LWGEOM_asEWKT()

Datum LWGEOM_asEWKT

(

PG_FUNCTION_ARGS

)

Definition at line 2344 of file lwgeom_functions_basic.c.

{
        GSERIALIZED *geom;
        LWGEOM *lwgeom;
        char *wkt;
        size_t wkt_size;
        text *result;
 
        POSTGIS_DEBUG(2, "LWGEOM_asEWKT called.");
 
        geom = PG_GETARG_GSERIALIZED_P(0);
        lwgeom = lwgeom_from_gserialized(geom);
 
        /* Write to WKT and free the geometry */
        wkt = lwgeom_to_wkt(lwgeom, WKT_EXTENDED, DBL_DIG, &wkt_size);
        lwgeom_free(lwgeom);
 
        /* Write to text and free the WKT */
        result = cstring_to_text(wkt);
        pfree(wkt);
 
        /* Return the text */
        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_TEXT_P(result);
}

References lwgeom_free(), lwgeom_from_gserialized(), lwgeom_to_wkt(), and WKT_EXTENDED.

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