BspSrfNormal

Section: C Library Functions (3)
Updated: IRIT Version 6.0
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NAME

BspSrfNormal()  

SYNOPSIS

cagd_lib/sbsp_aux.c:894

CagdVecStruct *BspSrfNormal(CagdSrfStruct *Srf, CagdRType u, CagdRType v)
 

DESCRIPTION

Evaluate the unit normal of a surface at a given parametric location. If we fail to compute the normal at given location we retry by moving a tad.  

PARAMETERS:

Srf: Bspline surface to evaluate normal vector for.

u, v: Parametric location of required unit normal.  

FUNCTION RETURN VALUE

CagdVecStruct *: A pointer to a static vector holding the unit normal information.  

SEE ALSO

CagdSrfNormal, BzrSrfNormal, BspSrfMeshNormals, SymbSrfNormalSrf,

 

ORIGIN

(C) Copyright 1989/90-95 Gershon Elber, Technion, IIT


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS:
FUNCTION RETURN VALUE
SEE ALSO
ORIGIN

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