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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