## NurbsCurveList.Set

### Description

Sets a nurbs curve list from a complete data description. This is only available from scripted operators, if you use it on a object with some clusters and you change the topology the burden of updating the clusters is on the user. For non-scripted operators this property can only be set if the object has been frozen.
Note: This method uses output arguments. C# and some scripting languages (such as JScript and PerlScript) don't support arguments passed by reference so you need to use the best workaround for your situation:
For scripting languages this method returns an ISIVTCollection which you can use to get the output arguments.
For C# the only available workaround is to create a VBScript custom command which returns both the output arguments and the return value in one array. For details, see What Happens when the Function Already Returns a Value?.

### C# Syntax

    NurbsCurveList.Set( Object in_vsalCount, Object in_vsaControlPoints, Object in_vsaNbControlPoints, Object in_vsadKnots, Object in_vsaNbKnots, Object in_vsasClosed, Object in_vsalDegree, Object in_vsalParameterization, siNurbsFormat in_eNurbsFormat );

### Scripting Syntax

    NurbsCurveList.Set( Count, ControlPoints, [NbControlPoints], [Knots], [NbKnots], [Closed], [Degree], [Parameterization], [NurbsFormat] );

### Parameters

Parameter | Type | Description
--- | --- | ---
Count | Long | Number of NurbsCurve in the NurbsCurveList.
ControlPoints | 2D Array | The control points are stored in a 2 dimensional array. The array is a 4 x Number of U ControlPoints
NbControlPoints | Array of Long | Specifies the number of ControlPoints per NurbsCurve.
Knots | Array of Doubles | An array of knot values.
NbKnots | Array of Long | Specifies the number of Knots per NurbsCurve.
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.
NurbsFormat | siNurbsFormat | Specifies how the data is formatted. Default Value: siSINurbs

### Examples

#### VBScript Example

    Dim lDegree, bClosed, eParameterization, aControlVertex, aKnots, lCount, aNbControlVertex
    set oRoot = application.activeproject.activescene.root
    set oSpiral = oRoot.AddGeometry( "Spiral", "NurbsCurve" )
    FreezeObj oSpiral
    set oArc = oRoot.AddGeometry( "Arc", "NurbsCurve" )
    oArc.ActivePrimitive.Geometry.Get _
            siSINurbs, _
            lCount, _
            aControlVertex, _
            aNbControlVertex, _
            aKnots , _
            aNbKnots, _
            bClosed, _
            lDegree, _
            eParameterization
    ' add arc data to  nurbs curve list.
    oSpiral.activeprimitive.geometry.Set _
            lCount, _
            aControlVertex, _
            aNbControlVertex, _
            aKnots, _
            aNbKnots, _
            bClosed, _
            lDegree, _
            eParameterization, _
            siSINurbs