PostGIS  2.2.7dev-r@@SVN_REVISION@@
char ptarray_same ( const POINTARRAY pa1,
const POINTARRAY pa2 
)

Definition at line 484 of file ptarray.c.

References POINTARRAY::flags, FLAGS_GET_ZM, getPoint_internal(), LW_FALSE, LW_TRUE, LWDEBUG, LWDEBUGF, POINTARRAY::npoints, and ptarray_point_size().

Referenced by lwcircstring_same(), lwline_same(), lwpoint_same(), lwpoly_same(), lwtriangle_is_repeated_points(), and lwtriangle_same().

485 {
486  uint32_t i;
487  size_t ptsize;
488 
489  if ( FLAGS_GET_ZM(pa1->flags) != FLAGS_GET_ZM(pa2->flags) ) return LW_FALSE;
490  LWDEBUG(5,"dimensions are the same");
491 
492  if ( pa1->npoints != pa2->npoints ) return LW_FALSE;
493  LWDEBUG(5,"npoints are the same");
494 
495  ptsize = ptarray_point_size(pa1);
496  LWDEBUGF(5, "ptsize = %d", ptsize);
497 
498  for (i=0; i<pa1->npoints; i++)
499  {
500  if ( memcmp(getPoint_internal(pa1, i), getPoint_internal(pa2, i), ptsize) )
501  return LW_FALSE;
502  LWDEBUGF(5,"point #%d is the same",i);
503  }
504 
505  return LW_TRUE;
506 }
int ptarray_point_size(const POINTARRAY *pa)
Definition: ptarray.c:54
int npoints
Definition: liblwgeom.h:355
#define FLAGS_GET_ZM(flags)
Definition: liblwgeom.h:137
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:50
#define LW_FALSE
Definition: liblwgeom.h:62
uint8_t flags
Definition: liblwgeom.h:353
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:61
#define LWDEBUGF(level, msg,...)
Definition: lwgeom_log.h:55
uint8_t * getPoint_internal(const POINTARRAY *pa, int n)
Definition: ptarray.c:1706

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