lwcollection_from_wkb_state()

static LWCOLLECTION* lwcollection_from_wkb_state ( wkb_parse_state *  s )

static

POLYHEDRALSURFACETYPE.

COLLECTION, MULTIPOINTTYPE, MULTILINETYPE, MULTIPOLYGONTYPE, COMPOUNDTYPE, MULTICURVETYPE, MULTISURFACETYPE, TINTYPE

Definition at line 685 of file lwin_wkb.c.

{
        uint32_t ngeoms = integer_from_wkb_state(s);
        if (s->error)
                return NULL;
        LWCOLLECTION *col = lwcollection_construct_empty(s->lwtype, s->srid, s->has_z, s->has_m);
        LWGEOM *geom = NULL;
        uint32_t i;
 
        LWDEBUGF(4,"Collection has %d components", ngeoms);
 
        /* Empty collection? */
        if ( ngeoms == 0 )
                return col;
 
        /* Be strict in polyhedral surface closures */
        if ( s->lwtype == POLYHEDRALSURFACETYPE )
                s->check |= LW_PARSER_CHECK_ZCLOSURE;
 
        s->depth++;
        if (s->depth >= LW_PARSER_MAX_DEPTH)
        {
                lwcollection_free(col);
                lwerror("Geometry has too many chained collections");
                return NULL;
        }
        for ( i = 0; i < ngeoms; i++ )
        {
                geom = lwgeom_from_wkb_state(s);
                if ( lwcollection_add_lwgeom(col, geom) == NULL )
                {
                        lwgeom_free(geom);
                        lwgeom_free((LWGEOM *)col);
                        lwerror("Unable to add geometry (%p) to collection (%p)", geom, col);
                        return NULL;
                }
        }
        s->depth--;
 
        return col;
}

References integer_from_wkb_state(), LW_PARSER_CHECK_ZCLOSURE, LW_PARSER_MAX_DEPTH, lwcollection_add_lwgeom(), lwcollection_construct_empty(), lwcollection_free(), LWDEBUGF, lwerror(), lwgeom_free(), lwgeom_from_wkb_state(), POLYHEDRALSURFACETYPE, and s.

Referenced by lwgeom_from_wkb_state().

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