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/*****************************************************************
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eval_vecteur.c Type:Func
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Unicite d un vecteur
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Date de creation : Wed Jul 9 10:49:44 1997
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Derniere version : Wed Jul 9 10:49:44 1997
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Vincent FRANCOIS
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*****************************************************************/
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/**************************/
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/* include */
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#include <stdio.h>
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#include <math.h>
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#include "struct.h"
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#include "const.h"
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#include "prototype.h"
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/**************************/
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/* variables globales */
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/**************************/
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/* programme principal */
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void eval_vecteur(float *vec)
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{
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float dir[4];
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dir[0]=(vec[0]);
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dir[1]=(vec[1]);
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dir[2]=(vec[2]);
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NORME(dir);
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if (dir[0]<(-0.0001))
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{
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dir[0]=(-dir[0]);
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dir[1]=(-dir[1]);
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dir[2]=(-dir[2]);
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}
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if (EGAL(dir[0],0.,0.0001))
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{
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if (dir[1]<(-0.0001))
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{
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dir[1]=(-dir[1]);
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dir[2]=(-dir[2]);
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}
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if (EGAL(dir[1],0.,0.0001))
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if (dir[2]<(-0.0001))
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dir[2]=(-dir[2]);
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}
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(vec[0])=dir[0];
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(vec[1])=dir[1];
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(vec[2])=dir[2];
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}
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