#include "global.h"
#include "crs.h"     /* CRS HEADER FILE */

int georef_window (struct Cell_head *w1, struct Cell_head *w2, int order)
{
    double n,e;

    CRS_georef (w1->west, w1->north, &e, &n, E12, N12, order);
    w2->north = w2->south = n;
    w2->west  = w2->east  = e;

    CRS_georef (w1->east, w1->north, &e, &n, E12, N12, order);
    if (n > w2->north) w2->north = n;
    if (n < w2->south) w2->south = n;
    if (e > w2->east ) w2->east  = e;
    if (e < w2->west ) w2->west  = e;

    CRS_georef (w1->west, w1->south, &e, &n, E12, N12, order);
    if (n > w2->north) w2->north = n;
    if (n < w2->south) w2->south = n;
    if (e > w2->east ) w2->east  = e;
    if (e < w2->west ) w2->west  = e;

    CRS_georef (w1->east, w1->south, &e, &n, E12, N12, order);
    if (n > w2->north) w2->north = n;
    if (n < w2->south) w2->south = n;
    if (e > w2->east ) w2->east  = e;
    if (e < w2->west ) w2->west  = e;

    w2->ns_res = (w2->north - w2->south) / w1->rows;
    w2->ew_res = (w2->east  - w2->west ) / w1->cols;

fprintf(stderr, "Region N=%f S=%f E=%f W=%f\n", w2->north, w2->south, w2->east, w2->west);
fprintf(stderr, "Resolution EW=%f NS=%f\n", w2->ew_res, w2->ns_res);

    return 0;
}