SymbCrv2DCurvatureSqr
Section: C Library Functions (3)
Updated: IRIT Version 6.0
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NAME
SymbCrv2DCurvatureSqr()
SYNOPSIS
symb_lib/curvatur.c:41
CagdCrvStruct *SymbCrv2DCurvatureSqr(CagdCrvStruct *Crv)
DESCRIPTION
Computes a scalar curve representing the curvature of a planar curve.
The given curve is assumed to be planar and only its x and y coordinates
are considered.
Then the curvature k is equal to
. .. . ..
X Y - Y X
k = -------------
.2 .2 3/2
( X + Y )
Since we cannot represent k because of the square root, we compute and
represent k^2.
PARAMETERS:
Crv: To compute the square of teh curvature field for.
FUNCTION RETURN VALUE
CagdCrvStruct *: The square of the curvature field of Crv.
SEE ALSO
SymbCrv3DCurvatureSqr,
SymbCrv3DRadiusNormal,
,
SymbCrv3DCurvatureNormal,
SymbCrv2DCurvatureSign,
,
SymbCrv2DInflectionPts,
SymbCrv2DExtremCrvtrPts,
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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