NurbsSurfaceInterpolator problem

Hi !

http://www.web3d.org/x3d/specificati...ceInterpolator

reads

| 27.4.10 NurbsSurfaceInterpolator
|
| NurbsSurfaceInterpolator : X3DChildNode {
| SFVec2f [in] set_fraction (-∞,∞)
| SFNode [in,out] controlPoint [] [X3DCoordinateNode]
| SFNode [in,out] metadata NULL [X3DMetadataObject]
| MFDouble [in,out] weight [] (-∞,∞)
| SFVec3f [out] position_changed
| SFVec3f [out] normal_changed
| SFInt32 [] uDimension 0 [0,∞)
| MFDouble [] uKnot [] (-∞,∞)
| SFInt32 [] uOrder 3 [2,∞)
| SFInt32 [] vDimension 0 [0,∞)
| MFDouble [] vKnot [] (-∞,∞)
| SFInt32 [] vOrder 3 [2,∞)
| }
|
| NurbsSurfaceInterpolator describes a 3D NURBS surface as specified in
| 27.4.7 NurbsPatchSurface.

| Sending a set_fraction input computes a 3D position on the surface for the
| given u and v coordinates, from which the position in the surface shall be
| then sent by value_changed.

Do you see any "given u and v coordinates" ? I only see a 2D "set_fraction"
eventIn...

Do you see any that could be "sent by value_changed" ? I only see a
"position_changed" eventOut...

so long
MUFTI
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