 | Curve Interpolation Enum |
| Item | SPF | XML | Change | Description | IFC2x3 to IFC4 |
|---|---|---|---|---|
| IfcCurveInterpolationEnum | ADDED |
IfcCurveInterpolationEnum specifies the possible methods for the interpolation of property values given as a curve.
HISTORY New type in IFC4.
| 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 |
<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>
TYPE IfcCurveInterpolationEnum = ENUMERATION OF (
LINEAR,
LOG_LINEAR,
LOG_LOG,
NOTDEFINED);
END_TYPE;
References: IfcPropertyTableValue
EXPRESS-G diagram
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