PostGIS  3.0.6dev-r@@SVN_REVISION@@

◆ gserialized_geography_from_lwgeom()

GSERIALIZED * gserialized_geography_from_lwgeom ( LWGEOM lwgeom,
int32  geog_typmod 
)

Definition at line 88 of file geography_inout.c.

89 {
90  GSERIALIZED *g_ser = NULL;
91 
92  /* Set geodetic flag */
93  lwgeom_set_geodetic(lwgeom, true);
94 
95  /* Check that this is a type we can handle */
96  geography_valid_type(lwgeom->type);
97 
98  /* Force the geometry to have valid geodetic coordinate range. */
99  lwgeom_nudge_geodetic(lwgeom);
100  if ( lwgeom_force_geodetic(lwgeom) == LW_TRUE )
101  {
102  ereport(NOTICE, (
103  errmsg_internal("Coordinate values were coerced into range [-180 -90, 180 90] for GEOGRAPHY" ))
104  );
105  }
106 
107  /* Force default SRID to the default */
108  if ( (int)lwgeom->srid <= 0 )
109  lwgeom->srid = SRID_DEFAULT;
110 
111  /*
112  ** Serialize our lwgeom and set the geodetic flag so subsequent
113  ** functions do the right thing.
114  */
115  g_ser = geography_serialize(lwgeom);
116 
117  /* Check for typmod agreement */
118  if ( geog_typmod >= 0 )
119  {
120  g_ser = postgis_valid_typmod(g_ser, geog_typmod);
121  POSTGIS_DEBUG(3, "typmod and geometry were consistent");
122  }
123  else
124  {
125  POSTGIS_DEBUG(3, "typmod was -1");
126  }
127 
128  return g_ser;
129 }
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...
void geography_valid_type(uint8_t type)
The geography type only support POINT, LINESTRING, POLYGON, MULTI* variants of same,...
void lwgeom_set_geodetic(LWGEOM *geom, int value)
Set the FLAGS geodetic bit on geometry an all sub-geometries and pointlists.
Definition: lwgeom.c:946
#define SRID_DEFAULT
Definition: liblwgeom.h:239
int lwgeom_force_geodetic(LWGEOM *geom)
Force coordinates of LWGEOM into geodetic range (-180, -90, 180, 90)
Definition: lwgeodetic.c:3222
int lwgeom_nudge_geodetic(LWGEOM *geom)
Gently move coordinates of LWGEOM if they are close enough into geodetic range.
Definition: lwgeodetic.c:3404
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:107
uint8_t type
Definition: liblwgeom.h:448
int32_t srid
Definition: liblwgeom.h:446

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().

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