geometry_from_geography()

Datum geometry_from_geography

(

PG_FUNCTION_ARGS

)

Definition at line 530 of file geography_inout.c.

{
        LWGEOM *lwgeom = NULL;
        GSERIALIZED *ret = NULL;
        GSERIALIZED *g_ser = PG_GETARG_GSERIALIZED_P(0);
 
        lwgeom = lwgeom_from_gserialized(g_ser);
 
        /* Recalculate the boxes after re-setting the geodetic bit */
        lwgeom_set_geodetic(lwgeom, false);
        lwgeom_refresh_bbox(lwgeom);
 
        /* We want "geometry" to think all our "geography" has an SRID, and the
           implied SRID is the default, so we fill that in if our SRID is actually unknown. */
        if ( (int)lwgeom->srid <= 0 )
                lwgeom->srid = SRID_DEFAULT;
 
        ret = geometry_serialize(lwgeom);
        lwgeom_free(lwgeom);
 
        PG_RETURN_POINTER(ret);
}

References lwgeom_free(), lwgeom_from_gserialized(), lwgeom_refresh_bbox(), lwgeom_set_geodetic(), LWGEOM::srid, and SRID_DEFAULT.

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