gserialized2_read_gbox_p()

int gserialized2_read_gbox_p ( const GSERIALIZED *  g, GBOX *  gbox  )

static

Definition at line 314 of file gserialized2.c.

{
        /* Null input! */
        if (!(g && gbox)) return LW_FAILURE;
 
        uint8_t gflags = g->gflags;
 
        /* Initialize the flags on the box */
        gbox->flags = gserialized2_get_lwflags(g);
 
        /* Has pre-calculated box */
        if (G2FLAGS_GET_BBOX(gflags))
        {
                int i = 0;
                const float *fbox = gserialized2_get_float_box_p(g, NULL);
                gbox->xmin = fbox[i++];
                gbox->xmax = fbox[i++];
                gbox->ymin = fbox[i++];
                gbox->ymax = fbox[i++];
 
                /* Geodetic? Read next dimension (geocentric Z) and return */
                if (G2FLAGS_GET_GEODETIC(gflags))
                {
                        gbox->zmin = fbox[i++];
                        gbox->zmax = fbox[i++];
                        return LW_SUCCESS;
                }
                /* Cartesian? Read extra dimensions (if there) and return */
                if (G2FLAGS_GET_Z(gflags))
                {
                        gbox->zmin = fbox[i++];
                        gbox->zmax = fbox[i++];
                }
                if (G2FLAGS_GET_M(gflags))
                {
                        gbox->mmin = fbox[i++];
                        gbox->mmax = fbox[i++];
                }
                return LW_SUCCESS;
        }
        return LW_FAILURE;
}

References GBOX::flags, G2FLAGS_GET_BBOX, G2FLAGS_GET_GEODETIC, G2FLAGS_GET_M, G2FLAGS_GET_Z, GSERIALIZED::gflags, gserialized2_get_float_box_p(), gserialized2_get_lwflags(), LW_FAILURE, LW_SUCCESS, GBOX::mmax, GBOX::mmin, GBOX::xmax, GBOX::xmin, GBOX::ymax, GBOX::ymin, GBOX::zmax, and GBOX::zmin.

Referenced by gserialized2_fast_gbox_p(), gserialized2_get_gbox_p(), and lwgeom_from_gserialized2().

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