PostGIS  2.3.8dev-r@@SVN_REVISION@@

◆ lwcurvepoly_to_wkt_sb()

static void lwcurvepoly_to_wkt_sb ( const LWCURVEPOLY cpoly,
stringbuffer_t sb,
int  precision,
uint8_t  variant 
)
static

Definition at line 351 of file lwout_wkt.c.

References CIRCSTRINGTYPE, COMPOUNDTYPE, dimension_qualifiers_to_wkt_sb(), empty_to_wkt_sb(), LINETYPE, lwcircstring_to_wkt_sb(), lwcompound_to_wkt_sb(), lwerror(), lwline_to_wkt_sb(), lwtype_name(), LWCURVEPOLY::nrings, LWCURVEPOLY::rings, stringbuffer_append(), ovdump::type, LWGEOM::type, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwgeom_to_wkt_sb(), and lwmsurface_to_wkt_sb().

352 {
353  int i = 0;
354 
355  if ( ! (variant & WKT_NO_TYPE) )
356  {
357  stringbuffer_append(sb, "CURVEPOLYGON"); /* "CURVEPOLYGON" */
359  }
360  if ( cpoly->nrings < 1 )
361  {
362  empty_to_wkt_sb(sb);
363  return;
364  }
365  stringbuffer_append(sb, "(");
366  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
367  for ( i = 0; i < cpoly->nrings; i++ )
368  {
369  int type = cpoly->rings[i]->type;
370  if ( i > 0 )
371  stringbuffer_append(sb, ",");
372  switch (type)
373  {
374  case LINETYPE:
375  /* Linestring subgeoms don't get type identifiers */
376  lwline_to_wkt_sb((LWLINE*)cpoly->rings[i], sb, precision, variant | WKT_NO_TYPE );
377  break;
378  case CIRCSTRINGTYPE:
379  /* But circstring subgeoms *do* get type identifiers */
381  break;
382  case COMPOUNDTYPE:
383  /* And compoundcurve subgeoms *do* get type identifiers */
385  break;
386  default:
387  lwerror("lwcurvepoly_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
388  }
389  }
390  stringbuffer_append(sb, ")");
391 }
#define LINETYPE
Definition: liblwgeom.h:85
uint8_t variant
Definition: cu_in_twkb.c:26
LWGEOM ** rings
Definition: liblwgeom.h:534
#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:196
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
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:306
uint8_t type
Definition: liblwgeom.h:395
type
Definition: ovdump.py:41
#define CIRCSTRINGTYPE
Definition: liblwgeom.h:91
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:102
static void lwline_to_wkt_sb(const LWLINE *line, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:150
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