lwcollection_calculate_gbox_cartesian()

static int lwcollection_calculate_gbox_cartesian ( LWCOLLECTION *  coll, GBOX *  gbox  )

static

Definition at line 648 of file g_box.c.

References GBOX::flags, LWCOLLECTION::flags, gbox_duplicate(), gbox_merge(), LWCOLLECTION::geoms, LW_FAILURE, LW_FALSE, LW_SUCCESS, LW_TRUE, lwgeom_calculate_gbox_cartesian(), and LWCOLLECTION::ngeoms.

Referenced by lwgeom_calculate_gbox_cartesian().

{
        GBOX subbox;
        int i;
        int result = LW_FAILURE;
        int first = LW_TRUE;
        assert(coll);
        if ( (coll->ngeoms == 0) || !gbox)
                return LW_FAILURE;

        subbox.flags = coll->flags;

        for ( i = 0; i < coll->ngeoms; i++ )
        {
                if ( lwgeom_calculate_gbox_cartesian((LWGEOM*)(coll->geoms[i]), &subbox) == LW_SUCCESS )
                {
                        /* Keep a copy of the sub-bounding box for later
                        if ( coll->geoms[i]->bbox )
                                lwfree(coll->geoms[i]->bbox);
                        coll->geoms[i]->bbox = gbox_copy(&subbox); */
                        if ( first )
                        {
                                gbox_duplicate(&subbox, gbox);
                                first = LW_FALSE;
                        }
                        else
                        {
                                gbox_merge(&subbox, gbox);
                        }
                        result = LW_SUCCESS;
                }
        }
        return result;
}

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