BspSrfMeshNormals

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

BspSrfMeshNormals()  

SYNOPSIS

cagd_lib/sbsp_aux.c:953

CagdVecStruct *BspSrfMeshNormals(CagdSrfStruct *Srf,
                                 int UFineNess,
                                 int VFineNess)
 

DESCRIPTION

Evaluates the unit normals of a surface at a mesh defined by subdividing the parametric space into a grid of size UFineNess by VFineNess. The normals are saved in a linear CagdVecStruct vector which is allocated dynamically. Data is saved u inc. first. This routine is much faster than evaluating normal for each point, individually.  

PARAMETERS:

Srf: To compute normals on a grid of its parametric domain.

UFineNess: U Fineness of imposed grid on Srf's parametric domain.

VFineNess: V Fineness of imposed grid on Srf's parametric domain.  

FUNCTION RETURN VALUE

CagdVecStruct *: An vector of unit normals (u increments first).  

SEE ALSO

CagdSrfNormal, BspSrfNormal, SymbSrfNormalSrf,

 

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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