9 #define G1FLAG_BBOX 0x04
10 #define G1FLAG_GEODETIC 0x08
11 #define G1FLAG_READONLY 0x10
12 #define G1FLAG_SOLID 0x20
16 #define G1FLAGS_GET_Z(gflags) ((gflags) & G1FLAG_Z)
17 #define G1FLAGS_GET_M(gflags) (((gflags) & G1FLAG_M)>>1)
18 #define G1FLAGS_GET_BBOX(gflags) (((gflags) & G1FLAG_BBOX)>>2)
19 #define G1FLAGS_GET_GEODETIC(gflags) (((gflags) & G1FLAG_GEODETIC)>>3)
20 #define G1FLAGS_GET_SOLID(gflags) (((gflags) & G1FLAG_SOLID)>>5)
23 #define G1FLAGS_SET_Z(gflags, value) ((gflags) = (value) ? ((gflags) | G1FLAG_Z) : ((gflags) & ~G1FLAG_Z))
24 #define G1FLAGS_SET_M(gflags, value) ((gflags) = (value) ? ((gflags) | G1FLAG_M) : ((gflags) & ~G1FLAG_M))
25 #define G1FLAGS_SET_BBOX(gflags, value) ((gflags) = (value) ? ((gflags) | G1FLAG_BBOX) : ((gflags) & ~G1FLAG_BBOX))
26 #define G1FLAGS_SET_GEODETIC(gflags, value) ((gflags) = (value) ? ((gflags) | G1FLAG_GEODETIC) : ((gflags) & ~G1FLAG_GEODETIC))
27 #define G1FLAGS_SET_SOLID(gflags, value) ((gflags) = (value) ? ((gflags) | G1FLAG_SOLID) : ((gflags) & ~G1FLAG_SOLID))
29 #define G1FLAGS_NDIMS(gflags) (2 + G1FLAGS_GET_Z(gflags) + G1FLAGS_GET_M(gflags))
30 #define G1FLAGS_GET_ZM(gflags) (G1FLAGS_GET_M(gflags) + G1FLAGS_GET_Z(gflags) * 2)
31 #define G1FLAGS_NDIMS_BOX(gflags) (G1FLAGS_GET_GEODETIC(gflags) ? 3 : G1FLAGS_NDIMS(gflags))
33 uint8_t
g1flags(
int has_z,
int has_m,
int is_geodetic);
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).
int gserialized1_is_empty(const GSERIALIZED *g)
Check if a GSERIALIZED is empty without deserializing first.
uint8_t g1flags(int has_z, int has_m, int is_geodetic)
int gserialized1_has_z(const GSERIALIZED *gser)
Check if a GSERIALIZED has a Z ordinate.
int gserialized1_get_gbox_p(const GSERIALIZED *g, GBOX *gbox)
Read the box from the GSERIALIZED or calculate it if necessary.
int gserialized1_ndims(const GSERIALIZED *gser)
Return the number of dimensions (2, 3, 4) in a geometry.
lwflags_t gserialized1_get_lwflags(const GSERIALIZED *g)
Read the flags from a GSERIALIZED and return a standard lwflag integer.
int32_t gserialized1_hash(const GSERIALIZED *g)
Returns a hash code for the srid/type/geometry information in the GSERIALIZED.
uint32_t gserialized1_get_type(const GSERIALIZED *g)
Extract the geometry type from the serialized form (it hides in the anonymous data area,...
int gserialized1_peek_gbox_p(const GSERIALIZED *g, GBOX *gbox)
int gserialized1_has_bbox(const GSERIALIZED *gser)
Check if a GSERIALIZED has a bounding box without deserializing first.
GSERIALIZED * gserialized1_set_gbox(GSERIALIZED *g, GBOX *gbox)
Copy a new bounding box into an existing gserialized.
uint32_t gserialized1_max_header_size(void)
Returns the size in bytes to read from toast to get the basic information from a geometry: GSERIALIZE...
LWGEOM * lwgeom_from_gserialized1(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
int gserialized1_has_m(const GSERIALIZED *gser)
Check if a GSERIALIZED has an M ordinate.
GSERIALIZED * gserialized1_from_lwgeom(LWGEOM *geom, size_t *size)
Allocate a new GSERIALIZED from an LWGEOM.
const float * gserialized1_get_float_box_p(const GSERIALIZED *g, size_t *ndims)
Point into the float box area of the serialization.
int gserialized1_peek_first_point(const GSERIALIZED *g, POINT4D *out_point)
int gserialized1_is_geodetic(const GSERIALIZED *gser)
Check if a GSERIALIZED is a geography.
size_t gserialized1_from_lwgeom_size(const LWGEOM *geom)
Return the memory size a GSERIALIZED will occupy for a given LWGEOM.
int gserialized1_fast_gbox_p(const GSERIALIZED *g, GBOX *gbox)
Read the box from the GSERIALIZED or return #LWFAILURE if box is unavailable.
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)...
uint8_t lwflags_get_g1flags(lwflags_t lwflags)
GSERIALIZED * gserialized1_drop_gbox(GSERIALIZED *g)
Remove the bounding box from a GSERIALIZED.
lwflags_t lwflags(int hasz, int hasm, int geodetic)
Construct a new flags bitmask.