PostGIS  2.5.0beta2dev-r@@SVN_REVISION@@

◆ lwpoint_construct_empty()

LWPOINT* lwpoint_construct_empty ( int  srid,
char  hasz,
char  hasm 
)

Definition at line 151 of file lwpoint.c.

References LWPOINT::bbox, LWPOINT::flags, gflags(), lwalloc(), LWPOINT::point, POINTTYPE, ptarray_construct(), LWPOINT::srid, and LWPOINT::type.

Referenced by GEOS2LWGEOM(), lwgeom_centroid(), lwgeom_construct_empty(), lwgeom_filter_m(), lwgeom_pointonsurface(), lwmpoint_median(), lwpoint_force_dims(), lwpoint_from_twkb_state(), lwpoint_from_wkb_state(), parse_gml_point(), postgis_valid_typmod(), read_lwgeom_from_partition(), SFCGAL2LWGEOM(), ST_MinimumBoundingCircle(), ST_MinimumBoundingRadius(), and wkt_parser_point_new().

152 {
153  LWPOINT *result = lwalloc(sizeof(LWPOINT));
154  result->type = POINTTYPE;
155  result->flags = gflags(hasz, hasm, 0);
156  result->srid = srid;
157  result->point = ptarray_construct(hasz, hasm, 0);
158  result->bbox = NULL;
159  return result;
160 }
POINTARRAY * ptarray_construct(char hasz, char hasm, uint32_t npoints)
Construct an empty pointarray, allocating storage and setting the npoints, but not filling in any inf...
Definition: ptarray.c:62
uint8_t type
Definition: liblwgeom.h:409
POINTARRAY * point
Definition: liblwgeom.h:413
int32_t srid
Definition: liblwgeom.h:412
uint8_t gflags(int hasz, int hasm, int geodetic)
Construct a new flags char.
Definition: g_util.c:145
uint8_t flags
Definition: liblwgeom.h:410
GBOX * bbox
Definition: liblwgeom.h:411
#define POINTTYPE
LWTYPE numbers, used internally by PostGIS.
Definition: liblwgeom.h:84
void * lwalloc(size_t size)
Definition: lwutil.c:229
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