IfcCurveStyleFontAndScaling

Semantic definitions at the entity

Entity definition

The IfcCurveStyleFontAndScaling allows for the reuse of the same curve style definition in several sizes. The definition of the CurveFontScale is the scaling of a base curve style pattern to be used as a new or derived curve style pattern.

NOTE The CurveFontScale should not be mixed up with the target plot scale.

An example for IfcCurveStyleFontAndScaling is the sizing of a basic curve style dash pattern 'dash' (visible 0.01m, invisible 0.005m) into 'dash large' with CurveFontScale = 2 (resulting in visible 0.02m, invisible 0.01m), and into 'dash small' with CurveFontScale = 0.5 (resulting in visible 0.005m, invisible 0.0025m).

NOTE Definition according to ISO/CD 10303-46:1992
A curve style font and scaling is a curve style font and a scalar factor for that font, so that a given curve style font may be applied at various scales.

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

HISTORY New entity in IFC2x2.

Attribute definitions

#	Attribute	Type	Cardinality	Description	C
1	Name	IfcLabel	[0:1]	Name that may be assigned with the scaling of a curve font.	X
2	CurveFont	IfcCurveStyleFontSelect	[1:1]	The curve font to be scaled.	X
3	CurveFontScaling	IfcPositiveRatioMeasure	[1:1]	The scale factor.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcPresentationItem
IfcCurveStyleFontAndScaling
1	Name	IfcLabel	[0:1]	Name that may be assigned with the scaling of a curve font.	X
2	CurveFont	IfcCurveStyleFontSelect	[1:1]	The curve font to be scaled.	X
3	CurveFontScaling	IfcPositiveRatioMeasure	[1:1]	The scale factor.	X

Formal representations

XSD Specification

 <xs:element name="IfcCurveStyleFontAndScaling" type="ifc:IfcCurveStyleFontAndScaling" substitutionGroup="ifc:IfcPresentationItem" nillable="true"/>

 <xs:complexType name="IfcCurveStyleFontAndScaling">

  <xs:complexContent>

   <xs:extension base="ifc:IfcPresentationItem">

    <xs:sequence>

     <xs:element name="CurveFont">

      <xs:complexType>

       <xs:group ref="ifc:IfcCurveStyleFontSelect"/>

      </xs:complexType>

     </xs:element>

    </xs:sequence>

    <xs:attribute name="Name" type="ifc:IfcLabel" use="optional"/>

    <xs:attribute name="CurveFontScaling" type="ifc:IfcPositiveRatioMeasure" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcCurveStyleFontAndScaling

 SUBTYPE OF (IfcPresentationItem);

  Name : OPTIONAL IfcLabel;

  CurveFont : IfcCurveStyleFontSelect;

  CurveFontScaling : IfcPositiveRatioMeasure;

END_ENTITY;

 EXPRESS-G diagram

	Linienstilsatz mit verschiedenem Maßstab
	Curve Style Font And Scaling