PostGIS  2.1.10dev-r@@SVN_REVISION@@
GSERIALIZED * gserialized_geography_from_lwgeom ( LWGEOM lwgeom,
int32  geog_typmod 
)

Definition at line 75 of file geography_inout.c.

References geography_valid_type(), LW_TRUE, lwgeom_force_geodetic(), lwgeom_nudge_geodetic(), lwgeom_set_geodetic(), postgis_valid_typmod(), LWGEOM::srid, SRID_DEFAULT, and LWGEOM::type.

Referenced by geography_from_binary(), geography_from_text(), geography_in(), and geography_recv().

76 {
77  GSERIALIZED *g_ser = NULL;
78 
79  /* Set geodetic flag */
80  lwgeom_set_geodetic(lwgeom, true);
81 
82  /* Check that this is a type we can handle */
83  geography_valid_type(lwgeom->type);
84 
85  /* Force the geometry to have valid geodetic coordinate range. */
86  lwgeom_nudge_geodetic(lwgeom);
87  if ( lwgeom_force_geodetic(lwgeom) == LW_TRUE )
88  {
89  ereport(NOTICE, (
90  errmsg_internal("Coordinate values were coerced into range [-180 -90, 180 90] for GEOGRAPHY" ))
91  );
92  }
93 
94  /* Force default SRID to the default */
95  if ( (int)lwgeom->srid <= 0 )
96  lwgeom->srid = SRID_DEFAULT;
97 
98  /*
99  ** Serialize our lwgeom and set the geodetic flag so subsequent
100  ** functions do the right thing.
101  */
102  g_ser = geography_serialize(lwgeom);
103 
104  /* Check for typmod agreement */
105  if ( geog_typmod >= 0 )
106  {
107  g_ser = postgis_valid_typmod(g_ser, geog_typmod);
108  POSTGIS_DEBUG(3, "typmod and geometry were consistent");
109  }
110  else
111  {
112  POSTGIS_DEBUG(3, "typmod was -1");
113  }
114 
115  return g_ser;
116 }
GSERIALIZED * postgis_valid_typmod(GSERIALIZED *gser, int32_t typmod)
Check the consistency of the metadata we want to enforce in the typmod: srid, type and dimensionality...
#define SRID_DEFAULT
Definition: liblwgeom.h:161
int lwgeom_nudge_geodetic(LWGEOM *geom)
Gently move coordinates of LWGEOM if they are close enough into geodetic range.
Definition: lwgeodetic.c:2988
int32_t srid
Definition: liblwgeom.h:355
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:51
int lwgeom_force_geodetic(LWGEOM *geom)
Force coordinates of LWGEOM into geodetic range (-180, -90, 180, 90)
Definition: lwgeodetic.c:2806
void lwgeom_set_geodetic(LWGEOM *geom, int value)
Set the FLAGS geodetic bit on geometry an all sub-geometries and pointlists.
Definition: lwgeom.c:814
void geography_valid_type(uint8_t type)
The geography type only support POINT, LINESTRING, POLYGON, MULTI* variants of same, and GEOMETRYCOLLECTION.
uint8_t type
Definition: liblwgeom.h:352

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