BzrSrfTangent

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

BzrSrfTangent()  

SYNOPSIS

cagd_lib/sbzr_aux.c:267

CagdVecStruct *BzrSrfTangent(CagdSrfStruct *Srf,
                             CagdRType u,
                             CagdRType v,
                             CagdSrfDirType Dir)
 

DESCRIPTION

Evaluates the unit tangent to a surface at a given parametric location u, v) and given direction Dir.  

PARAMETERS:

Srf: Bezier surface to evaluate tangent vector for.

u, v: Parametric location of required unit tangent.

Dir: Direction of tangent vector. Either U or V.  

FUNCTION RETURN VALUE

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

SEE ALSO

CagdSrfTangent, BspSrfTangent,

 

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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