geography_from_geometry()

Datum geography_from_geometry

(

PG_FUNCTION_ARGS

)

Definition at line 608 of file geography_inout.c.

{
        GSERIALIZED *geom = PG_GETARG_GSERIALIZED_P_COPY(0);
        LWGEOM *lwgeom = NULL;
        GSERIALIZED *g_ser = NULL;
 
        geography_valid_type(gserialized_get_type(geom));
 
        lwgeom = lwgeom_from_gserialized(geom);
 
        /* Force default SRID */
        if ( (int)lwgeom->srid <= 0 )
        {
                lwgeom->srid = SRID_DEFAULT;
        }
 
        /* Error on any SRID != default */
        srid_is_latlong(fcinfo, lwgeom->srid);
 
        /* Force the geometry to have valid geodetic coordinate range. */
        lwgeom_nudge_geodetic(lwgeom);
        if ( lwgeom_force_geodetic(lwgeom) == LW_TRUE )
        {
                ereport(NOTICE, (
                        errmsg_internal("Coordinate values were coerced into range [-180 -90, 180 90] for GEOGRAPHY" ))
                );
        }
 
        /* force recalculate of box by dropping */
        lwgeom_drop_bbox(lwgeom);
 
        lwgeom_set_geodetic(lwgeom, true);
        /* We are trusting geography_serialize will add a box if needed */
        g_ser = geography_serialize(lwgeom);
 
 
        lwgeom_free(lwgeom);
 
        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_POINTER(g_ser);
}

References geography_valid_type(), gserialized_get_type(), LW_TRUE, lwgeom_drop_bbox(), lwgeom_force_geodetic(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_nudge_geodetic(), lwgeom_set_geodetic(), LWGEOM::srid, and SRID_DEFAULT.

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