lwcollection_from_twkb_state()

static LWCOLLECTION* lwcollection_from_twkb_state ( twkb_parse_state *  s )

static

COLLECTION, MULTIPOINTTYPE, MULTILINETYPE, MULTIPOLYGONTYPE.

Definition at line 452 of file lwin_twkb.c.

References twkb_parse_state::has_idlist, twkb_parse_state::has_m, twkb_parse_state::has_z, twkb_parse_state::is_empty, lwcollection_add_lwgeom(), lwcollection_construct_empty(), LWDEBUG, LWDEBUGF, lwerror(), lwgeom_from_twkb_state(), twkb_parse_state::lwtype, SRID_UNKNOWN, twkb_parse_state_uvarint(), and twkb_parse_state_varint_skip().

Referenced by lwgeom_from_twkb_state().

{
        int ngeoms, i;
        LWGEOM *geom = NULL;
        LWCOLLECTION *col = lwcollection_construct_empty(s->lwtype, SRID_UNKNOWN, s->has_z, s->has_m);

        LWDEBUG(2,"Entering lwcollection_from_twkb_state");

        if ( s->is_empty )
                return col;

        /* Read number of geometries */
        ngeoms = twkb_parse_state_uvarint(s);

        LWDEBUGF(4,"Number of geometries %d",ngeoms);

        /* It has an idlist, we need to skip that */
        if ( s->has_idlist )
        {
                for ( i = 0; i < ngeoms; i++ )
                        twkb_parse_state_varint_skip(s);
        }

        for ( i = 0; i < ngeoms; i++ )
        {
                geom = lwgeom_from_twkb_state(s);
                if ( lwcollection_add_lwgeom(col, geom) == NULL )
                {
                        lwerror("Unable to add geometry (%p) to collection (%p)", geom, col);
                        return NULL;
                }
        }


        return col;
}

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