relate_full()

Datum relate_full

(

PG_FUNCTION_ARGS

)

Definition at line 971 of file lwgeom_geos_predicates.c.

{
        GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
        GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
        GEOSGeometry *g1, *g2;
        char *relate_str;
        text *result;
        int bnr = GEOSRELATE_BNR_OGC;
 
        /* TODO handle empty */
        gserialized_error_if_srid_mismatch(geom1, geom2, __func__);
 
        if ( PG_NARGS() > 2 )
                bnr = PG_GETARG_INT32(2);
 
        initGEOS(lwpgnotice, lwgeom_geos_error);
 
        g1 = POSTGIS2GEOS(geom1);
        if (!g1)
                HANDLE_GEOS_ERROR("First argument geometry could not be converted to GEOS");
        g2 = POSTGIS2GEOS(geom2);
        if (!g2)
        {
                GEOSGeom_destroy(g1);
                HANDLE_GEOS_ERROR("Second argument geometry could not be converted to GEOS");
        }
 
        POSTGIS_DEBUG(3, "constructed geometries ");
 
        POSTGIS_DEBUGF(3, "%s", GEOSGeomToWKT(g1));
        POSTGIS_DEBUGF(3, "%s", GEOSGeomToWKT(g2));
 
        relate_str = GEOSRelateBoundaryNodeRule(g1, g2, bnr);
        if (!relate_str) {
                GEOSGeom_destroy(g1);
                GEOSGeom_destroy(g2);
                HANDLE_GEOS_ERROR("GEOSRelate");
        }
        result = cstring_to_text(relate_str);
        GEOSFree(relate_str);
        GEOSGeom_destroy(g1);
        GEOSGeom_destroy(g2);
 
        PG_FREE_IF_COPY(geom1, 0);
        PG_FREE_IF_COPY(geom2, 1);
 
        PG_RETURN_TEXT_P(result);
}

References gserialized_error_if_srid_mismatch(), HANDLE_GEOS_ERROR, lwgeom_geos_error(), POSTGIS2GEOS(), and result.

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