PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ gserialized_geography_from_lwgeom()

GSERIALIZED * gserialized_geography_from_lwgeom ( LWGEOM lwgeom,
int32  geog_typmod 
)

Definition at line 89 of file geography_inout.c.

References geography_in(), geography_valid_type(), LW_TRUE, lwgeom_force_geodetic(), lwgeom_nudge_geodetic(), lwgeom_set_geodetic(), PG_FUNCTION_INFO_V1(), postgis_valid_typmod(), LWGEOM::srid, SRID_DEFAULT, and LWGEOM::type.

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

90 {
91  GSERIALIZED *g_ser = NULL;
92 
93  /* Set geodetic flag */
94  lwgeom_set_geodetic(lwgeom, true);
95 
96  /* Check that this is a type we can handle */
97  geography_valid_type(lwgeom->type);
98 
99  /* Force the geometry to have valid geodetic coordinate range. */
100  lwgeom_nudge_geodetic(lwgeom);
101  if ( lwgeom_force_geodetic(lwgeom) == LW_TRUE )
102  {
103  ereport(NOTICE, (
104  errmsg_internal("Coordinate values were coerced into range [-180 -90, 180 90] for GEOGRAPHY" ))
105  );
106  }
107 
108  /* Force default SRID to the default */
109  if ( (int)lwgeom->srid <= 0 )
110  lwgeom->srid = SRID_DEFAULT;
111 
112  /*
113  ** Serialize our lwgeom and set the geodetic flag so subsequent
114  ** functions do the right thing.
115  */
116  g_ser = geography_serialize(lwgeom);
117 
118  /* Check for typmod agreement */
119  if ( geog_typmod >= 0 )
120  {
121  g_ser = postgis_valid_typmod(g_ser, geog_typmod);
122  POSTGIS_DEBUG(3, "typmod and geometry were consistent");
123  }
124  else
125  {
126  POSTGIS_DEBUG(3, "typmod was -1");
127  }
128 
129  return g_ser;
130 }
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:197
int lwgeom_nudge_geodetic(LWGEOM *geom)
Gently move coordinates of LWGEOM if they are close enough into geodetic range.
Definition: lwgeodetic.c:3316
int32_t srid
Definition: liblwgeom.h:401
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:75
int lwgeom_force_geodetic(LWGEOM *geom)
Force coordinates of LWGEOM into geodetic range (-180, -90, 180, 90)
Definition: lwgeodetic.c:3134
void lwgeom_set_geodetic(LWGEOM *geom, int value)
Set the FLAGS geodetic bit on geometry an all sub-geometries and pointlists.
Definition: lwgeom.c:952
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:398
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