IfcPreDefinedTextFont

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcPreDefinedTextFont			MOVED	Schema changed from IFCPRESENTATIONRESOURCE to IFCPRESENTATIONAPPEARANCERESOURCE.

Semantic definitions at the entity

Entity definition

The pre defined text font determines those qualified names which can be used for fonts that are in scope of the current data exchange specification (in contrary to externally defined text fonts). There are two choices:

IfcDraughtingPreDefinedTextFont for definitions from ISO/IS 10303-46:1994 for (old) vector based and monospace text.
IfcTextStyleFontModel for definitions from Cascading Style Sheets, level 1, W3C Recommendation 17 Dec 1996, revised 11 Jan 1999, CSS1, for all true type text. The use of the CSS1 definitions is the preferred way to represent text fonts.

NOTE Corresponding ISO 10303 name: pre_defined_text_font. Please refer to ISO/IS 10303-46:1994, p. 138 for the final definition of the formal standard.

HISTORY New entity in IFC2x2.

IFC2x3 CHANGE The IfcTextStyleFontModel has been added as new subtype.

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Description	G
IfcPresentationItem
IfcPreDefinedItem
1	Name	IfcLabel	The string by which the pre defined item is identified. Allowable values for the string are declared at the level of subtypes.	X
IfcPreDefinedTextFont

Formal representations

XML Specification

 <xs:element name="IfcPreDefinedTextFont" type="ifc:IfcPreDefinedTextFont" abstract="true" substitutionGroup="ifc:IfcPreDefinedItem" nillable="true"/>

 <xs:complexType name="IfcPreDefinedTextFont" abstract="true">

  <xs:complexContent>

   <xs:extension base="ifc:IfcPreDefinedItem"/>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcPreDefinedTextFont

 ABSTRACT SUPERTYPE OF(IfcTextStyleFontModel)

 SUBTYPE OF (IfcPreDefinedItem);

END_ENTITY;

 EXPRESS-G diagram

	Vordefinierter Schriftensatz
	Pre Defined Text Font
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