| 1 |
|
1 |
/*****************************************************************
|
| 2 |
|
|
|
| 3 |
|
|
eval_fdn2b_eps.c Type:Func
|
| 4 |
|
|
|
| 5 |
|
|
Calcul de la densite en un point d une surface non plane
|
| 6 |
|
|
|
| 7 |
|
|
Date de creation : Wed May 14 17:53:55 1997
|
| 8 |
|
|
|
| 9 |
|
|
Derniere version : Tue Jul 29 11:20:33 1997
|
| 10 |
|
|
|
| 11 |
|
|
|
| 12 |
|
|
|
| 13 |
|
|
|
| 14 |
|
|
|
| 15 |
|
|
|
| 16 |
|
|
|
| 17 |
|
|
|
| 18 |
|
|
Vincent FRANCOIS
|
| 19 |
|
|
|
| 20 |
|
|
*****************************************************************/
|
| 21 |
|
|
|
| 22 |
|
|
|
| 23 |
|
|
|
| 24 |
|
|
|
| 25 |
|
|
|
| 26 |
|
|
/**************************/
|
| 27 |
|
|
/* include */
|
| 28 |
|
|
#include <stdio.h>
|
| 29 |
|
|
#include <string.h>
|
| 30 |
|
|
#include <math.h>
|
| 31 |
|
|
#include <stdlib.h>
|
| 32 |
|
|
#include "const.h"
|
| 33 |
|
|
#include "memoire.h"
|
| 34 |
|
|
#include "struct.h"
|
| 35 |
|
|
#include "prototype.h"
|
| 36 |
|
|
|
| 37 |
|
|
|
| 38 |
|
|
/**************************/
|
| 39 |
|
|
/* variables globales */
|
| 40 |
|
|
extern struct environnement env;
|
| 41 |
|
|
extern struct s_mesh *mesh;
|
| 42 |
|
|
extern struct s_acis *acis;
|
| 43 |
|
|
|
| 44 |
|
|
|
| 45 |
|
|
|
| 46 |
|
|
/**************************/
|
| 47 |
|
|
/* programme principal */
|
| 48 |
|
|
|
| 49 |
|
|
float eval_fdn2_eps(struct s_face *face,float u,float v)
|
| 50 |
|
|
{
|
| 51 |
|
|
float x,y,z,du,dv,de,dg;
|
| 52 |
|
|
float e,g,dens,xuu[4],xuv[4],xvv[4];
|
| 53 |
|
|
float xu[4],xv[4];
|
| 54 |
|
|
float m1[4],m2[4],m3[4];
|
| 55 |
|
|
|
| 56 |
|
|
du=0.;dv=0.;
|
| 57 |
|
|
if (strcmp(acis->type_entite[face->surface],"plane-surface")==0)
|
| 58 |
|
|
{
|
| 59 |
|
|
return(env.dens*10000.);
|
| 60 |
|
|
}
|
| 61 |
|
|
e=eval_face(face,&u,&v,E,&x,&y,&z,du,dv);
|
| 62 |
|
|
g=eval_face(face,&u,&v,G,&x,&y,&z,du,dv);
|
| 63 |
|
|
de=eval_face(face,&u,&v,EU,&x,&y,&z,du,dv);
|
| 64 |
|
|
dg=eval_face(face,&u,&v,GV,&x,&y,&z,du,dv);
|
| 65 |
|
|
eval_face(face,&u,&v,DUU,&xuu[0],&xuu[1],&xuu[2],du,dv);
|
| 66 |
|
|
eval_face(face,&u,&v,DUV,&xuv[0],&xuv[1],&xuv[2],du,dv);
|
| 67 |
|
|
eval_face(face,&u,&v,DVV,&xvv[0],&xvv[1],&xvv[2],du,dv);
|
| 68 |
|
|
eval_face(face,&u,&v,DU,&xu[0],&xu[1],&xu[2],du,dv);
|
| 69 |
|
|
eval_face(face,&u,&v,DV,&xv[0],&xv[1],&xv[2],du,dv);
|
| 70 |
|
|
m1[0]=(float)(xuu[0]/e-0.5*xu[0]*de/e/e);
|
| 71 |
|
|
m1[1]=(float)(xuu[1]/e-0.5*xu[1]*de/e/e);
|
| 72 |
|
|
m1[2]=(float)(xuu[2]/e-0.5*xu[2]*de/e/e);
|
| 73 |
|
|
m2[0]=(float)(xuv[0]/sqrt((double)(e*g)));
|
| 74 |
|
|
m2[1]=(float)(xuv[1]/sqrt((double)(e*g)));
|
| 75 |
|
|
m2[2]=(float)(xuv[2]/sqrt((double)(e*g)));
|
| 76 |
|
|
m3[0]=(float)(xvv[0]/g-0.5*xv[0]*dg/g/g);
|
| 77 |
|
|
m3[1]=(float)(xvv[1]/g-0.5*xv[1]*dg/g/g);
|
| 78 |
|
|
m3[2]=(float)(xvv[2]/g-0.5*xv[2]*dg/g/g);
|
| 79 |
|
|
NORME(m1);
|
| 80 |
|
|
NORME(m2);
|
| 81 |
|
|
NORME(m3);
|
| 82 |
|
|
if (env.relatif==0) dens=(float)sqrt((double)(4.5*env.epsilon/(m1[3]+2*m2[3]+m3[3])));
|
| 83 |
|
|
else dens=(float)sqrt((double)(4.5*env.epsilon/(m1[3]+2*m2[3]+m3[3])/(m1[3]+2*m2[3]+m3[3])));
|
| 84 |
|
|
|
| 85 |
|
|
return(dens);
|
| 86 |
|
|
}
|
