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/*****************************************************************
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eval_fdn2b.c Type:Func
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Calcul de la densite en un point d une surface non plane
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Date de creation : Wed May 14 17:53:55 1997
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Derniere version : Tue Jul 29 11:20:33 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 <string.h>
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#include <math.h>
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#include <stdlib.h>
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#include "const.h"
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#include "memoire.h"
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#include "struct.h"
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#include "prototype.h"
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/**************************/
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/* variables globales */
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extern struct environnement env;
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extern struct s_mesh *mesh;
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extern struct s_acis *acis;
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/**************************/
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/* programme principal */
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float eval_fdn2b(struct s_face *face,float u,float v,int type)
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{
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struct s_face *face_tmp;
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float coord[3];
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float dens,dens1,dis,par[4];
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int i;
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dens=eval_fdn2_eps(face,u,v);
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eval_face(face,&u,&v,FONCTION,&coord[0],&coord[1],&coord[2],0.,0.);
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for (i=0;i<acis->nb_face;i++)
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{
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if (face->rap_face[i]==0)
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{
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face_tmp=ADRESSE(i,face,acis->);
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eval_mindis_face_face(face,face_tmp,&dis,par);
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if ((dis<4.*dens)&&(face!=face_tmp))
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{
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face->rap_face[i]=1;
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face_tmp->rap_face[face->num_face]=1;
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}
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else
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{
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face->rap_face[i]=-1;
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face_tmp->rap_face[face->num_face]=-1;
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}
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}
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if (face->rap_face[i]==1)
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{
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face_tmp=ADRESSE(i,face,acis->);
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eval_mindis_face(face_tmp,coord,&dis,par);
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dens1=eval_fdn2_eps(face_tmp,par[0],par[1]);
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MINI(dens,dens,dens1+dis/4.);
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}
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}
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if ((dens>env.dens)&&(type==TOTAL))
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dens=eval_fdn2a(face,u,v);
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if ((dens>env.dens)&&(type==LIMITE))
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dens=env.dens;
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return(dens);
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}
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