SymbCrvExtremSet

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

SymbCrvExtremSet()  

SYNOPSIS

symb_lib/symbzero.c:69

CagdPtStruct *SymbCrvExtremSet(CagdCrvStruct *Crv, int Axis, CagdRType Epsilon)
 

DESCRIPTION

Computes the extremum set of a given curve, in given axis (1-3 for X-Z). Returned is a list of the extreme set points holding the parameter values at Pt[0] of each point. One could compute the derivative of the curve and find its zero set. However, for rational curves, this will double the degree and slow down the computation considerably.  

PARAMETERS:

Crv: To compute its extremum set.

Axis: The axis of Crv to compute extremum set for.

Epsilon: Tolerance control.  

FUNCTION RETURN VALUE

CagdPtStruct *: List of parameter values form which Crv has an extremum value in axis Axis.

 

ORIGIN

(C) Copyright 1989/90-95 Gershon Elber, Technion, IIT


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS:
FUNCTION RETURN VALUE
ORIGIN

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