Set (NurbsSurface) *

Description

Sets a complete data description of the NurbsSurface. This is only available from scripted operators; if you use it on an 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.

Scripting Syntax

NurbsSurface.Set( ControlPoints, [UKnots], [VKnots], [UClosed], [VClosed], [UDegree], [VDegree], [UParameterization], [VParameterization], [NurbsFormat] )

C# Syntax

NurbsSurface.Set( Object in_vsaUVControlPoints, Object in_vsaUKnots, Object in_vsaVKnots, Object in_vbUClosed, Object in_vbVClosed, Object in_vlUDegree, Object in_vlVDegree, Object in_veUParam, Object in_veVParam, siNurbsFormat in_eNurbsFormat );

Parameters

Parameter	Type	Description
ControlPoints	3D Array	The control points are stored in a 3-dimensional array. The array is 4 * Number V ControlPoints * Number U ControlPoints
UKnots	Array of Doubles	An array of knot values in U direction.
VKnots	Array of Doubles	An array of knot values in V direction.
UClosed	Boolean	Specifies whether the nurbs surface is closed in U direction.
VClosed	Boolean	Specifies whether the nurbs surface is closed in V direction.
UDegree	Long	Degree of the nurbs surface in U direction.
VDegree	Long	Degree of the nurbs surface in V direction.
UParameterization	siKnotParameterization	The parameterization factor of the nurbs surface in U direction.
VParameterization	siKnotParameterization	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)

set oRoot = Application.activeproject.activescene.root

set oSphere = oRoot.AddGeometry( "Sphere", "NurbsSurface" )
FreezeObj oSphere

oSphere.ActivePrimitive.Geometry.Surfaces(0).Get _
   siSINurbs, _
   aControlVertex, _
   aKnots(siUDirection),aKnots(siVDirection) , _
   bClosed(siUDirection),bClosed(siVDirection), _
   lDegree(siUDirection),lDegree(siVDirection), _
   eParameterization(siUDirection),eParameterization(siVDirection)

for i = lbound(aControlVertex,3) to ubound(aControlVertex,3)
   for j = lbound(aControlVertex,2) to ubound(aControlVertex,2)
          aControlVertex(0,j,i) = aControlVertex(0,j,i) + 1
          aControlVertex(1,j,i) = aControlVertex(1,j,i) + 1
          aControlVertex(2,j,i) = aControlVertex(2,j,i) + 1
          aControlVertex(3,j,i) = aControlVertex(3,j,i) + 1
   next
next

' Create new nurbs surface list from arc data.
   oSphere.ActivePrimitive.Geometry.Surfaces(0).Set _
   aControlVertex, _
   aKnots(siUDirection),aKnots(siVDirection), _
   bClosed(siUDirection),bClosed(siVDirection), _
   lDegree(siUDirection),lDegree(siVDirection), _
   eParameterization(siUDirection),eParameterization(siVDirection), _
   siSINurbs

Autodesk Softimage v7.5