avgSurfacePoints

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The 'avgSurfacePoints' node is used to compute a weighted average in both position and normal of a given set of NURBS surface points.

The i-th point to be used in the averaging process is given by specifying the NURBS surface at the attribute 'is[i]', the parameter space location on the surface 'is[i]' at attributes ('u[i]', 'v[i]') and any associated weight with the point at 'w[i]'.

The attribute 'top' can be used to indicate that the specified (u,v) coordinates of the points are normalized. This may be used if the parameter space domain of the NURBS surfaces are not known in advance.

The computed postion and normal can be obtained using the output attributes 'r.p' and 'r.n' respectively.

Related nodes

ffBlendSrfObsolete, roundConstantRadius, extendSurface, offsetCos, alignSurface, bevel, insertKnotSurface

Attributes (14)

inputSurfaces, normal, normalX, normalY, normalZ, parameterU, parameterV, position, positionX, positionY, positionZ, result, turnOnPercentage, weight

Long name (short name)	Type	Default	Flags
inputSurfaces (is)	nurbsSurface	NULL
The input surfaces
weight (wt)	double	0.5
The weighting factor for each point
turnOnPercentage (top)	bool	false
Whether the parameter is normalized (0,1) or not
parameterU (u)	double	0.0
The U parameter value on surface
parameterV (v)	double	0.0
The V parameter value on surface
result (r)	compound	n/a
All results - container holding position, normal
position (p) double3 0.0, 0.0, 0.0 Computed position (in result compound) positionX (px) distance (double) 0.0cm Computed X value of position positionY (py) distance (double) 0.0cm Computed Y value of position positionZ (pz) distance (double) 0.0cm Computed Z value of position
normal (n) double3 0.0, 0.0, 1.0 Computed normal (in result compound) normalX (nx) distance (double) 0.0cm Computed X value of normal normalY (ny) distance (double) 0.0cm Computed Y value of normal normalZ (nz) distance (double) 1.0cm Computed Z value of normal