SymbSrfMeanEvolute

Section: C Library Functions (3)
Updated: IRIT Version 6.0
Index Return to Main Contents
 

NAME

SymbSrfMeanEvolute()  

SYNOPSIS

symb_lib/curvatur.c:770

CagdSrfStruct *SymbSrfMeanEvolute(CagdSrfStruct *Srf)
 

DESCRIPTION

Computes an "evolute surface" to a given surface using twice the Mean curvature as magnitude.


                       1                             |G|
 E(u, v) = n(u, v) --------- = n(u, v) ---------------------------------
                   2 H(u, v)           ( G11 L22 + G22 L11 - 2 G12 L12 )

Becuase H(u,v) also has n(u,v) we can use the nonnormalized surface normal to compute E(u, v), which is therefore computable and representable.  

PARAMETERS:

Srf: Surface to compute mean evolute.  

FUNCTION RETURN VALUE

CagdSrfStruct *: A surface representing the mean evolute surface.  

SEE ALSO

SymbSrfFff, SymbSrfSff, SymbSrf2DDeterminant, SymbSrfGaussCurvature, , SymbSrfMeanCurvatureSqr, SymbSrfIsoFocalSrf, SymbSrfCurvatureUpperBound, , SymbSrfIsoDirNormalCurvatureBound,

 

ORIGIN

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS:
FUNCTION RETURN VALUE
SEE ALSO
ORIGIN

This document was created by man2html, using the manual pages.
Time: 07:26:59 GMT, July 20, 2024