geometry_to_json()

Datum geometry_to_json

(

PG_FUNCTION_ARGS

)

Definition at line 266 of file lwgeom_export.c.

{
        GSERIALIZED *geom = PG_GETARG_GSERIALIZED_P(0);
        LWGEOM *lwgeom = lwgeom_from_gserialized(geom);
        const char *srs = NULL;
        lwvarlena_t *geojson;
        if (lwgeom->srid != SRID_UNKNOWN)
        {
                const int short_crs = LW_TRUE;
                srs = GetSRSCacheBySRID(fcinfo, lwgeom->srid, short_crs);
        }
        geojson = lwgeom_to_geojson(lwgeom, srs, 15, 0);
        lwgeom_free(lwgeom);
        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_TEXT_P(geojson);
}

References LW_TRUE, lwgeom_free(), lwgeom_from_gserialized(), lwgeom_to_geojson(), LWGEOM::srid, and SRID_UNKNOWN.

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