tpoint_tile.h

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/*****************************************************************************
 *
 * This MobilityDB code is provided under The PostgreSQL License.
 * Copyright (c) 2016-2023, Université libre de Bruxelles and MobilityDB
 * contributors
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 * MobilityDB includes portions of PostGIS version 3 source code released
 * under the GNU General Public License (GPLv2 or later).
 * Copyright (c) 2001-2023, PostGIS contributors
 *
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#ifndef __TPOINT_TILE_H__
#define __TPOINT_TILE_H__
 
/* MEOS */
#include "general/temporal.h"
 
#define MAXDIMS 4
 
/*****************************************************************************/
 
typedef struct
{
  int numdims;           
  int count[MAXDIMS];    
  uint8_t byte[1];       
} BitMatrix;
 
typedef struct STboxGridState
{
  bool done;             
  int i;                 
  double size;           
  int64 tunits;          
  STBox box;             
  const Temporal *temp;  
  BitMatrix *bm;         
  double x;              
  double y;              
  double z;              
  TimestampTz t;         
  int coords[MAXDIMS];   
} STboxGridState;
 
/*****************************************************************************/
 
extern BitMatrix *bitmatrix_make(int *count, int numdims);
extern void tpoint_set_tiles(const Temporal *temp, const STboxGridState *state,
  BitMatrix *bm);
 
extern void stbox_tile_set(double x, double y, double z, TimestampTz t,
  double size, int64 tunits, bool hasz, bool hast, int32 srid, STBox *result);
extern STboxGridState *stbox_tile_state_make(const Temporal *temp,
  const STBox *box, double size, int64 tunits, POINT3DZ sorigin,
  TimestampTz torigin);
extern void stbox_tile_state_next(STboxGridState *state);
extern bool stbox_tile_state_get(STboxGridState *state, STBox *box);
 
/*****************************************************************************/
 
#endif