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seval.6
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1996-07-16
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642b
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.TH SEVAL
6 "IRIT Version 6.0"
.SH NAME
SEVAL
CtlPtType SEVAL( SurfaceType Srf, NumericType UParam, NumericType VParam )
or
CtlPtType SEVAL( TrimSrfType Srf, NumericType UParam, NumericType VParam )
Evaluates the provided (possibly trimmed) surface Srf at the given
UParam and VParam parameters. Both UParam and VParam
should be contained in the surface parametric domain if Srf is a
Bspline surface, or between zero and one if Srf is a Bezier surface.
The returned control point has the same type as the control points of
Srf.
Example:
CPt = SEVAL( Srf, 0.25, 0.22 );
Evaluates Srf at the parameter values of (0.25, 0.22).