Returns a complete data description of a nurbs surface trim. A trim is a nurbs curve list that is projected on a nurbs surface.

Note: This method uses output arguments. C# and some scripting languages (such as JScript and PerlScript) don't support arguments passed by reference. However, there is a alternate version of this method which is considered safe to use with C#, JScript and PerlScript: NurbsSurface.GetTrim2.

NurbsSurface.GetTrim( Int32 in_nTrimIndex, siNurbsFormat in_eNurbsFormat, Object& out_vsabIsBoundary, Object& out_vsalProjectionType, Object& out_vsalCount, Object& out_vsaControlPoints, Object& out_vsaNbControlPoints, Object& out_vsadKnots, Object& out_vsaNbKnots, Object& out_vsasClosed, Object& out_vsalDegree, Object& out_vsalParameterization );

NurbsSurface.GetTrim( TrimIndex, [NurbsFormat], IsBoundary, ProjectionType, Count, ControlPoints, [NbControlPoints], [Knots], [NbKnots], [Closed], [Degree], [Parameterization] );

Parameter	Type	Description
TrimIndex	Long	Specifies which trim must be described.
NurbsFormat	siNurbsFormat	Specifies how the data is formatted. Default Value: siSINurbs
IsBoundary	Boolean	Specifies whether the trim is a boundary.
ProjectionType	Long	Specifies the projection type of this trim. Possible Values: Description: 0 UV space 1 World space
Count	Long	Number of nurbs curve in the trim
ControlPoints	2D Array	The control points are stored in a 2 dimensional array. The array is a 4 x Number of ControlPoints
NbControlPoints	Array of Long	Specifies the number of ControlPoints per NurbsCurve.
Knots	Array of Doubles	An array of knot values.
NbKnots	Array of Longs	Specifies the number of Knots per nurbs curve.
Closed	Array of Boolean	Specifies whether the nurbs curve is closed . Default Value: False
Degree	Array of Long	Degree of the nurbs curves. Default Value: 3
Parameterization	Array of siKnotParameterization	The parameterization factor of the nurbs curve.

VBScript Example

Dim lDegree, bClosed, eParameterization, aControlVertex, aKnots, lCount, aNbControlVertex, bIsBoundary, lProjType
set oRoot = application.activeproject.activescene.root
set oSphere = oRoot.AddGeometry( "Sphere", "NurbsSurface" )
' extract each trim contained in the surface
for i = 0 to (oSphere.ActivePrimitive.Geometry.Surfaces.Item(0).TrimCount - 1)
	oSphere.ActivePrimitive.Geometry.Surfaces.Item(0).GetTrim _
		i, _
		siSINurbs, _
		bIsBoundary, _
		lProjType, _
		lCount, _
		aControlVertex, _
		aNbControlVertex, _
		aKnots , _
		aNbKnots, _
		bClosed, _
		lDegree, _
		eParameterization
	oRoot.AddNurbsCurveList2 _
		lCount, _
		aControlVertex, _
		aNbControlVertex, _
		aKnots, _
		aNbKnots, _
		bClosed, _
		lDegree, _
		eParameterization, _
		siSINurbs
next

NurbsSurfaceMesh.AddSurfaceWithTrim NurbsSurface.GetTrim2 NurbsSurface.TrimCount