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/*
* INTER.C - driver to study the interpolation routines
*
* Source Version: 2.0
* Software Release #92-0043
*
*/
#include "cpyright.h"
#include "pml.h"
int
Ximax,
XxY,
Yimax;
REAL
*rtorx,
*rtory,
*rtovx,
*rtovy,
*rx,
*ry,
*vtorx,
*vtory,
*vx,
*vy;
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
main(argc, argv)
int argc;
char **argv;
{int i, n;
long d;
FILE *fp, *out;
char s[MAXLINE], *token, *t;
/* interupt handler */
SIGNAL(SIGINT, SIG_DFL);
fp = fopen("remap.asc", "r");
if (fp == NULL)
{printf("CAN'T OPEN REMAP.ASC\n");
exit(1);};
/* get in the number of logical voltages */
fgets(s, MAXLINE, fp);
XxY = atoi(s);
Ximax = Yimax = sqrt(XxY);
vtorx = FMAKE_N(REAL, XxY, "INTER.C:vtorx");
vtory = FMAKE_N(REAL, XxY, "INTER.C:vtory");
vx = FMAKE_N(REAL, XxY, "INTER.C:vx");
vy = FMAKE_N(REAL, XxY, "INTER.C:vy");
/* get in the coordinates from the logical voltages */
for (i = 0; i < XxY; i++)
{fgets(s, MAXLINE, fp);
token = SC_strtok(s, " ", t);
vtorx[i] = ATOF(token);
token = SC_strtok(NULL, " ", t);
vtory[i] = ATOF(token);};
fgets(s, MAXLINE, fp);
/* get in the logical voltages */
for (i = 0; i < XxY; i++)
{fgets(s, MAXLINE, fp);
token = SC_strtok(s, " ", t);
vx[i] = ATOF(token);
token = SC_strtok(NULL, " ", t);
vy[i] = ATOF(token);};
fgets(s, MAXLINE, fp);
/* get in the number of interpolation points */
fgets(s, MAXLINE, fp);
n = atoi(s);
rx = FMAKE_N(REAL, n, "INTER.C:rx");
ry = FMAKE_N(REAL, n, "INTER.C:ry");
/* get in the list of interpolation points */
for (i = 0; i < n; i++)
{fgets(s, MAXLINE, fp);
token = SC_strtok(s, " ", t);
rx[i] = ATOF(token);
token = SC_strtok(NULL, " ", t);
ry[i] = ATOF(token);};
fclose(fp);
compute_rtov(Ximax, Yimax, n);
if ((out = fopen("foo.bar", "w")) == NULL)
{printf("CAN'T OPEN FOO.BAR\n");
exit(1);};
dump("LOGICAL VOLTAGES - V", vx, vy, XxY, out);
dump("R(V)", vtorx, vtory, XxY, out);
dump("INTERPOLATION POINTS - Ri", rx, ry, n, out);
dump("V(Ri)", rtovx, rtovy, n, out);
dump("R(Ri)", rtorx, rtory, n, out);
fclose(out);
return(0);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* COMPUTE_RTOV - interpolate the mapping from voltages to positions
* - into one from positions to voltages
*/
compute_rtov(kmax, lmax, ni)
int kmax, lmax, ni;
{int i, ix, iy, fsw, fsh;
REAL **vals, **pts, **fncs;
PM_lagrangian_mesh *grid;
grid = FMAKE(PM_lagrangian_mesh, "COMPUTE_RTOV:grid");
grid->x = vtorx;
grid->y = vtory;
grid->kmax = kmax;
grid->lmax = lmax;
pts = FMAKE_N(REAL *, 2, "COMPUTE_RTOV:pts");
pts[0] = rx;
pts[1] = ry;
fncs = FMAKE_N(REAL *, 4, "COMPUTE_RTOV:fncs");
fncs[0] = vx;
fncs[1] = vy;
fncs[2] = vtorx;
fncs[3] = vtory;
vals = PM_interpol(grid, pts, ni, fncs, 4);
rtovx = vals[0];
rtovy = vals[1];
rtorx = vals[2];
rtory = vals[3];
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* DUMP - make an ASCII dump of a map */
dump(s, px, py, n, fp)
char *s;
REAL *px, *py;
int n;
FILE *fp;
{int i, j;
fprintf(fp, "\n\n%s\n\n", s);
for (i = 0; i < n; i++)
fprintf(fp, "(%6.3f, %6.3f) ", *px++, *py++);
fprintf(fp, "\n\n");
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
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