BspCrvDerive
Section: C Library Functions (3)
Updated: IRIT Version 6.0
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NAME
BspCrvDerive()
SYNOPSIS
cagd_lib/cbsp_aux.c:629
CagdCrvStruct *BspCrvDerive(CagdCrvStruct *Crv)
DESCRIPTION
Returns a new curve, equal to the given curve, differentiated once.
Let old control polygon be P(i), i = 0 to k-1, and Q(i) be new one then:
Q(i) = (k - 1) * (P(i+1) - P(i)) / (Kv(i + k) - Kv(i + 1)), i = 0 to k-2.
PARAMETERS:
Crv: To differentiate.
FUNCTION RETURN VALUE
CagdCrvStruct *: Differentiated curve.
SEE ALSO
BzrCrvDerive,
CagdCrvDerive,
BzrCrvDeriveRational,
BspCrvDeriveRational,
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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