PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ lwgeom_mindistance3d_tolerance()

double lwgeom_mindistance3d_tolerance ( const LWGEOM lw1,
const LWGEOM lw2,
double  tolerance 
)

Function handling 3d min distance calculations and dwithin calculations.

The difference is just the tolerance.

Definition at line 363 of file measures3d.c.

References DIST_MIN, DISTPTS3D::distance, lw_dist3d_recursive(), LWDEBUG, lwerror(), lwgeom_has_z(), lwgeom_mindistance2d_tolerance(), lwnotice(), DISTPTS3D::mode, and DISTPTS3D::tolerance.

Referenced by intersects3d_dwithin(), LWGEOM_dwithin3d(), and lwgeom_mindistance3d().

364 {
365  if(!lwgeom_has_z(lw1) || !lwgeom_has_z(lw2))
366  {
367  lwnotice("One or both of the geometries is missing z-value. The unknown z-value will be regarded as \"any value\"");
368 
369  return lwgeom_mindistance2d_tolerance(lw1, lw2, tolerance);
370  }
371  DISTPTS3D thedl;
372  LWDEBUG(2, "lwgeom_mindistance3d_tolerance is called");
373  thedl.mode = DIST_MIN;
374  thedl.distance= FLT_MAX;
375  thedl.tolerance = tolerance;
376  if (lw_dist3d_recursive(lw1, lw2, &thedl))
377  {
378  return thedl.distance;
379  }
380  /*should never get here. all cases ought to be error handled earlier*/
381  lwerror("Some unspecified error.");
382  return FLT_MAX;
383 }
double distance
Definition: measures3d.h:41
void lwnotice(const char *fmt,...)
Write a notice out to the notice handler.
Definition: lwutil.c:177
double lwgeom_mindistance2d_tolerance(const LWGEOM *lw1, const LWGEOM *lw2, double tolerance)
Function handling min distance calculations and dwithin calculations.
Definition: measures.c:213
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:83
Structure used in distance-calculations.
Definition: measures3d.h:39
int lwgeom_has_z(const LWGEOM *geom)
Return LW_TRUE if geometry has Z ordinates.
Definition: lwgeom.c:930
#define DIST_MIN
Definition: measures.h:41
int mode
Definition: measures3d.h:44
int lw_dist3d_recursive(const LWGEOM *lwg1, const LWGEOM *lwg2, DISTPTS3D *dl)
This is a recursive function delivering every possible combination of subgeometries.
Definition: measures3d.c:399
double tolerance
Definition: measures3d.h:46
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
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