PostGIS  3.0.6dev-r@@SVN_REVISION@@
gserialized1.h File Reference
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Macros

#define G1FLAG_Z   0x01
 Macros for manipulating the 'flags' byte. More...
 
#define G1FLAG_M   0x02
 
#define G1FLAG_BBOX   0x04
 
#define G1FLAG_GEODETIC   0x08
 
#define G1FLAG_READONLY   0x10
 
#define G1FLAG_SOLID   0x20
 
#define G1FLAGS_GET_Z(gflags)   ((gflags) & G1FLAG_Z)
 
#define G1FLAGS_GET_M(gflags)   (((gflags) & G1FLAG_M)>>1)
 
#define G1FLAGS_GET_BBOX(gflags)   (((gflags) & G1FLAG_BBOX)>>2)
 
#define G1FLAGS_GET_GEODETIC(gflags)   (((gflags) & G1FLAG_GEODETIC)>>3)
 
#define G1FLAGS_GET_SOLID(gflags)   (((gflags) & G1FLAG_SOLID)>>5)
 
#define G1FLAGS_SET_Z(gflags, value)   ((gflags) = (value) ? ((gflags) | G1FLAG_Z) : ((gflags) & ~G1FLAG_Z))
 
#define G1FLAGS_SET_M(gflags, value)   ((gflags) = (value) ? ((gflags) | G1FLAG_M) : ((gflags) & ~G1FLAG_M))
 
#define G1FLAGS_SET_BBOX(gflags, value)   ((gflags) = (value) ? ((gflags) | G1FLAG_BBOX) : ((gflags) & ~G1FLAG_BBOX))
 
#define G1FLAGS_SET_GEODETIC(gflags, value)   ((gflags) = (value) ? ((gflags) | G1FLAG_GEODETIC) : ((gflags) & ~G1FLAG_GEODETIC))
 
#define G1FLAGS_SET_SOLID(gflags, value)   ((gflags) = (value) ? ((gflags) | G1FLAG_SOLID) : ((gflags) & ~G1FLAG_SOLID))
 
#define G1FLAGS_NDIMS(gflags)   (2 + G1FLAGS_GET_Z(gflags) + G1FLAGS_GET_M(gflags))
 
#define G1FLAGS_GET_ZM(gflags)   (G1FLAGS_GET_M(gflags) + G1FLAGS_GET_Z(gflags) * 2)
 
#define G1FLAGS_NDIMS_BOX(gflags)   (G1FLAGS_GET_GEODETIC(gflags) ? 3 : G1FLAGS_NDIMS(gflags))
 

Functions

uint8_t g1flags (int has_z, int has_m, int is_geodetic)
 
uint8_t lwflags_get_g1flags (lwflags_t lwflags)
 
lwflags_t gserialized1_get_lwflags (const GSERIALIZED *g)
 Read the flags from a GSERIALIZED and return a standard lwflag integer. More...
 
GSERIALIZEDgserialized1_set_gbox (GSERIALIZED *g, GBOX *gbox)
 Copy a new bounding box into an existing gserialized. More...
 
GSERIALIZEDgserialized1_drop_gbox (GSERIALIZED *g)
 Remove the bounding box from a GSERIALIZED. More...
 
int gserialized1_get_gbox_p (const GSERIALIZED *g, GBOX *gbox)
 Read the box from the GSERIALIZED or calculate it if necessary. More...
 
int gserialized1_fast_gbox_p (const GSERIALIZED *g, GBOX *gbox)
 Read the box from the GSERIALIZED or return #LWFAILURE if box is unavailable. More...
 
uint32_t gserialized1_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 gserialized1_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 gserialized1_hash (const GSERIALIZED *g)
 Returns a hash code for the srid/type/geometry information in the GSERIALIZED. More...
 
int32_t gserialized1_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 gserialized1_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 gserialized1_is_empty (const GSERIALIZED *g)
 Check if a GSERIALIZED is empty without deserializing first. More...
 
int gserialized1_has_bbox (const GSERIALIZED *gser)
 Check if a GSERIALIZED has a bounding box without deserializing first. More...
 
int gserialized1_has_z (const GSERIALIZED *gser)
 Check if a GSERIALIZED has a Z ordinate. More...
 
int gserialized1_has_m (const GSERIALIZED *gser)
 Check if a GSERIALIZED has an M ordinate. More...
 
int gserialized1_is_geodetic (const GSERIALIZED *gser)
 Check if a GSERIALIZED is a geography. More...
 
int gserialized1_ndims (const GSERIALIZED *gser)
 Return the number of dimensions (2, 3, 4) in a geometry. More...
 
GSERIALIZEDgserialized1_from_lwgeom (LWGEOM *geom, size_t *size)
 Allocate a new GSERIALIZED from an LWGEOM. More...
 
size_t gserialized1_from_lwgeom_size (const LWGEOM *geom)
 Return the memory size a GSERIALIZED will occupy for a given LWGEOM. More...
 
LWGEOMlwgeom_from_gserialized1 (const GSERIALIZED *g)
 Allocate a new LWGEOM from a GSERIALIZED. More...
 
const float * gserialized1_get_float_box_p (const GSERIALIZED *g, size_t *ndims)
 Point into the float box area of the serialization. More...
 
int gserialized1_peek_gbox_p (const GSERIALIZED *g, GBOX *gbox)
 
int gserialized1_peek_first_point (const GSERIALIZED *g, POINT4D *out_point)