PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ ptarray_same()

char ptarray_same ( const POINTARRAY pa1,
const POINTARRAY pa2 
)

Definition at line 478 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().

479 {
480  uint32_t i;
481  size_t ptsize;
482 
483  if ( FLAGS_GET_ZM(pa1->flags) != FLAGS_GET_ZM(pa2->flags) ) return LW_FALSE;
484  LWDEBUG(5,"dimensions are the same");
485 
486  if ( pa1->npoints != pa2->npoints ) return LW_FALSE;
487  LWDEBUG(5,"npoints are the same");
488 
489  ptsize = ptarray_point_size(pa1);
490  LWDEBUGF(5, "ptsize = %d", ptsize);
491 
492  for (i=0; i<pa1->npoints; i++)
493  {
494  if ( memcmp(getPoint_internal(pa1, i), getPoint_internal(pa2, i), ptsize) )
495  return LW_FALSE;
496  LWDEBUGF(5,"point #%d is the same",i);
497  }
498 
499  return LW_TRUE;
500 }
size_t ptarray_point_size(const POINTARRAY *pa)
Definition: ptarray.c:54
#define FLAGS_GET_ZM(flags)
Definition: liblwgeom.h:152
#define LWDEBUG(level, msg)
Definition: lwgeom_log.h:83
uint8_t * getPoint_internal(const POINTARRAY *pa, uint32_t n)
Definition: ptarray.c:1743
unsigned int uint32_t
Definition: uthash.h:78
#define LW_FALSE
Definition: liblwgeom.h:76
uint8_t flags
Definition: liblwgeom.h:371
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:75
#define LWDEBUGF(level, msg,...)
Definition: lwgeom_log.h:88
uint32_t npoints
Definition: liblwgeom.h:373
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