| QName | Type | Fixed | Default | Use | Inheritable | Annotation |
|---|---|---|---|---|---|---|
| KnotSpec | ifc:IfcKnotType | optional | ||||
| SelfIntersect | ifc:logical | optional | ||||
| SurfaceForm | ifc:IfcBSplineSurfaceForm | optional | ||||
| UClosed | ifc:logical | optional | ||||
| UDegree | xs:long | optional | ||||
| UKnots | restriction of list of ifc:IfcParameterValue | optional | ||||
| UMultiplicities | restriction of list of xs:long | optional | ||||
| VClosed | ifc:logical | optional | ||||
| VDegree | xs:long | optional | ||||
| VKnots | restriction of list of ifc:IfcParameterValue | optional | ||||
| VMultiplicities | restriction of list of xs:long | optional | ||||
| href | xs:anyURI | optional | ||||
| id | xs:ID | optional | ||||
| path | xs:NMTOKENS | optional | ||||
| pos | restriction of list of xs:integer | optional | ||||
| ref | xs:IDREF | optional |
<xs:element name="IfcRationalBSplineSurfaceWithKnots" type="ifc:IfcRationalBSplineSurfaceWithKnots" substitutionGroup="ifc:IfcBSplineSurfaceWithKnots" nillable="true"/> |