#include <stdio.h>
extern double *c_natgridd(int, double [], double [], double [],
int, int, double [], double [], int *);
extern void drwsrfc (int, int, float *, float *, float *,
float, float, float, int *);
#define NUMIN 6
#define NUMXOUT 21
#define NUMYOUT 21
main()
{
int i, j, ier, iert, *iwk;
double x[] = {0.00, 1.00, 0.00, 1.00, 0.40, 0.75},
y[] = {0.00, 0.00, 1.00, 1.00, 0.20, 0.65},
z[] = {0.00, 0.00, 0.00, 0.00, 1.25, 0.80};
double *out, xo[NUMXOUT], yo[NUMYOUT], xc, yc;
float outd[NUMXOUT * NUMYOUT], xp[NUMXOUT], yp[NUMYOUT];
iwk = (int *) calloc(2*NUMXOUT*NUMYOUT,sizeof(float));
xc = 1./(NUMXOUT-1.);
for (i = 0 ; i < NUMXOUT ; i++) {
xo[i] = i * xc;
}
yc = 1./(NUMYOUT-1.);
for (j = 0 ; j < NUMYOUT ; j++) {
yo[j] = j * yc;
}
out = c_natgridd(NUMIN, x, y, z, NUMXOUT, NUMYOUT, xo, yo, &ier);
if (ier != 0) {
printf (" Error return from c_natgrids = %d\n",ier);
}
for (i = 0; i < NUMXOUT; i++) {
xp[i] = xo[i];
for (j = 0; j < NUMYOUT; j++) {
yp[j] = yo[j];
outd[i*NUMYOUT+j] = (float) out[i*NUMYOUT+j];
}
}
/*
* Draw the surface plot.
*/
drwsrfc (NUMXOUT, NUMYOUT, xp, yp, outd, 15.,-25.,90., iwk);
}
home |
contents |
defs |
params |
procedures |
exmpls |
index