VS:EvaluateNurbsSurfacePointAndNormal

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Description

Determines the point and normal on the NURBS surface at the given u/v value.

FUNCTION EvaluateNurbsSurfacePointAndNormal(
                       surfaceHandle                 :HANDLE;
                       u                             :REAL;
                       v                             :REAL;
                       VAR pointX,pointY,pointZ      :REAL;
                       VAR normalX,normalY,normalZ   :REAL) : BOOLEAN;

def vs.EvaluateNurbsSurfacePointAndNormal(surfaceHandle, u, v):
    return (BOOLEAN, point, normal)

Parameters

surfaceHandle		HANDLE		Handle to NURBS surface being evaluated
u		REAL		parameter value of the point on the surface being evaluated
v		REAL		parameter value of the point on the surface being evaluated
point		REAL		Coordinate of the point on the surface
normal		REAL		normal vector of the surface computed at the point

Version

Availability: from VectorWorks10.0