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
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- ORIGIN
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