isvalidreason()

Datum isvalidreason

(

PG_FUNCTION_ARGS

)

Definition at line 1591 of file postgis/lwgeom_geos.c.

References dumpnode::geom, HANDLE_GEOS_ERROR, isvaliddetail(), lwgeom_geos_errmsg, lwgeom_geos_error(), PG_FUNCTION_INFO_V1(), and POSTGIS2GEOS().

Referenced by isvalid().

{
        GSERIALIZED *geom = NULL;
        char *reason_str = NULL;
        text *result = NULL;
        const GEOSGeometry *g1 = NULL;

        geom = PG_GETARG_GSERIALIZED_P(0);

        initGEOS(lwpgnotice, lwgeom_geos_error);

        g1 = (GEOSGeometry *)POSTGIS2GEOS(geom);
        if ( g1 )
        {
                reason_str = GEOSisValidReason(g1);
                GEOSGeom_destroy((GEOSGeometry *)g1);
                if (reason_str == NULL)
                {
                        HANDLE_GEOS_ERROR("GEOSisValidReason");
                        PG_RETURN_NULL(); /* never get here */
                }
                result = cstring2text(reason_str);
                GEOSFree(reason_str);
        }
        else
        {
                result = cstring2text(lwgeom_geos_errmsg);
        }

        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_POINTER(result);
}

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