IfcStyledItem
Definition
from ISO/CD 10303-46:1992: The
styled item is an
assignment of style for presentation to a geometric representation item
as it is used in a representation.
Definition
from IAI: The IfcStyledItem
holds
presentation style information for products, either explicitly for an IfcGeometricRepresentationItem
being part of an IfcShapeRepresentation
assigned to a product,
or by assigning presentation information to IfcMaterial
being
assigned as other representation for a product.
NOTE
Corresponding STEP name:
styled_item. Please refer to ISO/IS 10303-46:1994 for the final
definition of the formal standard.
HISTORY New entity in
Release IFC2x Edition 2.
IFC2x
Edition 2
Addendum
1
CHANGE The entity IfcStyledItem
has been made non
abstract and the attribute Name
has been promoted from subtype IfcAnnotationOccurrence.
Upward compatibility for file based exchange is guaranteed.
IFC2x Edition 3
CHANGE
The attribute Item
has been made optional, upward compatibility
for file based exchange
is guaranteed.
EXPRESS specification:
|
|
|
|
|
|
| WR11
|
:
|
SIZEOF(Styles) = 1;
|
| WR12
|
:
|
NOT('IFCPRESENTATIONAPPEARANCERESOURCE.IFCSTYLEDITEM' IN TYPEOF(Item));
|
|
|
|
Attribute definitions:
| Item
|
:
|
A geometric representation item to which the style is assigned.
IFC2x Edition 2 Addendum 2 CHANGE The attribute Item has been made optional. Upward compatibility for file based exchange is guaranteed.
|
| Styles
|
:
|
Representation style assignments which are assigned to an item. NOTE: In current IFC release only one
presentation style assignment shall be assigned.
|
| Name
|
:
|
The word, or group of words, by which the styled item is referred to.
|
Formal Propositions:
| WR11
|
:
|
Restricts the number of styles to 1 (the datatype SET remains for compatibility reasons with ISO 10303-46).
|
| WR12
|
:
|
A styled item cannot be styled by another styled item.
|
Inheritance graph