 | Kurve auf einer Fläche |
 | Curve On Surface |
| Item | SPF | XML | Change | Description | IFC2x3 to IFC4 4.0.0.0 |
|---|---|---|---|---|
| IfcCurveOnSurface | ADDED | IFC2x3 to IFC4 4.0.0.0 | ||
| IfcCurveOnSurface | ADDED |
The IfcCurveOnSurface enables the choice of curve types on parameteric surface.
NOTE Definition according to ISO/CD 10303-42:1992
A curve_on_surface is a curve on a parametric surface. It may be any of the following: > * a pcurve or
- a surface curve, including the specialised subtypes of intersection curve and seam curve, or
- a composite curve on surface.
The curve on surface select type collects these curves together for reference purposes.
NOTE Type adapted from curve_on_surface defined in ISO 10303-42.
HISTORY New type in IFC4.
| Type | Description |
|---|---|
| IfcCompositeCurveOnSurface | |
| IfcPcurve | |
| IfcSurfaceCurve |
<xs:group name="IfcCurveOnSurface">
<xs:choice>
<xs:element ref="ifc:IfcCompositeCurveOnSurface"/>
<xs:element ref="ifc:IfcPcurve"/>
<xs:element ref="ifc:IfcSurfaceCurve"/>
</xs:choice>
</xs:group>
TYPE IfcCurveOnSurface = SELECT (
IfcCompositeCurveOnSurface,
IfcPcurve,
IfcSurfaceCurve);
END_TYPE;
EXPRESS-G diagram
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