IfcCurveInterpolationEnum

Natural language names

Curve Interpolation Enum

Change log

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcCurveInterpolationEnum			ADDED

Semantic definitions at the type

Type definition

IfcCurveInterpolationEnum specifies the possible methods for the interpolation of property values given as a curve.

HISTORY New type in IFC4.

Enumeration definition

Constant	Description
LINEAR	Indicates that values between the defined values are to be found by linear interpolation.
LOG_LINEAR	Indicates that values between the defined values are to be found by linear interpolation of the natural logarithm (base e) of the values.
LOG_LOG	Indicates that values between the defined values are to be found by linear interpolation of the Briggs' logarithm (base 10) of the values.
NOTDEFINED	No interpolation information is provided

Formal representations

XSD Specification

 <xs:simpleType name="IfcCurveInterpolationEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="linear"/>

   <xs:enumeration value="log_linear"/>

   <xs:enumeration value="log_log"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcCurveInterpolationEnum = ENUMERATION OF (

 LINEAR, 
 LOG_LINEAR, 
 LOG_LOG, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

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