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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