PostGIS  2.5.0dev-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 404 of file lwout_wkt.c.

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, stringbuffer_append(), ovdump::type, LWGEOM::type, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwgeom_to_wkt_sb().

405 {
406  uint32_t i = 0;
407 
408  if ( ! (variant & WKT_NO_TYPE) )
409  {
410  stringbuffer_append(sb, "MULTICURVE"); /* "MULTICURVE" */
412  }
413  if ( mcurv->ngeoms < 1 )
414  {
415  empty_to_wkt_sb(sb);
416  return;
417  }
418  stringbuffer_append(sb, "(");
419  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
420  for ( i = 0; i < mcurv->ngeoms; i++ )
421  {
422  int type = mcurv->geoms[i]->type;
423  if ( i > 0 )
424  stringbuffer_append(sb, ",");
425  switch (type)
426  {
427  case LINETYPE:
428  /* Linestring subgeoms don't get type identifiers */
429  lwline_to_wkt_sb((LWLINE*)mcurv->geoms[i], sb, precision, variant | WKT_NO_TYPE );
430  break;
431  case CIRCSTRINGTYPE:
432  /* But circstring subgeoms *do* get type identifiers */
434  break;
435  case COMPOUNDTYPE:
436  /* And compoundcurve subgeoms *do* get type identifiers */
438  break;
439  default:
440  lwerror("lwmcurve_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
441  }
442  }
443  stringbuffer_append(sb, ")");
444 }
#define LINETYPE
Definition: liblwgeom.h:85
uint8_t variant
Definition: cu_in_twkb.c:26
#define COMPOUNDTYPE
Definition: liblwgeom.h:92
static void dimension_qualifiers_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, uint8_t variant)
Definition: lwout_wkt.c:39
static void lwcircstring_to_wkt_sb(const LWCIRCSTRING *circ, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:201
unsigned int uint32_t
Definition: uthash.h:78
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:218
#define WKT_IS_CHILD
uint8_t precision
Definition: cu_in_twkb.c:25
#define WKT_NO_TYPE
Well-Known Text (WKT) Output Variant Types.
static void empty_to_wkt_sb(stringbuffer_t *sb)
Definition: lwout_wkt.c:69
void stringbuffer_append(stringbuffer_t *s, const char *a)
Append the specified string to the stringbuffer_t.
Definition: stringbuffer.c:134
static void lwcompound_to_wkt_sb(const LWCOMPOUND *comp, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:311
LWGEOM ** geoms
Definition: liblwgeom.h:550
uint8_t type
Definition: liblwgeom.h:398
type
Definition: ovdump.py:41
#define CIRCSTRINGTYPE
Definition: liblwgeom.h:91
uint32_t ngeoms
Definition: liblwgeom.h:548
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
static void lwline_to_wkt_sb(const LWLINE *line, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:155
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