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o_min_loc.c
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Wed, Jan 1, 00:50

o_min_loc.c
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#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<fonction.h>
#include<constant.h>
#include<dimension.h>
#include<structure.h>
/****************************************************************/
/* nom: o_min_loc */
/* auteur: Jean-Paul Kneib */
/* date: 10/02/92 */
/* place: Toulouse */
/****************************************************************/
double o_min_loc(double y0)
{
extern struct g_mode M;
extern struct g_grille G;
extern struct g_image I;
extern struct ipot ip;
extern struct pot lens[]; //,prec[];
extern double excu[][NPAMAX];
extern double excd[][NPAMAX];
extern struct galaxie multi[][NIMAX];
extern struct z_lim zlim[];
extern double x1max, x2max, y1max, y2max;
extern int ipmax, ilsmax, izmax;
extern int imapmax, jmapmax;
extern double **map_p;
extern double **tmp_p;
double xmin, ymin;
double x0;
register int i, j;
if (lens[0].type != 10)
{
if (ip.extend == 1)
{
NPRINTF(stderr, "\n\t\textend 1\n");
ip.extend = 2;
for (i = 0; i < G.no_lens; i++)
for (j = 0; j < ip.pmax; j++)
{
excu[i][j] *= 1.5;
excd[i][j] *= 1.5;
};
for (i = 0; i < I.nzlim; i++)
{
zlim[i].excu *= 1.5;
zlim[i].excd *= 1.5;
};
return(y0);
}
if (ip.extend == 2)
{
NPRINTF(stderr, "\n\t\textend 2\n");
ip.extend = 0;
for (i = 0; i < G.no_lens; i++)
for (j = 0; j < ip.pmax; j++)
{
excu[i][j] *= 1.5;
excd[i][j] *= 1.5;
};
for (i = 0; i < I.nzlim; i++)
{
zlim[i].excu *= 1.5;
zlim[i].excd *= 1.5;
};
return(y0);
}
}
/* retrieve the value of x0 */
if (ipmax >= 0)
x0 = o_get_lens(ilsmax, ipmax);
else if (imapmax >= 0)
x0 = lens[G.nlens-1].b0 = 0.;
else if (izmax >= 0)
{
x0 = multi[izmax][0].dr;
NPRINTF(stderr, "a(%d) z:[%lf] [%lf]:%lf [%lf]%lf\n",
izmax, x0, x1max, y1max, x2max, y2max);
}
else
{
fprintf(stderr, "ERROR: arguments confusion\n");
exit(-1);
};
/* find the minimum with min_parabol */
if (((x0 > x1max + 0.001) && (x0 < x2max - 0.001)) || ((x0 < x1max - 0.001) && (x0 > x2max + .001)))
{
xmin = min_parabol(x0, y0, x1max, y1max, x2max, y2max);
}
else
{
NPRINTF(stderr,
"WARNING: x0:%lf not between x1:%lf-x2:%lf l:%d p:%d z:%d\n",
x0, x1max, x2max, ilsmax, ipmax, izmax);
xmin = (x1max + x2max) / 2.;
};
if (ipmax >= 0)
{
o_set_lens(ilsmax, ipmax, xmin);
excu[ilsmax][ipmax] *= .6;
excd[ilsmax][ipmax] *= .6;
}
else if (imapmax >= 0)
{
tmp_p = map_p;
add_pm(map_p, G.nx, G.ny, imapmax, jmapmax, xmin);
G.exc *= .8;
}
else if (izmax >= 0)
{
multi[izmax][0].dr = xmin;
zlim[izmax].excu *= .6;
zlim[izmax].excd *= .6;
};
ymin = o_chi();
if (ymin < y0)
return(ymin);
else
{
if (ipmax >= 0)
o_set_lens(ilsmax, ipmax, x0);
else if (imapmax >= 0)
map_p = tmp_p;
else if (izmax >= 0)
multi[izmax][0].dr = x0;
return(y0);
};
}

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