gserialized.h File Reference

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Functions
lwflags_t	gserialized_get_lwflags (const GSERIALIZED *g)
	Read the flags from a GSERIALIZED and return a standard lwflag integer. More...
GSERIALIZED *	gserialized_set_gbox (GSERIALIZED *g, GBOX *gbox)
	Copy a new bounding box into an existing gserialized. More...
GSERIALIZED *	gserialized_drop_gbox (GSERIALIZED *g)
	Remove the bounding box from a GSERIALIZED. More...
int	gserialized_get_gbox_p (const GSERIALIZED *g, GBOX *gbox)
	Read the box from the GSERIALIZED or calculate it if necessary. More...
int	gserialized_fast_gbox_p (const GSERIALIZED *g, GBOX *gbox)
	Read the box from the GSERIALIZED or return #LWFAILURE if box is unavailable. More...
uint32_t	gserialized_get_type (const GSERIALIZED *g)
	Extract the geometry type from the serialized form (it hides in the anonymous data area, so this is a handy function). More...
uint32_t	gserialized_max_header_size (void)
	Returns the size in bytes to read from toast to get the basic information from a geometry: GSERIALIZED struct, bbox and type. More...
int32_t	gserialized_hash (const GSERIALIZED *g)
	Returns a hash code for the srid/type/geometry information in the GSERIALIZED. More...
int32_t	gserialized_get_srid (const GSERIALIZED *g)
	Extract the SRID from the serialized form (it is packed into three bytes so this is a handy function). More...
void	gserialized_set_srid (GSERIALIZED *g, int32_t srid)
	Write the SRID into the serialized form (it is packed into three bytes so this is a handy function). More...
int	gserialized_is_empty (const GSERIALIZED *g)
	Check if a GSERIALIZED is empty without deserializing first. More...
int	gserialized_has_bbox (const GSERIALIZED *gser)
	Check if a GSERIALIZED has a bounding box without deserializing first. More...
int	gserialized_has_z (const GSERIALIZED *gser)
	Check if a GSERIALIZED has a Z ordinate. More...
int	gserialized_has_m (const GSERIALIZED *gser)
	Check if a GSERIALIZED has an M ordinate. More...
int	gserialized_is_geodetic (const GSERIALIZED *gser)
	Check if a GSERIALIZED is a geography. More...
int	gserialized_ndims (const GSERIALIZED *gser)
	Return the number of dimensions (2, 3, 4) in a geometry. More...
int	gserialized_cmp (const GSERIALIZED *g1, const GSERIALIZED *g2)
	Return -1 if g1 is "less than" g2, 1 if g1 is "greater than" g2 and 0 if g1 and g2 are the "same". More...
GSERIALIZED *	gserialized_from_lwgeom (LWGEOM *geom, size_t *size)
	Allocate a new GSERIALIZED from an LWGEOM. More...
size_t	gserialized_from_lwgeom_size (const LWGEOM *geom)
	Return the memory size a GSERIALIZED will occupy for a given LWGEOM. More...
LWGEOM *	lwgeom_from_gserialized (const GSERIALIZED *g)
	Allocate a new LWGEOM from a GSERIALIZED. More...
int	gserialized_peek_first_point (const GSERIALIZED *g, POINT4D *out_point)
	Pull the first point values of a GSERIALIZED. More...