BspSrfTangent
Section: C Library Functions (3)
Updated: IRIT Version 6.0
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NAME
BspSrfTangent()
SYNOPSIS
cagd_lib/sbsp_aux.c:849
CagdVecStruct *BspSrfTangent(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: Bspline 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,
BzrSrfTangent,
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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