wkt_parser_collection_finalize()

LWGEOM * wkt_parser_collection_finalize	(	int	lwtype,
		LWGEOM *	geom,
		char *	dimensionality
	)

Definition at line 840 of file lwin_wkt.c.

{
        lwflags_t flags = wkt_dimensionality(dimensionality);
        int flagdims = FLAGS_NDIMS(flags);
 
        /* No geometry means it is empty */
        if( ! geom )
        {
                return lwcollection_as_lwgeom(lwcollection_construct_empty(lwtype, SRID_UNKNOWN, FLAGS_GET_Z(flags), FLAGS_GET_M(flags)));
        }
 
        /* There are 'Z' or 'M' tokens in the signature */
        if ( flagdims > 2 )
        {
                LWCOLLECTION *col = lwgeom_as_lwcollection(geom);
                uint32_t i;
 
                for ( i = 0 ; i < col->ngeoms; i++ )
                {
                        LWGEOM *subgeom = col->geoms[i];
                        if ( FLAGS_NDIMS(flags) != FLAGS_NDIMS(subgeom->flags) &&
                                 ! lwgeom_is_empty(subgeom) )
                        {
                                lwgeom_free(geom);
                                SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
                                return NULL;
                        }
 
                        if ( lwtype == COLLECTIONTYPE &&
                           ( (FLAGS_GET_Z(flags) != FLAGS_GET_Z(subgeom->flags)) ||
                             (FLAGS_GET_M(flags) != FLAGS_GET_M(subgeom->flags)) ) &&
                                ! lwgeom_is_empty(subgeom) )
                        {
                                lwgeom_free(geom);
                                SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
                                return NULL;
                        }
                }
 
                /* Harmonize the collection dimensionality */
                if( LW_FAILURE == wkt_parser_set_dims(geom, flags) )
                {
                        lwgeom_free(geom);
                        SET_PARSER_ERROR(PARSER_ERROR_OTHER);
                        return NULL;
                }
        }
 
        /* Set the collection type */
        geom->type = lwtype;
 
        return geom;
}

References COLLECTIONTYPE, LWGEOM::flags, FLAGS_GET_M, FLAGS_GET_Z, FLAGS_NDIMS, LWCOLLECTION::geoms, LW_FAILURE, lwcollection_as_lwgeom(), lwcollection_construct_empty(), lwgeom_as_lwcollection(), lwgeom_free(), lwgeom_is_empty(), LWCOLLECTION::ngeoms, PARSER_ERROR_MIXDIMS, PARSER_ERROR_OTHER, SET_PARSER_ERROR, SRID_UNKNOWN, LWGEOM::type, wkt_dimensionality(), and wkt_parser_set_dims().

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