PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ 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 */
97
98 /* Force the geometry to have valid geodetic coordinate range. */
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)
int lwgeom_nudge_geodetic(LWGEOM *geom)
Gently move coordinates of LWGEOM if they are close enough into geodetic range.
#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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