the IfcRepresentationMap. The attribute
ParameterTakesPrecedence decides, whether the set of parameters can be
used to exactly represent the shape of the window style (TRUE), or whether the
attached IfcRepresentationMap holds the exact representation
(FALSE).
Interpretation of parameters
The IfcWindowStyleOperationTypeEnum defines the general layout of
the window style. Depending on the enumerator, the appropriate instances of
IfcWindowLiningProperties and IfcWindowPanelProperties are
attached in the list of HasPropertySets. See geometry use definitions
there.
EXPRESS specification:
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| ParameterTakesPrecedence
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BOOLEAN;
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Attribute definitions:
| ConstructionType
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Type defining the basic construction and material type of the window.
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| OperationType
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Type defining the general layout and operation of the window style.
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| ParameterTakesPrecedence
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The Boolean value reflects, whether the parameter given in the attached lining and panel properties exactly
define the geometry (TRUE), or whether the attached style shape take precedence (FALSE). In the last
case the parameter have only informative value.
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| Sizeable
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The Boolean indicates, 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.
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Inheritance graph
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| ApplicableOccurrence
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OPTIONAL IfcLabel;
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| ParameterTakesPrecedence
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BOOLEAN;
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