8.9.2.8 IfcKnotType
8.9.2.8.1 Semantic definition
The IfcKnotType indicates the particular form of b-spline knots.
8.9.2.8.2 Type values
| Type | Description |
|---|---|
PIECEWISE_BEZIER_KNOTS
|
The form of knots appropriate for a piecewise Bezier curve. |
QUASI_UNIFORM_KNOTS
|
The form of knots appropriate for a quasi-uniform B-spline curve. |
UNIFORM_KNOTS
|
The form of knots appropriate for a uniform B-spline curve. |
UNSPECIFIED
|
The type of knots is not specified. This includes the case of non uniform knots. |
8.9.2.8.3 Formal representation
TYPE IfcKnotType = ENUMERATION OF
(PIECEWISE_BEZIER_KNOTS
,QUASI_UNIFORM_KNOTS
,UNIFORM_KNOTS
,UNSPECIFIED);
END_TYPE;