| 枚举 | 说明 |
|---|---|
| IfcBSplineCurveForm |
This type is used to indicate that the B-spline curve represents a part of a curve of some sppecific form.
|
| IfcTransitionCode |
This type conveys the continuity properties of a composite curve or surface.
|
| IfcTrimmingPreference |
This type is used to describe the preferred way of trimming a parametric curve where the trimming is multiply defined.
|
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