Definition from IAI: The window style (IfcWindowStyle)
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 2.x
ISSUE See issue and change log for changes made in IFC Release
2.x
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 parameter
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.
