## NurbsSurfaceMesh.Set

### Description

Sets a NurbsSurfaceMesh from a complete data description of the mesh. This is only available from scripted operators. Note: 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.

### C# Syntax

    NurbsSurfaceMesh.Set( Object in_vsalCount, Object in_vsaUVControlPoints, Object in_vsaNbUControlPoints, Object in_vsaNbVControlPoints, Object in_vsadUKnots, Object in_vsaNbUKnots, Object in_vsadVKnots, Object in_vsaNbVKnots, Object in_vsabUClosed, Object in_vsabVClosed, Object in_vsalUDegree, Object in_vsalVDegree, Object in_vsaeUParam, Object in_vsaeVParam, siNurbsFormat in_eNurbsFormat );

### Scripting Syntax

    NurbsSurfaceMesh.Set( Count, UVControlPoints, [NbUControlPoints], [NbVControlPoints], [UKnots], [NbUKnots], [VKnots], [NbVKnots], [UClosed], [VClosed], [UDegree], [VDegree], [UParam], [VParam], [NurbsFormat] );

### Parameters

Parameter | Type | Description
--- | --- | ---
Count | Long | Number of NurbsSurface in the mesh.
UVControlPoints | 1D Array | The control points are stored in a 1 dimensional array. The array must contain the number of U control points, followed by the number of V control points, followed by the sequence of x,y,z,w values e.g. {NbU, NbV, Xo,Yo,Zo,Wo...X(n-1),Y(n-1),Z(n-1),W(n-1)}.
NbUControlPoints | Array of Longs | Specifies the number of U ControlPoints per NurbsCurve.
NbVControlPoints | Array of Longs | Specifies the number of V ControlPoints per NurbsCurve.
UKnots | Array of Doubles | An array of knot values in U direction.
NbUKnots | Array of Longs | Specifies the number of U Knots per NurbsCurve.
VKnots | Array of Doubles | An array of knot values in V direction.
NbVKnots | Array of Longs | Specifies the number of V Knots per NurbsCurve.
UClosed | Array of Boolean values | Specifies whether the nurbs surface is closed in U direction.
VClosed | Array of Boolean values | Specifies whether the nurbs surface is closed in V direction.
UDegree | Array of Longs | Degree of the nurbs surface in U direction.
VDegree | Array of Longs | Degree of the nurbs surface in V direction.
UParam | Array of siKnotParameterization values | The parameterization factor of the nurbs surface in U direction.
VParam | Array of siKnotParameterization values | The parameterization factor of the nurbs surface in V direction.
NurbsFormat | siNurbsFormat | Specifies how the data is formatted. Default Value: siSINurbs

### Examples

#### VBScript Example

    Dim lDegree(2), bClosed(2), eParameterization(2), aControlPoints, aKnots(2), aNbKnots(2), aNbControlVertex(2), lCount

    set oRoot = Application.activeproject.activescene.root

    set oGrid1 = oRoot.AddGeometry("Grid", "NurbsSurface")

    oGrid1.Kinematics.Global.Parameters("posx").value = oG

    set oGrid2 = oRoot.AddGeometry("Grid", "NurbsSurface")

    oGrid2.Kinematics.Global.Parameters("posx").value = oGrid1.Kinematics.Global.Parameters("posx").value - 4.0

    SelectObj oGrid2

    AddToSelection oGrid1

    SIAssembleNurbsMesh , 0.150, False, False, True

    SelectObj "surfmsh"

    set oAssembledSurface = selection(0)

    'We must freeze the object so that Set call succeeds

    FreezeObj oAssembledSurface

    oAssembledSurface.ActivePrimitive.Geometry.Get _

    	siSINurbs, _

    	lCount, _

    	aControlVertex, aNbControlVertex(siUDirection), aNbControlVertex(siVDirection), _

    	aKnots(siUDirection), aNbKnots(siUDirection), aKnots(siVDirection) , aNbKnots(siVDirection), _

    	bClosed(siUDirection),bClosed(siVDirection), _

    	lDegree(siUDirection),lDegree(siVDirection), _

    	eParameterization(siUDirection),eParameterization(siVDirection)

    'Making a tunnel

    l_total = 0

    for k = 0 to lCount - 1

    	for i = 0 to aNbControlVertex(siVDirection)(k) - 1

    		for j = 0 to aNbControlVertex(siUDirection)(k) - 1

    			aControlVertex(1,i, j + l_total) = aControlVertex(1,i,j + l_total) + (aNbControlVertex(siVDirection)(k)/2 - abs( aNbControlVertex(siVDirection)(k)/2 - i))

    		next

    	next

    	l_total = l_total + aNbControlVertex(siUDirection)(k)

    next

    oAssembledSurface.ActivePrimitive.Geometry.Set _

    	lCount, _

    	aControlVertex, aNbControlVertex(siUDirection), aNbControlVertex(siVDirection), _

    	aKnots(siUDirection), aNbKnots(siUDirection), aKnots(siVDirection) , aNbKnots(siVDirection), _

    	bClosed(siUDirection),bClosed(siVDirection), _

    	lDegree(siUDirection),lDegree(siVDirection), _

    	eParameterization(siUDirection),eParameterization(siVDirection), _

    	siSINurbs