PostGIS  2.5.0dev-r@@SVN_REVISION@@
double lwgeom_mindistance2d_tolerance ( const LWGEOM lw1,
const LWGEOM lw2,
double  tolerance 
)

Function handling min distance calculations and dwithin calculations.

The difference is just the tolerance.

Definition at line 213 of file measures.c.

References DIST_MIN, DISTPTS::distance, lw_dist2d_comp(), LWDEBUG, lwerror(), DISTPTS::mode, and DISTPTS::tolerance.

Referenced by do_test_mindistance2d_tolerance(), LWGEOM_dwithin(), lwgeom_mindistance2d(), lwgeom_mindistance3d_tolerance(), lwt_GetEdgeByPoint(), lwt_GetFaceByPoint(), rt_raster_within_distance(), union_dbscan_general(), and union_dbscan_minpoints_1().

214 {
215  DISTPTS thedl;
216  LWDEBUG(2, "lwgeom_mindistance2d_tolerance is called");
217  thedl.mode = DIST_MIN;
218  thedl.distance= FLT_MAX;
219  thedl.tolerance = tolerance;
220  if (lw_dist2d_comp( lw1,lw2,&thedl))
221  {
222  return thedl.distance;
223  }
224  /*should never get here. all cases ought to be error handled earlier*/
225  lwerror("Some unspecified error.");
226  return FLT_MAX;
227 }
int lw_dist2d_comp(const LWGEOM *lw1, const LWGEOM *lw2, DISTPTS *dl)
This function just deserializes geometries Bboxes is not checked here since it is the subgeometries b...
Definition: measures.c:245
int mode
Definition: measures.h:51
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:83
double tolerance
Definition: measures.h:53
#define DIST_MIN
Definition: measures.h:41
double distance
Definition: measures.h:48
Structure used in distance-calculations.
Definition: measures.h:46
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190

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