The NurbsSurface object gives access to the X3DObject's NurbsSurface geometry.

EvaluateNormalizedPosition	EvaluateNormalizedPosition2	EvaluatePosition	EvaluatePosition2
Get	Get2	GetNormalizedUVFromUV	GetNormalizedUVFromUV2
GetTrim	GetTrim2	GetUVFromNormalizedUV	GetUVFromNormalizedUV2
IsClassOf	IsEqualTo	Navigate	Set

Application	Categories	ControlPoints	FullName
Help	Index	Knots	Name
NbPoints	NestedObjects	NurbsSamples	Origin
OriginPath	Parent	Points	Samples
Segments	SubComponent	TrimCount	Type
UKnots	VKnots

VBScript Example

set oObject = ActiveSceneRoot.AddGeometry("Sphere","NurbsSurface")
set oNurbsSurfaceMesh = oObject.ActivePrimitive.Geometry
set oNurbsSurface = oNurbsSurfaceMesh.Surfaces(0)

X3DObject.AddNurbsSurface NurbsSurfaceMesh.Surfaces NurbsSurfaceMesh Geometry Geometry.Facets ControlPoint NurbsSample