PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ lwmcurve_to_wkt_sb()

static void lwmcurve_to_wkt_sb ( const LWMCURVE mcurv,
stringbuffer_t sb,
int  precision,
uint8_t  variant 
)
static

Definition at line 411 of file lwout_wkt.c.

412 {
413  uint32_t i = 0;
414 
415  if ( ! (variant & WKT_NO_TYPE) )
416  {
417  stringbuffer_append_len(sb, "MULTICURVE", 10); /* "MULTICURVE" */
419  }
420  if ( mcurv->ngeoms < 1 )
421  {
422  empty_to_wkt_sb(sb);
423  return;
424  }
425  stringbuffer_append_len(sb, "(", 1);
426  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
427  for ( i = 0; i < mcurv->ngeoms; i++ )
428  {
429  int type = mcurv->geoms[i]->type;
430  if ( i > 0 )
431  stringbuffer_append_len(sb, ",", 1);
432  switch (type)
433  {
434  case LINETYPE:
435  /* Linestring subgeoms don't get type identifiers */
437  break;
438  case CIRCSTRINGTYPE:
439  /* But circstring subgeoms *do* get type identifiers */
441  break;
442  case COMPOUNDTYPE:
443  /* And compoundcurve subgeoms *do* get type identifiers */
445  break;
446  default:
447  lwerror("lwmcurve_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
448  }
449  }
450  stringbuffer_append_len(sb, ")", 1);
451 }
static uint8_t variant
Definition: cu_in_twkb.c:26
static uint8_t precision
Definition: cu_in_twkb.c:25
#define COMPOUNDTYPE
Definition: liblwgeom.h:124
#define LINETYPE
Definition: liblwgeom.h:117
#define CIRCSTRINGTYPE
Definition: liblwgeom.h:123
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:216
#define WKT_IS_CHILD
#define WKT_NO_TYPE
Well-Known Text (WKT) Output Variant Types.
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
static void lwcircstring_to_wkt_sb(const LWCIRCSTRING *circ, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:208
static void dimension_qualifiers_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, uint8_t variant)
Definition: lwout_wkt.c:40
static void empty_to_wkt_sb(stringbuffer_t *sb)
Definition: lwout_wkt.c:70
static void lwcompound_to_wkt_sb(const LWCOMPOUND *comp, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:318
static void lwline_to_wkt_sb(const LWLINE *line, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:162
type
Definition: ovdump.py:42
static void stringbuffer_append_len(stringbuffer_t *s, const char *a, size_t alen)
Append the specified string to the stringbuffer_t using known length.
Definition: stringbuffer.h:91
uint8_t type
Definition: liblwgeom.h:476
LWGEOM ** geoms
Definition: liblwgeom.h:631
uint32_t ngeoms
Definition: liblwgeom.h:636

References CIRCSTRINGTYPE, COMPOUNDTYPE, dimension_qualifiers_to_wkt_sb(), empty_to_wkt_sb(), LWMCURVE::geoms, LINETYPE, lwcircstring_to_wkt_sb(), lwcompound_to_wkt_sb(), lwerror(), lwline_to_wkt_sb(), lwtype_name(), LWMCURVE::ngeoms, precision, stringbuffer_append_len(), LWGEOM::type, ovdump::type, variant, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwgeom_to_wkt_sb().

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