BOX2D_in()

Datum BOX2D_in

(

PG_FUNCTION_ARGS

)

Definition at line 56 of file lwgeom_box.c.

{
        char *str = PG_GETARG_CSTRING(0);
        int nitems;
        double tmp;
        GBOX box;
        int i;
 
        gbox_init(&box);
 
        for(i = 0; str[i]; i++) {
          str[i] = tolower(str[i]);
        }
 
        nitems = sscanf(str,"box(%lf %lf,%lf %lf)", &box.xmin, &box.ymin, &box.xmax, &box.ymax);
        if (nitems != 4)
        {
                elog(ERROR,"box2d parser - couldn't parse.  It should look like: BOX(xmin ymin,xmax ymax)");
                PG_RETURN_NULL();
        }
 
        if (box.xmin > box.xmax)
        {
                tmp = box.xmin;
                box.xmin = box.xmax;
                box.xmax = tmp;
        }
        if (box.ymin > box.ymax)
        {
                tmp = box.ymin;
                box.ymin = box.ymax;
                box.ymax = tmp;
        }
        PG_RETURN_POINTER(gbox_copy(&box));
}

References gbox_copy(), gbox_init(), str, GBOX::xmax, GBOX::xmin, GBOX::ymax, and GBOX::ymin.

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