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| #include "terrain.h"
#include "utils.h"
int main ()
{
size (1.[0]);
FILE * fp = popen ("xyz2kdt terrain", "w");
for (double x = 0.; x <= 1.1; x += 0.005)
for (double y = 0.; y <= 1.1; y += 0.005)
fprintf (fp, "%g %g %g\n", x, y, sin(3.*pi*x)*cos(2.*pi*y));
pclose (fp);
for (int l = 4; l <= 7; l++) {
init_grid (1 << l);
scalar zb[];
terrain (zb, "terrain", NULL);
scalar e[];
foreach()
e[] = zb[] - sin(3.*pi*x)*cos(2.*pi*y);
if (l == 7)
output_field ({zb, e}, stdout, n = 128);
norm n = normf (e);
stats s = statsf (zb.nt);
fprintf (stderr, "%d %.6f %.6f %.6f %g %g\n", l, n.avg, n.rms, n.max,
s.min, s.max);
}
}
|
