wkt_parser_compound_new()

LWGEOM* wkt_parser_compound_new

(

LWGEOM *

element

)

Definition at line 724 of file lwin_wkt.c.

References COLLECTIONTYPE, lwalloc(), lwcollection_as_lwgeom(), lwcollection_construct(), LWDEBUG, lwgeom_free(), lwgeom_is_empty(), PARSER_ERROR_INCONTINUOUS, PARSER_ERROR_OTHER, SET_PARSER_ERROR, and SRID_UNKNOWN.

Referenced by yyparse().

{
        LWCOLLECTION *col;
        LWGEOM **geoms;
        static int ngeoms = 1;
        LWDEBUG(4,"entered");

        /* Toss error on null geometry input */
        if( ! geom )
        {
                SET_PARSER_ERROR(PARSER_ERROR_OTHER);
                return NULL;
        }

        /* Elements of a compoundcurve cannot be empty, because */
        /* empty things can't join up and form a ring */
        if ( lwgeom_is_empty(geom) )
        {
                lwgeom_free(geom);
                SET_PARSER_ERROR(PARSER_ERROR_INCONTINUOUS);
                return NULL;
        }

        /* Create our geometry array */
        geoms = lwalloc(sizeof(LWGEOM*) * ngeoms);
        geoms[0] = geom;

        /* Make a new collection */
        col = lwcollection_construct(COLLECTIONTYPE, SRID_UNKNOWN, NULL, ngeoms, geoms);

        /* Return the result. */
        return lwcollection_as_lwgeom(col);
}

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