PostGIS  2.5.1dev-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 405 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().

406 {
407  uint32_t i = 0;
408 
409  if ( ! (variant & WKT_NO_TYPE) )
410  {
411  stringbuffer_append(sb, "MULTICURVE"); /* "MULTICURVE" */
413  }
414  if ( mcurv->ngeoms < 1 )
415  {
416  empty_to_wkt_sb(sb);
417  return;
418  }
419  stringbuffer_append(sb, "(");
420  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
421  for ( i = 0; i < mcurv->ngeoms; i++ )
422  {
423  int type = mcurv->geoms[i]->type;
424  if ( i > 0 )
425  stringbuffer_append(sb, ",");
426  switch (type)
427  {
428  case LINETYPE:
429  /* Linestring subgeoms don't get type identifiers */
430  lwline_to_wkt_sb((LWLINE*)mcurv->geoms[i], sb, precision, variant | WKT_NO_TYPE );
431  break;
432  case CIRCSTRINGTYPE:
433  /* But circstring subgeoms *do* get type identifiers */
435  break;
436  case COMPOUNDTYPE:
437  /* And compoundcurve subgeoms *do* get type identifiers */
439  break;
440  default:
441  lwerror("lwmcurve_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
442  }
443  }
444  stringbuffer_append(sb, ")");
445 }
#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:202
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:312
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:156
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