tnumber_distance.h

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#ifndef __TNUMBER_DISTANCE_H__
#define __TNUMBER_DISTANCE_H__
 
/* MEOS */
#include "general/meos_catalog.h"
#include "general/temporal.h"
 
/*****************************************************************************/
 
/* Distance functions */
 
extern Temporal *distance_tnumber_number(const Temporal *temp, Datum value,
  meosType valuetype, meosType restype);
extern Temporal *distance_tnumber_tnumber1(const Temporal *temp1,
  const Temporal *temp2, meosType restype);
 
extern Datum number_distance(Datum l, Datum r, meosType typel,
  meosType typer);
 
/* Nearest approach distance */
 
extern double nad_tnumber_number(const Temporal *temp, Datum value,
  meosType basetype);
extern double nad_tbox_tbox(const TBox *box1, const TBox *box2);
extern double nad_tnumber_tbox(const Temporal *temp, const TBox *box);
 
// NAI and shortestline functions are not yet implemented
// Are they useful ?
 
/*****************************************************************************/
 
#endif