tgeo_tile.h File Reference

#include <liblwgeom.h>
#include <meos.h>

Go to the source code of this file.

Data Structures
struct	BitMatrix
	Structure for storing a bit matrix. More...
struct	STboxGridState
	Struct for storing the state that persists across multiple calls generating a multidimensional grid. More...

Macros
#define	MAXDIMS   4
	Functions for spatiotemporal bounding boxes. More...

Typedefs
typedef struct STboxGridState	STboxGridState
	Struct for storing the state that persists across multiple calls generating a multidimensional grid. More...

Functions
BitMatrix *	bitmatrix_make (int *count, int ndims)
	Create a bit matrix. More...
STBox *	stbox_space_time_tile (const GSERIALIZED *point, TimestampTz t, double xsize, double ysize, double zsize, const Interval *duration, const GSERIALIZED *sorigin, TimestampTz torigin, bool hasx, bool hast)
	Return a tile in the multidimensional grid of a spatiotemporal box. More...
bool	stbox_tile_state_get (STboxGridState *state, STBox *box)
	Get the current tile of the multidimensional grid. More...
STboxGridState *	stbox_tile_state_make (const Temporal *temp, const STBox *box, double xsize, double ysize, double zsize, const Interval *duration, POINT3DZ sorigin, TimestampTz torigin, bool border_inc)
	Create the initial state that persists across multiple calls of the function. More...
void	stbox_tile_state_next (STboxGridState *state)
	Increment the current state to the next tile of the multidimensional grid. More...
void	stbox_tile_state_set (double x, double y, double z, TimestampTz t, double xsize, double ysize, double zsize, int64 tunits, bool hasx, bool hasz, bool hast, int32 srid, STBox *result)
	Generate a tile from the current state of the multidimensional grid. More...
STboxGridState *	tgeo_space_time_tile_init (const Temporal *temp, double xsize, double ysize, double zsize, const Interval *duration, const GSERIALIZED *sorigin, TimestampTz torigin, bool bitmatrix, bool border_inc, int *ntiles)
	Set the state with a temporal point and a space and possibly time grid for splitting or obtaining a set of spatiotemporal boxes. More...
Temporal *	tpoint_at_tile (const Temporal *temp, const STBox *box)
	Restrict a temporal point to a tile defined by a spatiotemporal box. More...
int	tpoint_set_tiles (const Temporal *temp, const STboxGridState *state, BitMatrix *bm)
	Set the bit corresponding to the tiles intersecting a temporal point. More...